Product Description
Oilless Air Compressor Featuers:
1.Super Silent
Super low noise.The output air pressure is stable without fluctuations, reducing noise pollution.
2. Safety
If the voltage or current cause the machine overheat, it will automatically shut down to protect from burnout.
3. Automatic control
Pressure switch automatically controls the start and stop of the machine.
4. Adjustable air pressure
The air pressure can be adjusted to meet the needs of different equipment usage.
5. Save human power
Switch on the air compressor can work normally & automatically. It is easy to operate and does not need human to be on duty.
6. Easy maintenance
No need to add any lubricant, easy maintenance after purchase.
Parts Features
1.Heavy cast iron body: heavy load, long stroke, low fuel consumption, low noise
2.Cylinder: made of high-grade cast iron, strength, good lubricity, wall by the fine honing, wear-resistant, durable
3.Piston ring: good elasticity, excellent wear resistance, low oil consumption, not easy to make the valve group carbon deposition and loss of oil to burn the crankshaft and connecting rod.
4.The crankshaft, connecting rod, piston: well balanced, wear resistance, high strength, smooth running balance.
5.High reliable and durable valve; strong aluminum alloy body, light and heat.
6.The motor provides reliable power, low voltage start up and running performance strong fan cooled motor and body; special shock proof design.
7.Double nozzles, were used to direct the exhaust and pressure exhaust; pressure switch with push button, safe and convenient
8.Oil free,silent,protect-environment,suitable for dental use.
Frequency Asked Question
1.Are you the manufacturer or trading company?
We are the manufacturer.
2.Where is your factory?
It is located in HangZhou City,ZHangZhoug Province,China.
3.What’s the terms of trade?
FOB,CFR,CIF or EXW are all acceptable.
4.What’s the terms of payment?
T/T,L/C at sight or cash.
5.What’s the lead time?
We are the manufacturer.
It is located in HangZhou City,ZHangZhoug Province,China.
FOB,CFR,CIF or EXW are all acceptable.
T/T,L/C at sight or cash.
In 15 days on receipt of deposit .
6.Do you accept sample order?
Yes,we accept.
7.What about the cost of sample?
You have to pay the freight charge.But the cost of product could be refundable,if you will purchase 1x20GP container in the future.
Yes,we accept.
You have to pay the freight charge.But the cost of product could be refundable,if you will purchase 1x20GP container in the future.
| Lubrication Style: | Oil-free |
|---|---|
| Cooling System: | Air Cooling |
| Cylinder Arrangement: | Duplex Arrangement |
| Cylinder Position: | Vertical |
| Structure Type: | Open Type |
| Compress Level: | Double-Stage |
| Samples: |
US$ 80/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|

Types of Air Compressors
There are many types of Air Compressors available on the market. Learn which one is right for your needs and what makes one better than another. Find out more about Single-stage models, Oil-free models, and Low-noise models. This article will explain these types and help you decide which one you need. You can also learn about Air Compressors that have single-stage compressors. If you are looking for a high-quality compressor, this article will help you choose a unit.
Air Compressors
Air compressors work by forcing atmospheric air through an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder through an exhaust valve. One of the most common types of air compressor is the reciprocating type. Another type of compressor is a single-stage piston. These types of compressors compress air in one stroke – equivalent to the complete rotation of the piston’s crankshaft.
These devices change electrical or mechanical energy into pressurized air. When air is compressed, its volume decreases, increasing its pressure. Air compressors typically have a minimum pressure of 30 bars. The lower pressure band is the range of air pressure. Most compressors are controlled separately, but network controls can be used to interconnect multiple compressors. This type of controller will not work for all types of compressors. There are other types of air compressors that can communicate with each other.
Compressed air has multiple applications in all kinds of industries. In agriculture, it can power pneumatically powered material handling machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical industry for mixing tanks, packaging, and conveyor systems. Portable air compressors, which can be powered by diesel fuel, are frequently used at remote drilling sites. Portable air compressors are also commonly used in oil and gas. They can be used to remotely control valves and install reactor rods.
Whether you use an air compressor for agricultural purposes or in a manufacturing setting, there are some features to consider when choosing an air compressor for your needs. A good compressor will have a safety device. It will automatically shut off the input air and output air once sufficient compressing has been achieved. These features will help your air compressor remain efficient and protect your equipment. The safety device is an important feature of any air compressor to increase its overall efficiency.
Vane air compressors are the most common type. They are generally smaller and less powerful than reciprocating piston compressors, so you can use one of these for applications that are under 100 horsepower. The vane air compressors have low compression ratios and high capacities, but they are generally limited to low-power applications. Vane compressors tend to run hot, and they typically have a low compression ratio. It is important to choose the correct oil viscosity for your compressor.
Single-stage models
When comparing single-stage air compressors, look for the term “stages.” Multi-stage compressors use two stages and can handle more capacity and pressure. One stage involves pressurizing air using a piston and a lower-pressure cylinder. This compressed air is then moved to a storage tank. Single-stage models tend to be more energy-efficient than their two-stage counterparts. But if you don’t need a high-pressure cylinder, a single-stage air compressor can be the best choice.
Although single-stage air compressors produce less power, they can produce enough air to power pneumatic tools and other pneumatic equipment. These single-stage units are most useful for smaller-scale home projects and DIY projects. For more industrial purposes, a dual-stage model is the best choice. But if you’re in a hurry, a single-stage unit may be sufficient. Ultimately, it depends on what you plan to do with the air compressor.
Single-stage air compressors feature a single cylinder, one piston stroke for each revolution of pressurized air. Single-stage compressors are typically smaller and more compact, making them a good choice for smaller work environments. Their cfm capacity (cubic feet per minute) is an important indicator of operating capacity. If you plan to use multiple pneumatic tools, you will probably need a higher cfm model. Similarly, the horsepower of single-stage compressors indicates its working capacity. One horsepower moves 550 pounds per foot per minute.
Multi-stage air compressors are generally more expensive and more energy-efficient than single-stage units, but they can offer higher air flow rates. While they may be more complex, they can lower general operating expenses. If you plan on using your air compressor for industrial or commercial use, a dual-stage model might be the best choice. However, if you’re planning to use the air compressor for mass production, a single-stage model may be the best choice.
Single-stage air compressors have the same piston size and number of inlets, while dual-stage models have a smaller first piston and a much longer second piston. Both have a cooling tube in between the two pistons to reduce the air temperature before the second round of compression. The single-stage model is typically small and portable, while the double-stage air compressor is stationary. These compressors can both be stationary and large.
