{"id":478,"date":"2026-03-20T07:46:21","date_gmt":"2026-03-20T07:46:21","guid":{"rendered":"https:\/\/oxygen-compressor-cylinder-filling.com\/?post_type=product&p=478"},"modified":"2026-03-20T09:02:27","modified_gmt":"2026-03-20T09:02:27","slug":"aerial-work-vehicle-steering-cylinder","status":"publish","type":"product","link":"https:\/\/oxygen-compressor-cylinder-filling.com\/zh\/product\/aerial-work-vehicle-steering-cylinder\/","title":{"rendered":"EP-HCYY11112012 \u9ad8\u7a7a\u4f5c\u4e1a\u8f66\u8f86\u8f6c\u5411\u6cb9\u7f38"},"content":{"rendered":"

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Hydraulic Cylinder \u00b7 Aerial Work Platform<\/p>\n

EP-HCYY11112012
\nAerial Work Vehicle
\nSteering Cylinder<\/h1>\n

\u03a663 \u00d7 \u03a635 \u00d7 320 mm \u00b7 21 MPa \u00b7 32 MPa withstand \u00b7 540 mm CTC \u00b7 13 kg<\/p>\n<\/div>\n

Request a Quote<\/a>
\nView Specs<\/a><\/div>\n<\/div>\n
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Working Pressure<\/p>\n

21 MPa<\/p>\n

210 bar continuous<\/p>\n<\/div>\n

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Max Withstand<\/p>\n

32 MPa<\/p>\n

100% hydro-tested<\/p>\n<\/div>\n

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Installation CTC<\/p>\n

540 mm<\/p>\n

Pin centre-to-centre<\/p>\n<\/div>\n

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Unit Weight<\/p>\n

13 kg<\/p>\n

One-person field swap<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\"EP-HCYY11112012<\/p>\n<\/div>\n

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What Is the HCYY11112012 Aerial Work Vehicle Steering Cylinder<\/h2>\n

and What Does It Do?<\/h2>\n

The HCYY11112012 aerial work vehicle steering cylinder<\/strong> is a double-acting hydraulic cylinder that drives the steering axle of self-propelled elevated work platforms \u2014 articulating boom lifts, telescopic boom lifts, rough-terrain scissor lifts, and drive-capable vertical mast lifts. It receives hydraulic pressure from the machine’s steering control circuit and converts it to linear force at the steering knuckle, pivoting the drive wheel through its turning arc under the operator’s command.<\/p>\n

The HCYY11112012 operates at a continuous working pressure of 21 MPa (210 bar)<\/strong> \u2014 the elevated pressure range that aerial platform steering circuits require because the machine’s raised centre of gravity creates significantly higher side-load on the steering axle than ground-level equipment faces. The withstand rating of 32 MPa<\/strong> provides a 1.52\u00d7 safety factor above the working point, covering pressure spikes from sharp steering inputs and uneven terrain travel at height.<\/p>\n

With a \u03a663 mm bore<\/strong>, \u03a635 mm chrome-plated rod<\/strong>, and a 320 mm stroke<\/strong>, the cylinder produces the steering force required for machines in the 6,000\u201314,000 kg operating weight range \u2014 covering the majority of self-propelled boom lifts used in construction, industrial maintenance, and civil infrastructure work across Canada and Australia. The 540 mm CTC<\/strong> pin distance and 13 kg<\/strong> weight enable direct fitment and one-person field installation during scheduled maintenance or unplanned replacement.<\/p>\n<\/div>\n

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Technical Specifications<\/h2>\n

\u2014 HCYY11112012Aerial Work Vehicle Steering Cylinder<\/h2>\n

Confirm CTC (540 mm), bore (\u03a663), rod bore, and pin sizes against your machine’s service manual before ordering. Custom stroke and bore available \u2014 provide your OEM part number or dimension drawing.<\/p>\n

