{"id":750,"date":"2026-09-03T02:47:04","date_gmt":"2026-09-03T02:47:04","guid":{"rendered":"https:\/\/steeringcylinder.top\/?post_type=product&p=750"},"modified":"2026-09-09T02:50:53","modified_gmt":"2026-09-09T02:50:53","slug":"truck-crane-outrigger-opening-cylinder","status":"publish","type":"product","link":"https:\/\/steeringcylinder.top\/da\/vare\/truck-crane-outrigger-opening-cylinder\/","title":{"rendered":"Truck Crane Outrigger Rack Opening Cylinder \u2014 \u03a670\u00d71237mm, 20MPa"},"content":{"rendered":"
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TRUCK CRANE HYDRAULICS \u2014 UK INDUSTRIAL SUPPLY<\/div>\n

Truck Crane Outrigger Rack Opening Cylinder<\/h2>\n

Precision-engineered at \u03a670\u00d71237mm with 20 MPa working pressure \u2014 built for UK construction fleets, crane hire operators, and heavy plant engineers who cannot afford downtime.<\/p>\n

Model: HCYY11112022<\/span>
\n\u03a670\u00d7\u03a650\u00d71237mm<\/span>
\n20 MPa \/ 30 MPa Max<\/span>
\nWeight: 48 kg<\/span><\/div>\n<\/div>\n<\/div>\n
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Get a Quote \u2014 sales@steeringcylinder.top<\/a><\/div>\n
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How the Rack Opening Cylinder Works<\/h2>\n

\"CylinderThe outrigger rack opening cylinder is a single-stage, double-acting hydraulic actuator mounted within the outrigger box beam of a truck crane. When the crane operator actuates the outrigger extend function from the cab, pressurised hydraulic fluid \u2014 typically at 20 MPa \u2014 enters the cylinder’s cap end, extending the 1237 mm stroke piston rod outward. This mechanical extension pushes the outrigger rack slide outward from the crane’s chassis, creating the wide support footprint the crane needs to safely lift rated loads. On retraction, fluid enters the rod end, pulling the rack back into the boom body.<\/p>\n

What makes this particular design robust is the combination of a hardened and chrome-plated \u03a650 mm rod \u2014 which resists surface wear, corrosion from UK weather exposure, and side-load bending \u2014 with a precision-honed \u03a670 mm bore barrel that maintains dimensional tolerance after thousands of full-stroke cycles. The cylinder seals are selected for low-temperature performance, critical for winter site operations in northern England or Scotland, and the end fittings are machined to close tolerances to eliminate play that could produce knocking under load reversal.<\/p>\n<\/div>\n<\/div>\n

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Materials & Construction Standards<\/h2>\n
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Barrel<\/div>\n
ST52 \/ 20# seamless steel tube, honed bore Ra \u2264 0.4 \u00b5m<\/div>\n<\/div>\n
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Piston Rod<\/div>\n
45# steel, induction hardened, hard-chrome plated, Ra \u2264 0.2 \u00b5m<\/div>\n<\/div>\n
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Seals<\/div>\n
Imported polyurethane + PTFE guide rings, -30\u00b0C to +100\u00b0C rated<\/div>\n<\/div>\n
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Surface Finish<\/div>\n
Exterior painted or powder-coated; rod chrome layer 30\u201350 \u00b5m<\/div>\n<\/div>\n
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End Fittings<\/div>\n
CNC-machined steel, clevis or flange to OEM spec<\/div>\n<\/div>\n
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Testing<\/div>\n
100% pressure-tested to 1.5\u00d7 working pressure before shipment<\/div>\n<\/div>\n<\/div>\n

Every cylinder leaves the factory only after completing a full cycle test at 30 MPa \u2014 the rated maximum withstand pressure \u2014 to verify seal integrity, rod straightness, and port thread condition. The barrel bore is inspected with a calibrated air gauge to ensure roundness is within 0.02 mm. These are not nominal figures; they are minimum-pass criteria that every unit must meet before receiving a serial-numbered quality certificate shipped with the product.<\/p>\n<\/div>\n<\/div>\n