Low-noise models
Despite its name, low-noise models of air compressors are not all the same. The noise level of a compressor can be affected by several factors, including the power source and proximity to the machine. Reciprocal compressors are generally louder than electric ones because of their many moving parts. By contrast, rotary-screw and scroll compressors have fewer moving parts and are quieter.
The noise level of a gas-powered air compressor can be extremely high, making it unsuitable for use indoors. To combat this problem, you can choose an electric model. The noise level of a compressor is primarily caused by motor friction. The cover of a piston is also a major factor in noise, as pistons with minimal covers will produce a lot of noise. Previously, oil was required for a quiet compressor. However, this has changed thanks to the medical industry’s demand for oil-free models.
The CZPT EC28M Quiet Air Compressor is another model that features quiet operation. This air compressor makes 59dB of noise. This level is low enough to allow you to carry on normal conversations while it cycles. In addition, this compressor has an industrial oil-free pump and a 2.8 Amp direct-drive induction motor. These two features make it a great choice for businesses.
Low-noise models of air compressors are available for the construction industry. However, these compressors are not necessarily low-quality, which is why you should consider the noise level of your air tool before purchasing one. The specialists at CZPT can recommend the low-noise models for your particular application and space. Noise can distract people who work near the air compressor. That is why many businesses now opt for these models.
Oil-free models
A number of oil-free models of air compressors are available, but what makes them special? Oil-free compressors don’t contain oil, so they’re lubricated by grease instead. They’re a good choice if you’re working with a small compressor and don’t want to risk damaging it. On the other hand, oil-free models do generate significant amounts of heat, which can damage the compressor. Higher pressure can grind the compressor against itself, or even warp it.
A few words of knowledge can help you choose the best oil-free air compressor for your needs. For example, a compressor’s horsepower is a measurement of how powerful the motor is. Higher horsepower means a higher PSI or ACFM. You can also use the ACFM to compare the two. Scroll technology is a modern air compression system that uses a stationary and mobile spiral. This reduces the volume of air in the compressor by directing it to the center.
Purchasing an oil-free air compressor doesn’t have to be a daunting task, though. A good distributor can advise you on what type of oil-free air compressor is right for you. This way, you can save money and enjoy peace of mind while using your air compressor. And, of course, the best way to get a great deal on an air compressor is to speak to a distributor who is knowledgeable about the products available.
An oil-free air compressor is a great option for businesses that are sensitive to the contamination of air. For example, in the pharmaceutical and food industry, a minuscule oil could spoil a product or even damage production equipment. Oil-free air compressors generally have lower maintenance costs than oil-flooded models because there are fewer moving parts. Because of this, oilless air compressors require fewer maintenance and may still need to be replaced occasionally.
A few advantages of an oil-free air compressor over an oil-lubricated one include lower noise levels. Oil-free air compressors tend to be less noisy and run more quietly than oil-injected ones, but you should still carefully weigh the pros and cons before making a decision. Also, consider how much you use your air compressor before choosing a model. The pros outweigh the cons. In the end, you’ll be glad you chose an oil-free air compressor.


editor by CX 2023-05-30
China best 250kw Variable Speed Drive Mute AC Two Stage Rotary Screw Oil Free Dry Air Compressor portable air compressor
Product Description
| Specification | ||||||||
| Model | Capacitiy (FAD)M3/min | Power kw | Noise level db | Weight KG | ||||
| 7bar | 8.5bar | 10bar | Water Cooling | Air Cooling | ||||
| OFA1 | OFA15 | 2.4 | 2.1 | 1.8 | 15 | 74 | 1,030 | |
| OFA22 | 3.7 | 3.2 | 2.7 | 22 | 74 | 1,070 | ||
| OFA30 | 4.8 | 4.4 | 4.0 | 30 | 74 | 1,300 | ||
| OFA37 | 5.9 | 5.3 | 5.0 | 37 | 74 | 1,355 | ||
| OFA45 | 7.0 | 6.5 | 6.1 | 45 | 74 | 1,390 | ||
| OFA2 | OFA55 | 9.2 | 7.9 | 7.3 | 55 | 74 | 1,860 | |
| OFA75 | 12.2 | 11.2 | 10.7 | 75 | 74 | 1,935 | ||
| OFA90 | 14.7 | 13.5 | 12.7 | 90 | 74 | 2,000 | ||
| OFA3 | OFA110 | 19.3 | 17.2 | 16.0 | 110 | 74 | 3,660 | |
| OFA132 | 22.9 | 19.5 | 18.8 | 132 | 74 | 3,700 | ||
| OFA4 | OFA160 | 29.4 | 25.7 | 23.8 | 160 | 74 | 5,300 | |
| OFA200 | 36.6 | 33.1 | 30.4 | 200 | 74 | 5,380 | ||
| OFA250 | 44.5 | 41.0 | 37.4 | 250 | 74 | 5,450 | ||
| OFA275 | 47.4 | 43.0 | 41.0 | 275 | 74 | 5,500 | ||
| OFA5 | OFA315 | 51.5 | 47.6 | 46.0 | 315 | 74 | 6,000 | |
| OFA355 | 56.3 | 52.6 | 50.4 | 355 | 74 | 9,050 | ||
| OFW1 | OFW37 | 5.9 | 5.3 | 5.0 | 37 | 74 | 1,355 | |
| OFW45 | 7.0 | 6.5 | 6.1 | 45 | 74 | 1,450 | ||
| OFW2 | OFW55 | 8.8 | 7.9 | 7.3 | 55 | 74 | 1,800 | |
| OFW75 | 11.9 | 11.2 | 10.7 | 75 | 74 | 1,850 | ||
| OFW90 | 14.3 | 13.5 | 12.7 | 90 | 74 | 1,925 | ||
| OFW3 | OFW110 | 19.1 | 17.1 | 16.0 | 110 | 74 | 2,635 | |
| OFW132 | 21.9 | 19.6 | 18.9 | 132 | 74 | 2,760 | ||
| OFW4 | OFW160 | 28.3 | 26.1 | 24.2 | 160 | 74 | 3,850 | |
| OFW200 | 36.1 | 33.1 | 30.4 | 200 | 74 | 4,000 | ||
| OFW250 | 43.1 | 41.0 | 37.0 | 250 | 74 | 4,100 | ||
| OFW275 | 46.4 | 43.0 | 41.0 | 275 | 74 | 4,300 | ||
| OFW5 | OFW315 | 50.9 | 47.6 | 46.0 | 315 | 74 | 6,550 | |
| OFW355 | 56.3 | 52.6 | 50.4 | 355 | 74 | 6,950 | ||
| OFW400 | 62.1 | 57.8 | 55.8 | 400 | 74 | 7,050 | ||
| OFW450 | 76.5 | 71.5 | 63.8 | 450 | 74 | 8,400 | ||
| OFW500 | 83.9 | 78.3 | 73.1 | 500 | 74 | 8,400 | ||
| OFW630 | 102.9 | 95.7 | 89.0 | 630 | 74 | 9,125 | ||
| OFW750 | 122.8 | 109.6 | 101.8 | 750 | 74 | 9,225 | ||
| Company Profile |
ZheJiang Napu compressor Technology Co.,LTD was established in 2012 based in ZheJiang ,specializing in oil-free rotary screw air compressors, offering a wide range of products from airends to compressors .
