{"id":1353,"date":"2026-09-08T02:20:22","date_gmt":"2026-09-08T02:20:22","guid":{"rendered":"https:\/\/boom-cylinders.com\/?post_type=product&p=1353"},"modified":"2026-09-08T03:33:20","modified_gmt":"2026-09-08T03:33:20","slug":"steering-cylinder-hcyy11112004","status":"publish","type":"product","link":"https:\/\/boom-cylinders.com\/el\/product\/steering-cylinder-hcyy11112004\/","title":{"rendered":"Aerial Work Vehicle Steering Cylinder (125mm Stroke)"},"content":{"rendered":"
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Aerial Work Vehicle \u00b7 Hydraulic Steering<\/span><\/div>\n

Aerial Work Vehicle Steering Cylinder \u2014 125mm Stroke<\/h2>\n

Precision hydraulic steering for mobile elevated work platforms, boom lifts, and scissor lifts. Engineered to UK and international safety standards, with full custom fabrication capability for OEM and aftermarket supply.<\/p>\n

Get a Quote \u2014 sales@boom-cylinders.com<\/a><\/p>\n<\/div>\n

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What Is an Aerial Work Vehicle Steering Cylinder?<\/h2>\n

\"AerialAn aerial work vehicle steering cylinder is the hydraulic actuator responsible for directing wheel movement on mobile elevated work platforms, boom lifts, and scissor lifts. Unlike standard vehicle cylinders, these components must maintain precise directional authority under dynamic side-loading, vibration, and the uneven ground surfaces typically encountered on UK construction sites, utility maintenance jobs, and industrial plant environments. The cylinder converts hydraulic pressure into controlled linear force, connecting the hydraulic circuit to the steering knuckle or axle assembly to achieve repeatable, low-play steering response at height.<\/p>\n

The HCYY11112004 model \u2014 bore \u03a640mm, rod \u03a620mm, 125mm stroke \u2014 is purpose-designed for compact aerial platforms where tight installation envelopes demand compact actuator geometry without sacrificing load capacity. Operating at a rated working pressure of 20 MPa with a maximum withstand pressure of 30 MPa, it handles the stresses of real-world platform manoeuvring with a safety margin that UK plant operators and fleet managers can rely on.<\/p>\n<\/div>\n<\/div>\n

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Why This Steering Cylinder Outperforms the Field<\/h2>\n
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\u26ed<\/div>\n

High-Pressure Rated Seals<\/h3>\n

Quad-ring and wiper seal assemblies rated to 30 MPa burst pressure prevent leakage during sudden load spikes \u2014 a critical requirement on rough-terrain platforms operating across UK industrial sites.<\/p>\n<\/div>\n

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\ud83d\udd27<\/div>\n

Precision-Honed Bore<\/h3>\n

The \u03a640mm bore is finished to Ra 0.4 \u00b5m, delivering consistent oil-film retention and reducing internal friction \u2014 translating directly into smoother steering feel and extended seal service life across repeated duty cycles.<\/p>\n<\/div>\n

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\u2696<\/div>\n

Compact 125mm Stroke<\/h3>\n

Designed for tight chassis envelopes found on compact scissor lifts and mini boom lifts, the 125mm stroke delivers the full steering lock angle demanded by MEWP design standards without requiring structural re-design of the axle carrier.<\/p>\n<\/div>\n

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\ud83d\udee0<\/div>\n

Corrosion-Resistant Chrome Rod<\/h3>\n

The \u03a620mm piston rod is hard-chrome plated to a minimum 20 \u00b5m thickness, then ground and polished. This resists the salt-spray and moisture exposure typical of UK outdoor and coastal infrastructure maintenance work.<\/p>\n<\/div>\n

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400mm Installation Distance<\/h3>\n

The 400mm pin-to-pin installation distance aligns with the common axle geometry of European and Chinese-manufactured compact platforms, allowing direct-fit replacement without bracket modification on compatible machines.<\/p>\n<\/div>\n

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Lightweight at 2.8 kg<\/h3>\n

At just 2.8 kg, this steering cylinder contributes minimal unsprung mass \u2014 relevant for machine stability calculations required under EN 280 and PUWER regulations governing UK work-at-height equipment design and commissioning.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Specification<\/h2>\n