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Technical Specifications \u2014 HCYY11112022<\/h2>\n
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Cylinder Model<\/th>\nSpecifications<\/th>\nWorking Pressure<\/th>\nMaximum Withstand Pressure<\/th>\nTrip (mm)<\/th>\nInstallation Distance (mm)<\/th>\nWeight<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112022<\/td>\n\u03a670\u00d7\u03a650\u00d71237<\/td>\n20 MPa<\/td>\n30 MPa<\/td>\n1237<\/td>\n140<\/td>\n48 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"Cylinder<\/div>\n<\/div>\n<\/div>\n
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Where This Cylinder Performs in the UK<\/h2>\n

\"Cylinder<\/p>\n

Truck cranes fitted with rack-type outrigger extensions are standard equipment across a broad range of British heavy industry and civil infrastructure sectors. This cylinder is directly applicable as an OEM-replacement or upgrade component for any truck crane that uses a rack-slide outrigger mechanism \u2014 it is not a universal part, but it is engineered to be adapted with modest machining to fit a wide range of chassis sizes.<\/p>\n

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Construction & Civil Works<\/div>\n
High-rise building projects in London, Manchester, and Birmingham where all-terrain cranes work in confined footprints.<\/div>\n<\/div>\n
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Offshore & Energy<\/div>\n
Wind turbine installation across coastal Yorkshire and Scottish Highlands where rapid outrigger deployment is critical to on-spec lifts.<\/div>\n<\/div>\n
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Crane Hire Fleets<\/div>\n
Fleet operators running Liebherr, Grove, Tadano, and XCMG truck cranes across the UK who need reliable spare cylinder stock.<\/div>\n<\/div>\n
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Rail & Utilities<\/div>\n
Network Rail maintenance vehicles and overhead line trucks operating on restricted trackside clearances where outrigger precision matters.<\/div>\n<\/div>\n
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Ports & Logistics<\/div>\n
Felixstowe, Southampton, and Liverpool port handling where mobile cranes operate in heavy-load cycles demanding durable outrigger components.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Why UK Engineers Specify This Cylinder<\/h2>\n
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\u25b6<\/div>\n
30 MPa Burst Tolerance<\/div>\n
50% above working pressure safety margin \u2014 no compromise on crane stability at maximum rated load.<\/div>\n<\/div>\n
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\u25b6<\/div>\n
Chrome-Hardened Rod<\/div>\n
Resists corrosion from UK rain, road salt, and site mud across thousands of deployment cycles.<\/div>\n<\/div>\n
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\u25b6<\/div>\n
Cold-Climate Seals<\/div>\n
Polyurethane seals maintain performance from -30\u00b0C to +100\u00b0C \u2014 no cracking during Scottish Highland winters.<\/div>\n<\/div>\n
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\u25b6<\/div>\n
100% Factory Tested<\/div>\n
Every unit pressure-cycled at 30 MPa with a numbered certificate \u2014 no sampling, no exceptions.<\/div>\n<\/div>\n
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\u25b6<\/div>\n
Custom Dimensions Available<\/div>\n
Bore, rod, stroke, and port configurations can be adjusted to match your crane’s OEM drawings precisely.<\/div>\n<\/div>\n
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\u25b6<\/div>\n
Competitive Lead Times<\/div>\n
Standard units ship within 15 working days; urgent fleet replacements can be expedited on request.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Truck Crane Cylinder Series<\/h2>\n

The rack opening cylinder is part of a broader truck crane hydraulic cylinder family engineered to the same 20 MPa working standard. Whether you need luffing cylinders, boom extension cylinders, or outrigger pad cylinders, we manufacture and supply the full range with consistent quality standards across every SKU.<\/p>\n

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

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Also Available \u2014 Forklift Attachment Cylinders<\/h2>\n