With over 10 years experience in oil free screw air compressor. NAPU Compressor is compliant with ISO 8573-1, Class 0 standard and audited by TUV Rheinland and China National Quality Inspection Center of Compressor and Refrigerator.
The company is also compliant with ISO 9001:14001 and is CZPT in the domestic market for its quality-driven culture. The oil-free compressors manufactured by the company are used in a variety of sectors including some of our valued clients like CASC-China Aerospace Science Corporation, NORINCO-China North Industries Group, CNNC-China National Nuclear Group, CHANG AN AUTO, SINOPHARM, BYD and CALT and Sino-Chemical etc.
Continuous improvement in productivity and efficiency is our goal, and we continue to offer an extensive services including our own branded oil-free compressor package as well as after-sales services for other leading brands.
| Product Features |
1. In house designed airend
2. 100% oil free air certified by Germany TUV.
3. Double-layer structure to reduce he noise.
4. Air Cooling and Water cooling are available.
5. VSD control are available.
6.Touch Screen PLC with preset running schedule, more intelligent control.
7.OEM&ODM service are accepted
| FAQ |
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of oil free air compressors. More than 20 years of experience in air compressor manufacturing.
Q2. What’s payment term ?
A: T/T, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q3. How about your after-sales service ?
A: 1.We can provide customers with installation and commissioning online instructions.
Q4. How about your warranty?
A: One year for the whole machine and 5 years for screw air end, except consumable spare parts.
Q5. Do you have any certificate ?
A: Yes, we can offer CE ,ISO and certificate as clients’ demande.
Q6. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Each compressor must pass at least 8 hours of continuous testing before leaving the factory.
Q7.How long could your air compressor be used?
A: Usually, more than over 10 years.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 12 Months |
| Lubrication Style: | Oil-free |
| Cooling System: | Water Cooling |
| Power Source: | AC Power |
| Cylinder Position: | Horizontal |
| Customization: |
Available
|
|
|---|

Choose an Air Compressor for Your Business
There are several factors to consider when choosing an air compressor for your business. One factor to consider is the type of compressor you are looking for, which may include single-stage, low noise, and positive displacement. Hope this article helps you make the right decision. After all, your business success will depend on this device! Let’s take a closer look at these factors. Also, consider what compressor manufacturers say about their products.
Positive displacement
Positive displacement air compressors compress air by drawing in a volume from an inlet and extruding it out of a chamber. This increases the pressure at which the gas can be pumped at rates that cannot be pumped through the outlet at lower pressures at higher mass flow rates. These types of compressors are available in single-acting and double-acting configurations. They are classified by the number of cylinders.
There are two different types of air compressors: reciprocating air compressors and screw compressors. Both are roll machines. Positive displacement air compressors use pistons and cylinders to compress air. The resulting air pressure builds up within the compressor housing, increasing the potential energy of the compressed air. Screw air compressors are the most popular positive displacement air compressors, which can be either single-stage screw-blade air compressors or multi-stage screw-blade oil-immersed screw air compressors.
Positive displacement flowmeters use a rotating measuring chamber to divide the fluid into discrete quantities. The number of times the chamber was refilled and emptied was used to estimate the total flow. However, positive displacement flow meters are prone to leaks, reducing the accuracy of the estimates. If a leak occurs, it can cause false readings and damage the compressor. However, leaks in positive displacement air compressors can reduce pressure.
The most common types of positive displacement air compressors are screw, reciprocating, and vane. Rotary positive displacement air compressors are also available as well as many other air compressors. Positive displacement air compressors are most commonly used in large manufacturing facilities. If you are considering an air compressor for commercial or industrial applications, it is imperative to understand how the components of the unit work. Please read the information below to learn more before deciding which application is best for you.
Positive displacement air compressors use a piston to force air into a chamber, compressing the air in the process. The piston moves in the opposite direction, thereby reducing the volume of the chamber. When the amount of air in the chamber reaches its maximum value, the valve opens, allowing it to escape at higher pressure. Positive displacement air compressors are generally less efficient than centrifugal compressors. However, they are still an excellent choice for a variety of applications.
Single-stage
The discharge pressure of the single-stage air compressor is used to control the operation of the compressor. Properly designed load/unload controls allow the air compressor to operate at its most efficient point while minimizing stress on the main engine bearings. Single-stage air compressors can approach variable speed efficiency with appropriate storage capacity. However, improper storage can cause premature bearing wear on the main unit. If this is the case, a single-stage air compressor may not be ideal.
A single-stage air compressor has only one cylinder, which means one stroke is required to move air from one cylinder to another. Pressure is measured in cubic feet per minute or CFM. Tank size is also important as a large single-stage air compressor may be required to operate multiple air tools. Single-stage air compressors can be used in a variety of applications and can last for years.
For the most common uses, single-stage air compressors are the most practical option. These devices work with most hand tools, from hammers to grinders. Single-stage air compressors are lightweight and easy to move. However, two-stage air compressors provide more CFM, making them a better choice for industrial or commercial use. However, two-stage compressors are not suitable for private use. Therefore, if your main purpose is DIY and craft projects, it is better to choose a single-stage air compressor.
Compared with two-stage air compressors, single-stage screw air compressors are cheaper. They come from a variety of manufacturers and range in power from 3 to 600 horsepower. Single-stage air compressors are a cost-effective solution for a variety of air compressor needs. They offer flexibility and multiple control methods, making them an excellent choice for many different applications. Therefore, when choosing an air compressor for your business, choose the one with the most suitable functions.