The table below reproduces the full manufacturer datasheet for the HCYY11112004 steering cylinder, exactly as issued. All measurements are in millimetres unless otherwise stated. Pressure values are in MPa. Weight is in kilograms.<\/p>\n

\"HCYY11112004<\/div>\n
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Cylinder Model<\/th>\nSpecifications (Bore x Rod x Stroke)<\/th>\nWorking Pressure<\/th>\nMaximum Withstand Pressure<\/th>\nTrip (mm)<\/th>\nInstallation Distance (mm)<\/th>\nWeight<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112004<\/td>\n\u03a640 x \u03a620 x 125<\/td>\n20 MPa<\/td>\n30 MPa<\/td>\n125<\/td>\n400<\/td>\n2.8 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n
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Operating Principle, Materials & Application Environments<\/h2>\n
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\u2699 Operating Principle<\/h3>\n

Pressurised hydraulic fluid enters the cylinder through the port on the cap or rod end, depending on the intended steering direction. The pressure differential across the piston face \u2014 calculated as force = pressure x bore area \u2014 drives the rod to extend or retract. In a double-acting steering circuit, return oil is simultaneously expelled through the opposing port. This closed-loop action gives the operator proportional steering authority: the harder the circuit pressure, the stronger the steering force, up to the 20 MPa rated working limit. The integral end-cushioning design on both rod and cap ends dampens the piston at the end of its 125mm travel, absorbing kinetic energy that would otherwise produce impact loads on the mounting clevis or trunnion.<\/p>\n<\/div>\n

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\ud83d\udd28 Key Materials<\/h3>\n

The cylinder barrel is drawn from seamless cold-rolled steel tube, chosen for its consistent wall thickness and superior tensile strength. The piston rod is produced from C45E alloy steel, induction-hardened to 56\u201362 HRC at the surface before hard-chrome plating \u2014 a specification that resists side-load deflection under the lateral forces generated by crabbing or slewing manoeuvres on compact platforms. The piston itself is manufactured from high-strength ductile iron and fitted with bronze guide rings that distribute radial load without scoring the bore surface. All external faces receive an epoxy-polyurethane primer and topcoat, giving resistance to UV exposure and the wet site conditions common in the UK construction sector.<\/p>\n<\/div>\n

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\ud83c\udfd7 Typical Application Scenarios<\/h3>\n

The HCYY11112004 steering cylinder is most frequently specified for compact scissor lifts in the 6\u201312 metre working height class, articulated boom lifts with 4WD drive systems, and trailer-mounted access platforms used in UK telecommunications and street lighting maintenance. It is equally suited to narrow-aisle order pickers and rough-terrain personnel carriers deployed in warehouse and distribution hub environments across Greater London, the Midlands, and Northern England. For fleet operators maintaining mixed MEWP fleets, this cylinder’s standardised port sizing and installation geometry simplify stock management and reduce machine downtime during planned maintenance intervals.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Aerial Work Vehicle Cylinder Series<\/h2>\n

Beyond the HCYY11112004, our aerial work vehicle cylinder programme covers a full range of steering, tilt, levelling, and outrigger cylinders designed to cover compact through heavy-duty MEWP classes. The series image below illustrates the breadth of the range available for direct quotation.<\/p>\n

\"Full<\/div>\n<\/div>\n<\/div>\n
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Related Hydraulic Cylinder Products<\/h2>\n

For UK customers sourcing hydraulic cylinders for forklift attachments or handling equipment, the following products from our standard range may also be of interest. Both are available to order and dispatch from verified UK-accessible stock.<\/p>\n

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Forklift Attachment Cylinder<\/h3>\n

Bore \u03a690mm, 265mm stroke. Designed for sideshift, rotator, and push-pull forklift attachments requiring high radial load capability and precise travel control.<\/p>\n

View Product<\/a><\/p>\n<\/div>\n

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Forklift Attachment Cylinder<\/h3>\n

Bore \u03a6125mm, 200mm stroke. For heavier forklift attachment duty cycles, providing greater force output while maintaining compact overall body length.<\/p>\n