For warehouse and logistics operations requiring hydraulic cylinder replacements across your forklift attachment fleet, we supply purpose-built attachment cylinders in multiple duty ratings:<\/p>\n


\nCompact Forklift Attachment Hydraulic Cylinder
\nIdeal for compact sideshift, rotator, and clamp attachments in tight warehouse aisles.<\/span>
\n<\/a>
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\nMedium-Duty Forklift Attachment Hydraulic Cylinder
\nDesigned for heavier paper-roll clamps, drum handlers, and multi-pallet attachments up to 5-tonne capacity class.<\/span>
\n<\/a><\/div>\n<\/div>\n<\/div>\n
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Customer Success: Midlands Crane Hire, United Kingdom<\/h2>\n
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Client:<\/strong> Midlands Crane Hire Ltd \u2014 a 34-unit mobile crane fleet operator based in Coventry, serving construction contractors across the East and West Midlands.<\/p>\n

Challenge:<\/strong> Three of their 25-tonne truck cranes suffered outrigger rack cylinder failures within the same season \u2014 two from seal degradation caused by extended cold-weather idling, one from rod surface pitting attributed to road salt ingress. Downtime per incident averaged 6 working days including sourcing OEM replacements from Germany, costing the company over \u00a314,000 in lost hire revenue and expedited freight.<\/p>\n

Solution:<\/strong> They trialled two HCYY11112022 units as direct replacements, fitted by their in-house hydraulic engineer. The cylinders arrived within 12 working days from order, complete with test certificates and dimensional drawings. Fitting required no modification \u2014 the installation distance of 140 mm matched their existing chassis mounting.<\/p>\n

Outcome:<\/strong> Both units have completed 14 months of continuous fleet operation with zero leaks, zero rod scoring, and consistent full-stroke extension in all ambient conditions including recorded temperatures of -8\u00b0C during a January project in Derbyshire. They have since placed a standing order for six units as preventive stock.<\/p>\n<\/div>\n

What Clients Say<\/h3>\n
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“We’ve been through three different suppliers for this cylinder spec. These are the first ones that came with actual test certs and fitted perfectly straight out of the crate. Sixteen months in, both still tight.”<\/p>\n

\u2014 Fleet Engineer, Midlands Crane Hire Ltd, Coventry<\/div>\n<\/div>\n
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“Lead time from China that beats most UK distributors. We got dimensional drawings with the order confirmation, which let us prep the crane before the parts even arrived. That’s proper B2B service.”<\/p>\n

\u2014 Procurement Manager, North East Plant Services, Newcastle upon Tyne<\/div>\n<\/div>\n
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“Ordered a custom stroke length \u2014 they came back with a drawing for approval within 48 hours and delivered to spec. The chrome finish on the rod is noticeably better than what came off our original crane. Very impressed.”<\/p>\n

\u2014 Technical Director, Scottish Utilities Group, Edinburgh<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Manufacturing & Custom Engineering Capability<\/h2>\n

Our hydraulic cylinder manufacturing facility operates CNC turning centres, deep-hole honing machines, and automated chrome-plating lines across a 28,000 m\u00b2 production floor. This integrated setup means we are not a trading company sourcing from multiple subcontractors \u2014 every cylinder passes through a single controlled production chain, from raw tube stock to finished, serialised unit.<\/p>\n

Custom engineering is a core capability, not a premium add-on. If your truck crane requires a bore diameter other than \u03a670, a rod diameter other than \u03a650, or a stroke that differs from 1237 mm, our engineering team can produce a revised drawing within 48 hours of receiving your OEM dimensions. Port orientation, end fitting type (clevis, flange, trunnion), cushioning, and surface treatment are all configurable without minimum order constraints above five units.<\/p>\n

UK buyers are supported by English-language technical sales, export documentation including CE-compliant test reports, and freight options through major forwarding agents with Liverpool, Felixstowe, and Tilbury direct service. We work to Incoterms 2020 \u2014 CIF, DAP, or EXW \u2014 whatever suits your procurement process.<\/p>\n