Single-stage air compressors are the most affordable and easy-to-use air compressors for small to medium jobs. They also have higher compression ratios. The compression ratio is the ratio of absolute discharge pressure to absolute inlet pressure. When calculating the ratio, it takes into account atmospheric pressure and gauge pressure. The compression ratio pushes the surface area of the rotor, which increases the thrust load.
Single-stage air compressors are smaller and easier to transport than two-stage units. Single-stage air compressors have one air intake, and two-stage air compressors have two air intakes. The difference between single-stage and two-stage air compressors largely depends on the number of times the air is compressed. A single-stage air compressor compresses the air once, while a dual-stage air compressor compresses the same amount of air twice.
low noise
Low noise air compressors are ideal for a variety of applications. While no air compressor is completely silent, some models are much quieter than others. For the Hitachi EC28M portable compressor, the noise level is 59 decibels. The compressor features steel rollers that protect the internal components and give it a sleek, modern look. It also has a one-gallon fuel tank and a half-horsepower drive.
Noise from air compressors can be distracting and reduce productivity. It is important to choose low-noise air compressors to keep employees healthy and happy at work. While noise is an unfortunate aspect of working on the shop floor, reducing it can improve productivity. By reducing distracting noise, employees can focus on their work and communicate more effectively. That means higher quality work and happier clients. If you’re looking for a low-noise air compressor, be sure to read the tips below.
Low noise air compressors are an excellent choice for businesses of all sizes. These powerful tools can run multiple tools simultaneously. The two water tanks are made of rust-resistant aluminum and are stackable. This air compressor is heavier and can handle large jobs with ease. It costs more than other air compressors, but it can handle a lot of work efficiently. CZPT Air Tools air compressors come with a one-year warranty and are highly recommended by contractors.
Noiseless air compressors are generally more expensive than comparable products, but they are worth the extra cost. Noiseless compressors are a good option for businesses that need to avoid disturbing nearby people. For example, you might want to consider a low-noise air compressor for a dental office, which cannot tolerate noise. Fortunately, this problem can be solved by relocating the compressor to a location that is more isolated from your workspace.
One brand of low-noise air compressors offers two models. The CZPT Air Tools 2010A features a large cast aluminum can, regulating pressure gauge, and two universal quick-connects. It produces 68 decibels of noise when it works. It has a large 8-gallon fuel tank capacity and has wheels and handles for easy transport. Its powerful engine produces a low noise level of 68 decibels.
Another popular low noise air compressor is the Makita MAC210Q Quiet Series. This model is capable of producing up to 71.5 decibels of sound, which is the amount of air it produces at 90PSI. The MAC210Q features a durable oil-free pump and weighs just 36 pounds with a handle and wheels. These compressors are easy to move and ideal for indoor work.

editor by CX 2023-05-24
China Good quality AC Industrial Screw Oil Free Two Stage Air Compressor Ofw250VSD air compressor lowes
Product Description
The founder led his team and launched an after-sales service company specialised in oil-free rotary screw air compressors in 2005, offering a range of products from airends to compressors of leading brands. With previous experience in maunufacuting oil-free air compressors, the founder established a workshop in ZheJiang in 2009 specialised in manufacturing oil-free airends and on site testing.
The workshop was such a success ZheJiang NAPU Compressor Co. Ltd. was then founded in 2012.
NAPU Compressor is compliant with ISO 8573-1, Class 0 standard and audited by TUV Rheinland and China National Quality Inspection Center of Compressor and Refrigerator.
The company is also compliant with ISO 9001:14001 and is CZPT in the domestic market for its quality-driven culture. The oil-free compressors manufactured by the company are used in a variety of sectors including some of our valued clients like CASC-China Aerospace Science Corporation, NORINCO-China North Industries Group, CNNC-China National Nuclear Group, CHANG AN AUTO, SINOPHARM, BYD and CALT and Sino-Chemical etc.
Continuous improvement in productivity and efficiency is our goal, and we continue to offer an extensive services including our own branded oil-free compressor package as well as after-sales services for other leading brands.
| Napu Model No. | Working pressure | FAD | Dimension(L*W*Hmm) | Weight (kg) | Speed RPM | Air outlet pipe diameter | Power | Air Cooling capacity | ||
| BarG | m3/min | mm | mm | mm | kg | rpm | kW | m3/h | ||
| OFW55VSD | 7.5 | 4.5-8.8 | 2100 | 1450 | 2000 | 2080 | 2970 | DN50 | / | / |
| 8.6 | 4.4 – 8.4 | |||||||||
| 10.4 | 3.8-7.3 | |||||||||
| OFW75VSD | 7.5 | 7-14 | 2100 | 2975 | ||||||
| 8.6 | 6.6-13.4 | |||||||||
| 10.4 | 5.8-12.1 | |||||||||
| OFW90VSD | 7.5 | 7.5-15.9 | 2150 | 2975 | ||||||
| 8.6 | 7.5-15.7 | |||||||||
| 10.4 | 7-14.1 | |||||||||
| OFA110VSD | 7.5 | 8.7-18.4 | 2600 | 1650 | 2300 | 3750 | 2980 | DN80 | 11 | 30000 |
| 8.6 | 8.1-17.2 | |||||||||
| 10 | 7.5-16 | |||||||||
| OFA132VSD | 7.5 | 10.6-21.8 | 3850 | 2980 | ||||||
| 8.6 | 9.3-19.5 | |||||||||
| 10 | 9.2-19 | |||||||||
| OFA145VSD | 7.5 | 10-23.2 | 3950 | 2980 | ||||||
| 8.6 | 10-21.5 | |||||||||
| 10 | 9.5-19.9 | |||||||||
| OFA160VSD | 7.5 | 12-27.9 | 4050 | 2980 | ||||||
| 8.6 | 12-25.7 | |||||||||
| 10 | 11-23.8 | |||||||||
| OFW110VSD | 7.5 | 9-19.1 | 2600 | 1650 | 1800 | 2700 | 2980 | DN80 | / | / |
| 8.6 | 8.3-17.1 | |||||||||
| 10 | 7.5-16 | |||||||||
| OFW132VSD | 7.5 | 11~23 | 2840 | 2980 | ||||||
| 8.6 | 10-22.6 | |||||||||
| 10 | 10-20.4 | |||||||||
| OFW145VSD | 7.5 | 10-23.5 | 2980 | 2980 | ||||||
| 8.6 | 10-21.7 | |||||||||
| 10 | 10-20.1 | |||||||||
| OFW160VSD | 7.5 | 12~26 | 3571 | 2980 | ||||||
| 8.6 | 12-25.1 | |||||||||
| 10 | 11-23.2 | |||||||||
| OFA200VSD | 7.5 | 16-34.1 | 3100 | 1650 | 2400 | 5600 | 1490 | DN80 | 15 | 40000 |
| 8.6 | 15-31.3 | |||||||||
| 10 | 15-30 | |||||||||
| OFA250VSD | 7.5 | 21-42.4 | 5800 | 1490 | ||||||
| 8.6 | 20-40.4 | |||||||||
| 10 | 18-36.8 | |||||||||
| OFA275VSD | 7.5 | 22-44.3 | 5850 | 1490 | 18.5 | 50000 | ||||
| 8.6 | 21-42.4 | |||||||||
| 10 | 20-40.4 | |||||||||
| OFA315VSD | 7.5 | 17.1-51.4 | ||||||||
| 8.6 | 15.8-47.6 | |||||||||
| 10 | 15.3-46 | |||||||||
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 12 Months |
| Lubrication Style: | Oil-free |
| Cooling System: | Water Cooling |
| Power Source: | AC Power |
| Cylinder Position: | Horizontal |
| Customization: |
Available
|
|
|---|

Types of Air Compressors
There are many types of Air Compressors available on the market. Learn which one is right for your needs and what makes one better than another. Find out more about Single-stage models, Oil-free models, and Low-noise models. This article will explain these types and help you decide which one you need. You can also learn about Air Compressors that have single-stage compressors. If you are looking for a high-quality compressor, this article will help you choose a unit.