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Parameter<\/th>\nValue<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
Cylinder Model<\/td>\nHCYY11112012<\/td>\nOEM part number<\/td>\n<\/tr>\n
Full Specification<\/td>\n\u03a663 \u00d7 \u03a635 \u00d7 320<\/td>\nBore \u00d7 Rod \u00d8 \u00d7 Stroke (mm)<\/td>\n<\/tr>\n
Bore Diameter<\/td>\n\u03a663 mm<\/td>\nCNC-bored, H8 tolerance fit<\/td>\n<\/tr>\n
Rod Diameter<\/td>\n\u03a635 mm<\/td>\nHard chrome plated, min. 25 \u03bcm<\/td>\n<\/tr>\n
Stroke<\/td>\n320 mm<\/td>\nFull extend-to-retract travel<\/td>\n<\/tr>\n
Working Pressure<\/td>\n21 MPa (210 bar)<\/td>\nContinuous rated<\/td>\n<\/tr>\n
Max Withstand Pressure<\/td>\n32 MPa (320 bar)<\/td>\n1.52\u00d7 rated \u2014 100% hydro-tested<\/td>\n<\/tr>\n
Trip (Stroke)<\/td>\n320 mm<\/td>\nPer original OEM drawing<\/td>\n<\/tr>\n
Installation Distance<\/td>\n540 mm<\/td>\nPin centre-to-centre (CTC)<\/td>\n<\/tr>\n
Unit Weight<\/td>\n13 kg<\/td>\nPer unit, unpackaged<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Fitment check:<\/strong> Even a 3 mm deviation from 540 mm CTC alters effective steering angle at full lock \u2014 creating unequal left\/right turning radii detectable as handling imbalance. Verify against your machine’s service manual before ordering.<\/div>\n<\/div>\n

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Why the HCYY11112012 Aerial Work Vehicle Steering Cylinder<\/h2>\n

Is the Correct Specification<\/h2>\n

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Pressure Rating<\/p>\n

21 MPa Continuous \/ 32 MPa Withstand<\/p>\n

Aerial platforms develop higher instantaneous steering loads than ground equipment because an elevated mast shifts the centre of mass over the axle. The 21 MPa working point and 32 MPa burst margin together handle full-load elevated steering \u2014 the 1.52\u00d7 safety factor matches the withstand requirement of most AWP OEM steering circuit specifications.<\/p>\n<\/div>\n

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Rod Protection<\/p>\n

\u03a635 mm Hard Chrome \u00b7 Min. 25 \u03bcm Deposit<\/p>\n

Aerial platform steering cylinders operate outdoors year-round in Canadian and Australian weather \u2014 rain, salt air, freeze-thaw cycles, and UV. The hard-chrome rod surface prevents the pitting and corrosion that cause rod seal failure and oil weeping in machines stored outside between contracts. Minimum 25 \u03bcm chrome deposit is the threshold for meaningful corrosion resistance under these conditions.<\/p>\n<\/div>\n<\/div>\n

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Fitment Accuracy<\/p>\n

540 mm CTC \u2014 Drop-in OEM Replacement<\/p>\n

The 540 mm pin CTC matches the original mounting envelope for pin-in, pin-in installation without bracket modification. Dimensional tolerances are held to \u00b10.4 mm across production batches \u2014 consistent enough for fleet operators replacing multiple machines from the same stock order without individual pre-measurement.<\/p>\n<\/div>\n

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Field Maintenance<\/p>\n

13 kg \u2014 Single-Technician Swap<\/p>\n

At 13 kg, the cylinder can be lifted and aligned by one technician during pin installation \u2014 important on machines where steering axle access clearance prevents use of a mechanical aid. An experienced technician can complete the replacement in under 90 minutes with standard hand tools, minimising machine downtime during peak season.<\/p>\n<\/div>\n<\/div>\n

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Quality Assurance<\/p>\n

100% Hydrostatic Test \u00b7 ISO 9001 \u00b7 CE<\/p>\n

Every unit \u2014 not a sample \u2014 is individually pressure-tested at 32 MPa before shipment. Pressure test report issued with each cylinder. ISO 9001:2015 manufacturing certificate and CE declaration of conformity ship with every order. EN 10204 3.1 material certificates available on request for site safety inspection requirements.<\/p>\n<\/div>\n

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Bore Precision<\/p>\n

\u03a663 mm CNC-Bored \u00b7 Ra 0.2\u20130.4 \u03bcm Finish<\/p>\n

Barrel bore is roller-finished to Ra 0.2\u20130.4 \u03bcm surface roughness after CNC boring. This specific roughness range maximises seal contact area and minimises internal leakage across the cylinder’s full service life \u2014 preventing the steering drift that builds gradually as bore finish degrades in lower-quality cylinders.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Where the HCYY11112012 Is Specified<\/h2>\n

The aerial work vehicle steering cylinder<\/strong> is used wherever a self-propelled elevated platform requires active hydraulic steering \u2014 independent of platform height or load position.<\/p>\n