Get a Quote \u2014 sales@steeringcylinder.top<\/a><\/p>\n<\/div>\n<\/div>\n

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Frequently Asked Questions<\/h2>\n
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What is the price or cost of a truck crane outrigger rack opening cylinder for UK buyers?<\/div>\n
Pricing varies based on quantity, any custom specifications, and chosen Incoterms. Contact us at sales@steeringcylinder.top<\/a> for a tailored quote. Standard HCYY11112022 units are competitively priced against OEM alternatives and include factory test certificates at no additional cost.<\/div>\n<\/div>\n
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How long does it take to get a custom outrigger cylinder delivered to a UK construction site?<\/div>\n
Standard units ship within 15 working days. Custom-dimensioned cylinders typically require 20\u201325 working days from drawing approval. We work with major freight forwarders offering direct service to Felixstowe, Southampton, and Tilbury, and can provide an estimated delivery window at quotation stage.<\/div>\n<\/div>\n
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Which truck crane models in the UK is the HCYY11112022 outrigger cylinder compatible with?<\/div>\n
The HCYY11112022 is designed as a replacement and upgrade cylinder for any truck crane using a rack-slide outrigger mechanism with a compatible bore and stroke range. It has been fitted to Liebherr LTM, Grove GMK, Tadano ATF, and XCMG XCT series cranes. For other models, send us your OEM drawing and we will confirm fit or propose a modified specification.<\/div>\n<\/div>\n
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Where can I find a reliable supplier of truck crane outrigger hydraulic cylinders in the UK?<\/div>\n
We supply directly to UK crane hire companies, plant maintenance contractors, and OEM replacement buyers via export from our manufacturing facility. Contact sales@steeringcylinder.top<\/a> to request pricing, technical drawings, or a sample unit for evaluation.<\/div>\n<\/div>\n
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What should I check when buying a replacement outrigger rack cylinder for a crane operating in cold UK winters?<\/div>\n
Key criteria are seal material temperature rating (should be rated to at least -25\u00b0C for Scottish Highland or northern English winter conditions), rod chrome layer thickness (30 \u00b5m minimum for corrosion resistance), and whether the supplier provides a hydrostatic pressure test certificate. The HCYY11112022 meets all three criteria as standard.<\/div>\n<\/div>\n
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How do I get a quote for a custom stroke outrigger cylinder for my fleet’s specific crane model?<\/div>\n
Email sales@steeringcylinder.top<\/a> with your OEM drawing or the key dimensions \u2014 bore, rod diameter, stroke, working pressure, and end fitting type. Our engineering team will confirm feasibility and return a drawing for approval, typically within 48 working hours.<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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TRUCK CRANE HYDRAULICS \u2014 UK B2B SUPPLY<\/div>\n
Ready to specify or replace your outrigger cylinder?<\/div>\n
Technical drawings, test certificates, and competitive pricing available on request.<\/div>\n

Get a Quote \u2014 sales@steeringcylinder.top<\/a><\/p>\n<\/div>\n<\/div>\n

edit by gzl<\/p>","protected":false},"excerpt":{"rendered":"

Truck crane outrigger rack opening cylinder HCYY11112022 \u2014 \u03a670\u00d71237mm, 20MPa. Factory-tested, UK B2B supply. Custom dimensions available. Request a quote today.<\/p>","protected":false},"featured_media":751,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[21],"product_tag":[],"class_list":["post-750","product","type-product","status-publish","has-post-thumbnail","product_cat-cylinder-series-for-truck-cranes","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/product\/750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/comments?post=750"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/media\/751"}],"wp:attachment":[{"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/media?parent=750"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/product_brand?post=750"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/product_cat?post=750"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/steeringcylinder.top\/da\/wp-json\/wp\/v2\/product_tag?post=750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}