Air Compressors
Air compressors work by forcing atmospheric air through an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder through an exhaust valve. One of the most common types of air compressor is the reciprocating type. Another type of compressor is a single-stage piston. These types of compressors compress air in one stroke – equivalent to the complete rotation of the piston’s crankshaft.
These devices change electrical or mechanical energy into pressurized air. When air is compressed, its volume decreases, increasing its pressure. Air compressors typically have a minimum pressure of 30 bars. The lower pressure band is the range of air pressure. Most compressors are controlled separately, but network controls can be used to interconnect multiple compressors. This type of controller will not work for all types of compressors. There are other types of air compressors that can communicate with each other.
Compressed air has multiple applications in all kinds of industries. In agriculture, it can power pneumatically powered material handling machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical industry for mixing tanks, packaging, and conveyor systems. Portable air compressors, which can be powered by diesel fuel, are frequently used at remote drilling sites. Portable air compressors are also commonly used in oil and gas. They can be used to remotely control valves and install reactor rods.
Whether you use an air compressor for agricultural purposes or in a manufacturing setting, there are some features to consider when choosing an air compressor for your needs. A good compressor will have a safety device. It will automatically shut off the input air and output air once sufficient compressing has been achieved. These features will help your air compressor remain efficient and protect your equipment. The safety device is an important feature of any air compressor to increase its overall efficiency.
Vane air compressors are the most common type. They are generally smaller and less powerful than reciprocating piston compressors, so you can use one of these for applications that are under 100 horsepower. The vane air compressors have low compression ratios and high capacities, but they are generally limited to low-power applications. Vane compressors tend to run hot, and they typically have a low compression ratio. It is important to choose the correct oil viscosity for your compressor.
Single-stage models
When comparing single-stage air compressors, look for the term “stages.” Multi-stage compressors use two stages and can handle more capacity and pressure. One stage involves pressurizing air using a piston and a lower-pressure cylinder. This compressed air is then moved to a storage tank. Single-stage models tend to be more energy-efficient than their two-stage counterparts. But if you don’t need a high-pressure cylinder, a single-stage air compressor can be the best choice.
Although single-stage air compressors produce less power, they can produce enough air to power pneumatic tools and other pneumatic equipment. These single-stage units are most useful for smaller-scale home projects and DIY projects. For more industrial purposes, a dual-stage model is the best choice. But if you’re in a hurry, a single-stage unit may be sufficient. Ultimately, it depends on what you plan to do with the air compressor.
Single-stage air compressors feature a single cylinder, one piston stroke for each revolution of pressurized air. Single-stage compressors are typically smaller and more compact, making them a good choice for smaller work environments. Their cfm capacity (cubic feet per minute) is an important indicator of operating capacity. If you plan to use multiple pneumatic tools, you will probably need a higher cfm model. Similarly, the horsepower of single-stage compressors indicates its working capacity. One horsepower moves 550 pounds per foot per minute.
Multi-stage air compressors are generally more expensive and more energy-efficient than single-stage units, but they can offer higher air flow rates. While they may be more complex, they can lower general operating expenses. If you plan on using your air compressor for industrial or commercial use, a dual-stage model might be the best choice. However, if you’re planning to use the air compressor for mass production, a single-stage model may be the best choice.
Single-stage air compressors have the same piston size and number of inlets, while dual-stage models have a smaller first piston and a much longer second piston. Both have a cooling tube in between the two pistons to reduce the air temperature before the second round of compression. The single-stage model is typically small and portable, while the double-stage air compressor is stationary. These compressors can both be stationary and large.
Low-noise models
Despite its name, low-noise models of air compressors are not all the same. The noise level of a compressor can be affected by several factors, including the power source and proximity to the machine. Reciprocal compressors are generally louder than electric ones because of their many moving parts. By contrast, rotary-screw and scroll compressors have fewer moving parts and are quieter.
The noise level of a gas-powered air compressor can be extremely high, making it unsuitable for use indoors. To combat this problem, you can choose an electric model. The noise level of a compressor is primarily caused by motor friction. The cover of a piston is also a major factor in noise, as pistons with minimal covers will produce a lot of noise. Previously, oil was required for a quiet compressor. However, this has changed thanks to the medical industry’s demand for oil-free models.
The CZPT EC28M Quiet Air Compressor is another model that features quiet operation. This air compressor makes 59dB of noise. This level is low enough to allow you to carry on normal conversations while it cycles. In addition, this compressor has an industrial oil-free pump and a 2.8 Amp direct-drive induction motor. These two features make it a great choice for businesses.