View Product<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Customer Success \u2014 Real Projects, Real Results<\/h2>\n
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UK \u00b7 MEWP Fleet \u00b7 2024<\/span>
\nNorthern England<\/span><\/div>\n

Case Study: Scissor Lift Fleet Overhaul \u2014 Yorkshire Plant Hire Group<\/h3>\n

A mid-size plant hire business based in Yorkshire managing a fleet of 47 compact scissor lifts \u2014 predominantly 8 to 10-metre working height machines from several Chinese and European manufacturers \u2014 contacted us after experiencing repeated steering cylinder failures causing unplanned downtime across their northern England hire depots. The original cylinders on twelve of the machines had developed rod seal leaks within 18 months of initial commissioning, attributed to bore finish variation in the OEM supply.<\/p>\n

We supplied an initial batch of 24 HCYY11112004 steering cylinders with chrome-rod upgrade and revised seal pack. Installation was completed in-house by their workshop team using our technical datasheet. After 14 months of tracked service across the refitted machines \u2014 covering approximately 3,200 machine-hours \u2014 no seal failures have been reported. The customer subsequently placed a standing blanket order for annual replacement stock at preferred pricing.<\/p>\n

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“The cylinders landed within ten days of our purchase order. The bore finish is visibly different to what we had before \u2014 you can see the oil film retention. Eighteen months in, every machine is still steering cleanly.”<\/p>\n

\u2014 Workshop Manager, Yorkshire Plant Hire Group (name withheld on request)<\/p>\n

\"Aerial<\/p>\n<\/div>\n<\/div>\n

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“We source hydraulic cylinders for our maintenance programme across a portfolio of 120 boom lifts in the UK market. Ever-Power’s lead time and documentation package \u2014 including full material certs \u2014 made the approvals process straightforward with our procurement team.”<\/p>\n

Senior Procurement Officer<\/p>\n

Facilities Management Firm \u00b7 London, UK<\/p>\n<\/div>\n

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“We specified custom rod-end thread sizes on four cylinders to match our proprietary steering linkage. Boom Cylinders confirmed the engineering drawing review and revised sample within three weeks \u2014 that kind of flexibility is rare from an overseas supplier at this price point.”<\/p>\n

Design Engineer<\/p>\n

MEWP Manufacturer \u00b7 West Midlands, UK<\/p>\n<\/div>\n

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“Operating in the utility sector, our platforms work in rain and coastal air year round. These cylinders have held up where the previous brand didn’t \u2014 the chrome rod shows no pitting after two full winter seasons out on the Scottish coast.”<\/p>\n

Equipment Coordinator<\/p>\n

Utility Infrastructure Contractor \u00b7 Scotland, UK<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Manufacturing Capability & Custom Fabrication<\/h2>\n

Every cylinder supplied through Boom Cylinders is manufactured at our vertically integrated production facility, covering raw material inspection through to pre-dispatch pressure testing at 1.5x rated working pressure. For UK OEM customers and large-scale fleet operators, our custom fabrication service addresses bore diameter, rod length, port configuration, end-fitting geometry, seal material, and surface treatment as independent variables \u2014 not package options.<\/p>\n

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\u0395\u03cd\u03c1\u03bf\u03c2 \u03b3\u03b5\u03ce\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2<\/h4>\n

From \u03a625mm to \u03a6320mm in standard steel, stainless, and chrome-molybdenum alloys.<\/p>\n<\/div>\n

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Seal Options<\/h4>\n

Standard NBR, HNBR for elevated temperatures, PTFE-lined for low-friction applications, and FKM for phosphate-ester fluid compatibility.<\/p>\n<\/div>\n

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Documentation<\/h4>\n

Material certs (EN 10204 3.1), hydrostatic test reports, dimensional inspection sheets, and CE declaration of conformity available on request.<\/p>\n<\/div>\n

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Lead Time<\/h4>\n

Standard catalogue: 7\u201314 days from confirmed order. Custom-engineered designs: 3\u20136 weeks from drawing sign-off, with sample submission before bulk dispatch.<\/p>\n<\/div>\n<\/div>\n

Get a Quote \u2014 sales@boom-cylinders.com<\/a><\/div>\n<\/div>\n<\/div>\n
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Answers to common questions from UK plant operators, fleet managers, and OEM engineers.<\/p>\n