Low-noise models of air compressors are available for the construction industry. However, these compressors are not necessarily low-quality, which is why you should consider the noise level of your air tool before purchasing one. The specialists at CZPT can recommend the low-noise models for your particular application and space. Noise can distract people who work near the air compressor. That is why many businesses now opt for these models.
Oil-free models
A number of oil-free models of air compressors are available, but what makes them special? Oil-free compressors don’t contain oil, so they’re lubricated by grease instead. They’re a good choice if you’re working with a small compressor and don’t want to risk damaging it. On the other hand, oil-free models do generate significant amounts of heat, which can damage the compressor. Higher pressure can grind the compressor against itself, or even warp it.
A few words of knowledge can help you choose the best oil-free air compressor for your needs. For example, a compressor’s horsepower is a measurement of how powerful the motor is. Higher horsepower means a higher PSI or ACFM. You can also use the ACFM to compare the two. Scroll technology is a modern air compression system that uses a stationary and mobile spiral. This reduces the volume of air in the compressor by directing it to the center.
Purchasing an oil-free air compressor doesn’t have to be a daunting task, though. A good distributor can advise you on what type of oil-free air compressor is right for you. This way, you can save money and enjoy peace of mind while using your air compressor. And, of course, the best way to get a great deal on an air compressor is to speak to a distributor who is knowledgeable about the products available.
An oil-free air compressor is a great option for businesses that are sensitive to the contamination of air. For example, in the pharmaceutical and food industry, a minuscule oil could spoil a product or even damage production equipment. Oil-free air compressors generally have lower maintenance costs than oil-flooded models because there are fewer moving parts. Because of this, oilless air compressors require fewer maintenance and may still need to be replaced occasionally.
A few advantages of an oil-free air compressor over an oil-lubricated one include lower noise levels. Oil-free air compressors tend to be less noisy and run more quietly than oil-injected ones, but you should still carefully weigh the pros and cons before making a decision. Also, consider how much you use your air compressor before choosing a model. The pros outweigh the cons. In the end, you’ll be glad you chose an oil-free air compressor.


editor by CX 2023-04-18
China Custom Dry Oil Free 100% No Oil Screw Air Compressor for Food CZPT Medical Oxygen CZPT with Hot selling
Solution Description
Item Description
With CE and Class certification, the CZPT dry rotary screw oil-free air compressor can give you with 100% oil-free air and make sure the basic safety of your manufacturing line. Electricity ranges from 37 to 315 kilowatts.
Runningway set pace dry oil-free of charge screw air compressor can offer oil-free of charge air for a lengthy time. Can offer you with a continual offer of air.
The CZPT VSD dry oil-free of charge screw air compressor could supply variable frequency air to a technique. Saving income permits you to meet your various air ability demands. The air capacity ranges in between 2.6 and 51.5 m3/min.
Certifications
Item Parameters
Detailed Photos
| Model | Maximum Working Pressure | Capacity(FAD)* | Installed Motor Power | Cooling Method | Noise Level | Air Outlet Pipe Diameter |
Dimension | Weight | |||||
| 50hz | |||||||||||||
| bar(g) | psig | m3/min | cfm | kw | hp | dB(A) | L | W | H | kg | |||
| RF37-7A(W) | 7 | 102 | 6.5 | 229.5 | 37 | 50 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF37-8A(W) | 8 | 116 | 6.4 | 226 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF37-10A(W) | 10 | 145 | 6.3 | 222.4 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF45-7A(W) | 7 | 102 | 7.7 | 271.8 | 45 | 60 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF45-8A(W) | 8 | 116 | 6.5 | 229.5 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF45-10A(W) | 10 | 145 | 6.8 | 240.1 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF55-7A(W) | 7 | 102 | 9.6 | 339 | 55 | 75 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF55-8A(W) | 8 | 116 | 8.8 | 310.7 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF55-10A(W) | 10 | 145 | 7.7 | 271.9 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF75-7A(W) | 7 | 102 | 13.5 | 476.7 | 75 | 100 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF75-8A(W) | 8 | 116 | 13.3 | 469.6 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF75-10A(W) | 10 | 145 | 12.1 | 427.3 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-7A(W) | 7 | 102 | 16.2 | 572 | 90 | 120 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-8A(W) | 8 | 116 | 15.6 | 550.9 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-10A(W) | 10 | 145 | 14.2 | 501.4 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF110-7A(W) | 7 | 102 | 19.5 | 688.6 | 110 | 150 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 |
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF110-8A(W) | 8 | 116 | 19.2 | 678 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF110-10A(W) | 10 | 145 | 17.5 | 618 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF132-7A(W) | 7 | 102 | 23.5 | 829.8 | 132 | 175 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 |
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF132-8A(W) | 8 | 116 | 22.8 | 805.1 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF132-10A(W) | 10 | 145 | 20.5 | 723.9 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF145-7A(W) | 7 | 102 | 23.9 | 844 | 145 | 195 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 |
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF145-8A(W) | 8 | 116 | 22.1 | 780.4 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 | ||
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF145-10A(W) | 10 | 145 | 20.5 | 723.9 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 | ||
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF160-7A(W) | 7 | 102 | 28.5 | 1006.4 | 160 | 215 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5300 |
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF160-8A(W) | 8 | 116 | 26.4 | 932.3 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5300 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF160-10A(W) | 10 | 145 | 24.5 | 865.2 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5300 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF200-7A(W) | 7 | 102 | 36.1 | 1274.8 | 200 | 270 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF200-8A(W) | 8 | 116 | 33.9 | 1197.1 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF200-10A(W) | 10 | 145 | 30.8 | 1087.6 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF250-7A(W) | 7 | 102 | 45.2 | 1596.2 | 250 | 350 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5500 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF250-8A(W) | 8 | 116 | 43.4 | 1532.6 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF250-10A(W) | 10 | 145 | 38.8 | 1370.2 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF275-7A(W) | 7 | 102 | 46.8 | 1652.7 | 275 | 370 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF275-8A(W) | 8 | 116 | 43.5 | 1536.1 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF275-10A(W) | 10 | 145 | 41.5 | 1465.5 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF315-7A(W) | 7 | 102 | 53 | 1871.6 | 315 | 420 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
| RF315-8A(W) | 8 | 116 | 51.5 | 1818.7 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
| RF315-10A(W) | 10 | 145 | 49.5 | 1748 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
| Model | Maximum Working Pressure | Capacity(FAD)* | Installed Motor Power | Cooling Method | Noise Level | Air Outlet Pipe Diameter |
Dimension | Weight | |||||
| 50hz | |||||||||||||
| bar(g) | psig | m3/min | cfm | kw | hp | dB(A) | L | W | H | kg | |||
| RF37-7A(W) | 7 | 102 | 6.5 | 229.5 | 37 | 50 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF37-8A(W) | 8 | 116 | 6.4 | 226 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF37-10A(W) | 10 | 145 | 6.3 | 222.4 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF45-7A(W) | 7 | 102 | 7.7 | 271.8 | 45 | 60 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF45-8A(W) | 8 | 116 | 6.5 | 229.5 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF45-10A(W) | 10 | 145 | 6.8 | 240.1 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF55-7A(W) | 7 | 102 | 9.6 | 339 | 55 | 75 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF55-8A(W) | 8 | 116 | 8.8 | 310.7 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF55-10A(W) | 10 | 145 | 7.7 | 271.9 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2000 | |||||||
| RF75-7A(W) | 7 | 102 | 13.5 | 476.7 | 75 | 100 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF75-8A(W) | 8 | 116 | 13.3 | 469.6 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF75-10A(W) | 10 | 145 | 12.1 | 427.3 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 1900 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-7A(W) | 7 | 102 | 16.2 | 572 | 90 | 120 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 |
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-8A(W) | 8 | 116 | 15.6 | 550.9 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF90-10A(W) | 10 | 145 | 14.2 | 501.4 | Air Cooling | 70 | DN50 | 2160 | 1450 | 2200 | 2000 | ||
| Water Cooling | 63 | DN80 | 2180 | 1450 | 2200 | 2100 | |||||||
| RF110-7A(W) | 7 | 102 | 19.5 | 688.6 | 110 | 150 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 |
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF110-8A(W) | 8 | 116 | 19.2 | 678 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF110-10A(W) | 10 | 145 | 17.5 | 618 | Air Cooling | 69 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2700 | |||||||
| RF132-7A(W) | 7 | 102 | 23.5 | 829.8 | 132 | 175 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 |
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF132-8A(W) | 8 | 116 | 22.8 | 805.1 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF132-10A(W) | 10 | 145 | 20.5 | 723.9 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3700 | ||
| Water Cooling | 67 | DN80 | 2550 | 1650 | 2000 | 2800 | |||||||
| RF145-7A(W) | 7 | 102 | 23.9 | 844 | 145 | 195 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 |
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF145-8A(W) | 8 | 116 | 22.1 | 780.4 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 | ||
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF145-10A(W) | 10 | 145 | 20.5 | 723.9 | Air Cooling | 70 | DN80 | 4050 | 1650 | 2000 | 3800 | ||
| Water Cooling | 68 | DN80 | 2550 | 1650 | 2000 | 2900 | |||||||
| RF160-7A(W) | 7 | 102 | 28.5 | 1006.4 | 160 | 215 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5300 |
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF160-8A(W) | 8 | 116 | 26.4 | 932.3 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5300 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF160-10A(W) | 10 | 145 | 24.5 | 865.2 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5300 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 2900 | |||||||
| RF200-7A(W) | 7 | 102 | 36.1 | 1274.8 | 200 | 270 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF200-8A(W) | 8 | 116 | 33.9 | 1197.1 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF200-10A(W) | 10 | 145 | 30.8 | 1087.6 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5400 | ||
| Water Cooling | 67 | DN80 | 3100 | 1650 | 2000 | 4000 | |||||||
| RF250-7A(W) | 7 | 102 | 45.2 | 1596.2 | 250 | 350 | Air Cooling | 75 | DN80 | 5040 | 1650 | 2100 | 5500 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF250-8A(W) | 8 | 116 | 43.4 | 1532.6 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF250-10A(W) | 10 | 145 | 38.8 | 1370.2 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4100 | |||||||
| RF275-7A(W) | 7 | 102 | 46.8 | 1652.7 | 275 | 370 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF275-8A(W) | 8 | 116 | 43.5 | 1536.1 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF275-10A(W) | 10 | 145 | 41.5 | 1465.5 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5500 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4200 | |||||||
| RF315-7A(W) | 7 | 102 | 53 | 1871.6 | 315 | 420 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 |
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
| RF315-8A(W) | 8 | 116 | 51.5 | 1818.7 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
| RF315-10A(W) | 10 | 145 | 49.5 | 1748 | Air Cooling | 76 | DN80 | 5040 | 1650 | 2100 | 5800 | ||
| Water Cooling | 65 | DN80 | 3100 | 1650 | 2000 | 4400 | |||||||
How to Repair and Maintain an Air Compressor
A compressor is a device used to move air from one place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.
Positive displacement
Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are two types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the two types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.
oil free
If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in one minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.
double acting
A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.
fuel tank pressure switch
You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.
energy source
The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require three separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require three separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.


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Product Description
H2o CZPT Lubricated Industrial 8bar ten Bar 13bar 5.5 kw to 250kw long lasting magnet variable frequency Oil Cost-free Rotary Screw Air Compressor
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Kinds of Air Compressors
There are a lot of kinds of Air Compressors accessible on the industry. Find out which one is correct for your demands and what helps make one particular much better than one more. Uncover out far more about Single-stage versions, Oil-cost-free types, and Reduced-noise versions. This post will make clear these varieties and support you determine which a single you require. You can also understand about Air Compressors that have solitary-phase compressors. If you are looking for a high-quality compressor, this report will help you choose a unit.
Air Compressors
Air compressors perform by forcing atmospheric air through an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder via an exhaust valve. A single of the most frequent varieties of air compressor is the reciprocating kind. One more type of compressor is a solitary-phase piston. These kinds of compressors compress air in 1 stroke – equivalent to the complete rotation of the piston’s crankshaft.
These products change electrical or mechanical strength into pressurized air. When air is compressed, its volume decreases, increasing its stress. Air compressors usually have a minimal pressure of 30 bars. The decrease stress band is the variety of air strain. Most compressors are managed individually, but network controls can be used to interconnect multiple compressors. This type of controller will not function for all varieties of compressors. There are other types of air compressors that can talk with each other.