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\nWhat is the correct aerial work vehicle steering cylinder for a compact scissor lift operating on UK construction sites? +<\/span><\/summary>\n
The HCYY11112004 \u2014 bore \u03a640mm, rod \u03a620mm, 125mm stroke \u2014 is the standard specification for compact scissor lifts in the 6\u201312 metre working height class. Its 400mm installation distance and 20 MPa working pressure rating align with the most common axle geometries and hydraulic system pressures found in this machine class. It is available for direct supply to UK addresses with full technical documentation.<\/div>\n<\/details>\n
\nHow much does an aerial work vehicle hydraulic steering cylinder cost for a UK fleet operator ordering in quantity? +<\/span><\/summary>\n
Pricing for UK fleet operators depends on order quantity, specification, and delivery terms. For a firm price and lead time, send your machine model, required quantity, and any drawing or dimensional requirements to sales@boom-cylinders.com<\/a>. Volume pricing and blanket-order arrangements are available for qualified fleet accounts.<\/div>\n<\/details>\n
\nWhere can I get a quote for custom-specification MEWP steering cylinders supplied to a UK address? +<\/span><\/summary>\n
You can request a custom-specification quote directly by emailing sales@boom-cylinders.com<\/a>. Include your bore and rod dimensions, stroke, working pressure, required end fittings, and any material certificate requirements such as EN 10204 3.1. We supply to UK addresses and can provide CE documentation to support PUWER compliance.<\/div>\n<\/details>\n
\nWhich seal material should I specify for a steering cylinder used in cold UK winter operating conditions? +<\/span><\/summary>\n
For UK winter conditions \u2014 typically 0\u00b0C to -10\u00b0C ambient during outdoor plant hire operations \u2014 HNBR seals are recommended over standard NBR. HNBR retains its elastic properties at lower temperatures, preventing the seal compression-set that leads to early leakage in cold-weather duty cycles. Specify your ambient temperature range when requesting a quote and we will confirm the appropriate seal pack.<\/div>\n<\/details>\n
\nWhen should I replace the steering cylinder on a boom lift or scissor lift operating in the UK? +<\/span><\/summary>\n
Replacement is indicated when you observe rod seal weeping, inconsistent steering response under steady hydraulic pressure, increased cylinder drift on a held position, or visible rod surface corrosion deeper than the chrome plating. Under PUWER regulations, UK plant operators should include cylinder condition in scheduled pre-use inspections and periodic thorough examinations. Proactive replacement at the first sign of seal seepage prevents secondary damage to the hydraulic circuit.<\/div>\n<\/details>\n
\nHow do I identify the correct replacement steering cylinder if I don’t have the original part number for my aerial work platform? +<\/span><\/summary>\n
Measure the bore diameter, rod diameter, and compressed (retracted) body length of the failed cylinder. Note the port thread size and end fitting type \u2014 clevis, trunnion, or spherical eye. Send these measurements along with photos of both ends to sales@boom-cylinders.com<\/a> and our engineers will identify the matching or closest compatible specification from our catalogue within one working day.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n
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Ready to order or need technical advice? Our engineers respond within one business day.<\/p>\n

\u2709 Contact Us \u2014 sales@boom-cylinders.com<\/a><\/p>\n<\/div>\n<\/div>\n

\u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03b1\u03c0\u03cc gzl<\/p>","protected":false},"excerpt":{"rendered":"

Aerial work vehicle steering cylinder HCYY11112004 \u2014 \u03a640\u00d7\u03a620\u00d7125mm, 20 MPa. Custom hydraulic cylinders for MEWP and scissor lifts. UK B2B supplier. Request a quote today.<\/p>","protected":false},"featured_media":1357,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1080],"product_tag":[],"class_list":["post-1353","product","type-product","status-publish","has-post-thumbnail","product_cat-cylinder-series-for-aerial-work-vehicle","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/product\/1353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/comments?post=1353"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/media\/1357"}],"wp:attachment":[{"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/media?parent=1353"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/product_brand?post=1353"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/product_cat?post=1353"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/boom-cylinders.com\/el\/wp-json\/wp\/v2\/product_tag?post=1353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}