Compressed air has a number of applications in all types of industries. In agriculture, it can energy pneumatically powered materials dealing with machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also utilised in the pharmaceutical sector for mixing tanks, packaging, and conveyor techniques. Portable air compressors, which can be run by diesel gas, are often utilized at remote drilling internet sites. Portable air compressors are also generally utilised in oil and gas. They can be utilised to remotely manage valves and set up reactor rods.
Whether or not you use an air compressor for agricultural functions or in a producing environment, there are some attributes to consider when picking an air compressor for your requirements. A good compressor will have a security gadget. It will routinely shut off the enter air and output air after ample compressing has been reached. These attributes will assist your air compressor stay efficient and defend your gear. The security unit is an essential function of any air compressor to improve its general performance.
Vane air compressors are the most common kind. They are usually smaller and less potent than reciprocating piston compressors, so you can use 1 of these for programs that are below a hundred horsepower. The vane air compressors have low compression ratios and higher capacities, but they are generally restricted to low-energy apps. Vane compressors are likely to operate hot, and they normally have a low compression ratio. It is critical to select the correct oil viscosity for your compressor.
One-stage models
When evaluating single-stage air compressors, appear for the time period “levels.” Multi-stage compressors use two phases and can deal with more ability and stress. A single stage requires pressurizing air using a piston and a reduce-stress cylinder. This compressed air is then moved to a storage tank. Solitary-stage models are inclined to be more vitality-productive than their two-stage counterparts. But if you never want a large-stress cylinder, a one-stage air compressor can be the very best option.
Even though single-stage air compressors make less electricity, they can generate enough air to energy pneumatic tools and other pneumatic tools. These solitary-stage units are most helpful for scaled-down-scale house assignments and Do-it-yourself tasks. For more industrial purposes, a dual-stage product is the very best option. But if you happen to be in a hurry, a solitary-stage device might be sufficient. Ultimately, it relies upon on what you prepare to do with the air compressor.
Solitary-stage air compressors attribute a single cylinder, a single piston stroke for every single revolution of pressurized air. One-stage compressors are usually smaller sized and a lot more compact, producing them a good choice for smaller work environments. Their cfm potential (cubic feet for every moment) is an crucial indicator of functioning capability. If you plan to use multiple pneumatic equipment, you will possibly require a increased cfm product. Equally, the horsepower of one-phase compressors implies its doing work capacity. One horsepower moves 550 kilos for every foot for each moment.
Multi-stage air compressors are typically much more pricey and more power-efficient than single-stage units, but they can offer you larger air circulation prices. Even though they might be a lot more sophisticated, they can reduce standard operating costs. If you plan on utilizing your air compressor for industrial or industrial use, a dual-stage model may possibly be the very best option. Even so, if you happen to be organizing to use the air compressor for mass manufacturing, a one-phase model may be the best option.
Single-stage air compressors have the exact same piston dimension and variety of inlets, whilst dual-phase types have a more compact first piston and a significantly longer 2nd piston. Each have a cooling tube in between the two pistons to lessen the air temperature prior to the second round of compression. The single-stage product is usually modest and portable, whilst the double-phase air compressor is stationary. These compressors can the two be stationary and large.
Lower-sound versions
In spite of its title, reduced-sound models of air compressors are not all the identical. The noise level of a compressor can be impacted by several elements, like the electricity supply and proximity to the device. Reciprocal compressors are normally louder than electric powered kinds simply because of their several relocating elements. By distinction, rotary-screw and scroll compressors have less moving areas and are quieter.
The sound level of a fuel-run air compressor can be very higher, producing it unsuitable for use indoors. To fight this issue, you can choose an electric model. The sound level of a compressor is mainly caused by motor friction. The go over of a piston is also a key aspect in noise, as pistons with minimum addresses will generate a lot of noise. Beforehand, oil was necessary for a quiet compressor. Nevertheless, this has changed many thanks to the medical industry’s need for oil-cost-free models.
The Nuair EC28M Tranquil Air Compressor is an additional model that features silent procedure. This air compressor helps make 59dB of sound. This level is reduced enough to allow you to have on typical discussions while it cycles. In addition, this compressor has an industrial oil-totally free pump and a 2.8 Amp direct-drive induction motor. These two attributes make it a fantastic option for companies.
Reduced-sound types of air compressors are obtainable for the building market. However, these compressors are not automatically lower-quality, which is why you should take into account the sound amount of your air instrument prior to getting one. The professionals at Mid-Tech can suggest the reduced-noise designs for your specific application and room. Noise can distract folks who operate in close proximity to the air compressor. That is why a lot of firms now choose for these designs.
Oil-free of charge models
A amount of oil-totally free designs of air compressors are accessible, but what makes them specific? Oil-free of charge compressors will not contain oil, so they’re lubricated by grease rather. They are a good option if you are doing work with a small compressor and will not want to risk harmful it. On the other hand, oil-free of charge types do produce significant amounts of heat, which can hurt the compressor. Higher pressure can grind the compressor from itself, or even warp it.
A few words of information can support you decide on the greatest oil-totally free air compressor for your requirements. For example, a compressor’s horsepower is a measurement of how strong the motor is. Larger horsepower implies a greater PSI or ACFM. You can also use the ACFM to assess the two. Scroll technologies is a modern air compression technique that employs a stationary and cell spiral. This reduces the volume of air in the compressor by directing it to the middle.
Buying an oil-free air compressor isn’t going to have to be a overwhelming task, even though. A very good distributor can recommend you on what sort of oil-free of charge air compressor is correct for you. This way, you can preserve cash and get pleasure from peace of mind whilst making use of your air compressor. And, of system, the best way to get a fantastic deal on an air compressor is to converse to a distributor who is experienced about the items available.
An oil-free air compressor is a fantastic choice for companies that are sensitive to the contamination of air. For illustration, in the pharmaceutical and foods business, a minuscule oil could spoil a solution or even damage generation equipment. Oil-cost-free air compressors usually have reduced upkeep fees than oil-flooded versions due to the fact there are much less transferring elements. Because of this, oilless air compressors demand fewer upkeep and could nonetheless want to be changed from time to time.
A few positive aspects of an oil-free of charge air compressor in excess of an oil-lubricated 1 contain reduce noise ranges. Oil-free of charge air compressors are likely to be considerably less noisy and operate much more quietly than oil-injected types, but you must nevertheless carefully weigh the professionals and downsides prior to generating a selection. Also, contemplate how considerably you use your air compressor before picking a model. The professionals outweigh the negatives. In the end, you are going to be happy you chose an oil-free of charge air compressor.

