{"id":871,"date":"2026-09-04T03:17:42","date_gmt":"2026-09-04T03:17:42","guid":{"rendered":"https:\/\/steeringcylinder.top\/?post_type=product&p=871"},"modified":"2026-09-04T06:46:27","modified_gmt":"2026-09-04T06:46:27","slug":"boom-angle-cylinder-hcyy11112005","status":"publish","type":"product","link":"https:\/\/steeringcylinder.top\/kk\/product\/boom-angle-cylinder-hcyy11112005\/","title":{"rendered":"Main Boom Angle Cylinder for Articulated Boom Lift \u03a655\u00d7\u03a650\u00d7506"},"content":{"rendered":"
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Aerial Work Vehicle Components<\/p>\n

Main Boom Angle Cylinder for Articulated Boom Lift<\/h2>\n

Model HCYY11112005 \u2014 \u03a655\u00d7\u03a650\u00d7506mm | 21MPa Working Pressure | Precision-engineered for articulated boom platforms operating across the UK construction, infrastructure, and industrial maintenance sectors.<\/p>\n

Get a Quote \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

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What Is a Main Boom Angle Cylinder?<\/h2>\n

\"MainThe main boom angle cylinder is a double-acting hydraulic actuator mounted at the pivot point between the lower and upper boom sections of an articulated boom lift. Its sole function \u2014 controlling the angle at which the main boom elevates \u2014 sounds simple until you consider the forces involved: a platform carrying operators and equipment at height, swinging through arcs that stress every weld and seal in the system. The HCYY11112005 model (\u03a655\u00d7\u03a650\u00d7506mm) is purpose-built to handle exactly this environment. With a 21MPa working pressure and a maximum withstand pressure of 26.5MPa, it is designed for the operational realities of UK construction sites, infrastructure projects, and industrial maintenance work \u2014 where equipment reliability is not optional.<\/p>\n

The cylinder’s 506mm trip gives the boom a precisely controlled elevation range, while the 1259.7mm installation distance ensures the geometry integrates cleanly with standard articulated boom platforms in the 12m\u201320m working height class. Weighing 32kg, it sits within the handling limits of a two-person maintenance team, which matters when servicing machines on congested job sites across London, Manchester, Birmingham, and the wider UK industrial belt.<\/p>\n<\/div>\n

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Why UK Equipment Operators Choose This Cylinder<\/h2>\n
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\ud83d\udd29<\/div>\n

High-Pressure Rated Sealing<\/p>\n

Operating comfortably at 21MPa with a safety ceiling of 26.5MPa, the seal stack handles pressure spikes common during rapid boom cycling without degradation.<\/p>\n<\/div>\n

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\u2699\ufe0f<\/div>\n

Precision-Honed Bore Finish<\/p>\n

The \u03a655mm bore and \u03a650mm rod are machined to tight cylindricity tolerances, ensuring smooth stroke motion and minimising side-load wear on the rod seal.<\/p>\n<\/div>\n

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\ud83d\udee1\ufe0f<\/div>\n

Corrosion-Resistant Rod Coating<\/p>\n

Chrome-plated rod surface with a minimum 20\u00b5m hard chrome layer protects against the corrosive, wet conditions typical of UK outdoor worksites throughout autumn and winter months.<\/p>\n<\/div>\n

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\ud83d\udcd0<\/div>\n

Drop-In Geometry Compatibility<\/p>\n

The 1259.7mm installation distance and standard clevis\/pin end fittings are designed to match OEM mounting points on major articulated boom platforms without modification.<\/p>\n<\/div>\n

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\ud83d\udd2c<\/div>\n

Full Test Certificate Available<\/p>\n

Each cylinder ships with a pressure test report. UK buyers requiring CE documentation or material certificates for PSSR compliance can request these at the quotation stage.<\/p>\n<\/div>\n

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\ud83d\udea2<\/div>\n

UK-Ready Export Packaging<\/p>\n

Cylinders are cleaned, port-capped, and packed in wooden export crates with foam padding rated for sea freight \u2014 reaching UK ports at Felixstowe, Southampton, and Tilbury without transit damage.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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How the Main Boom Angle Cylinder Works<\/h2>\n
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\"Articulated<\/p>\n

When the operator raises the boom, the machine’s hydraulic pump delivers pressurised fluid to the cap-end port of the angle cylinder. The pressure differential across the \u03a655mm piston face generates the extending force needed to push the rod outward, rotating the boom section upward around its pivot pin. Retraction routes high-pressure oil to the rod-end port, pulling the boom back down under controlled load.<\/p>\n

The \u03a650mm piston rod is manufactured from 45# medium-carbon steel, quench-and-tempered to a core hardness of HB229\u2013HB285, then ground to an Ra0.4\u00b5m surface finish before hard chrome plating. The cylinder barrel is cold-drawn seamless tube, honed to an Ra0.4\u00b5m bore finish that the piston seals \u2014 typically PU lip seals plus a PTFE guide ring \u2014 can run against without accelerated wear.<\/p>\n

A welded clevis on the barrel end and a threaded or pin-type rod eye on the rod end transmit the cylinder’s push\/pull force directly into the boom structure. This arrangement means any misalignment between the cylinder axis and the pivot arc is absorbed by the pin-clearance at both ends, protecting the rod seals from side loading \u2014 a common failure mode in inferior designs where the clevis geometry is off by even 0.5\u00b0.<\/p>\n<\/div>\n

Application Scenarios<\/h3>\n
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\ud83c\udfd7\ufe0f Building Construction
\nFacade access, steelwork fitting, and glazing installation on mid-rise projects across London and the South East.<\/span><\/div>\n
\u26a1 Utilities & Infrastructure
\nOverhead cable maintenance, street lighting servicing, and bridge inspection work for local councils and Network Rail contractors.<\/span><\/div>\n
\ud83c\udfed Industrial Plant Maintenance
\nServicing elevated process equipment, roof structures, and internal rafters in manufacturing facilities throughout the Midlands and North.<\/span><\/div>\n
\ud83c\udfad Events & Film Production
\nCamera platforms, rigging access, and temporary structures for UK film studios and live event production companies.<\/span><\/div>\n<\/div>\n<\/div>\n

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Technical Specification<\/h2>\n

The table below lists the full factory datasheet parameters for cylinder model HCYY11112005. These figures are derived directly from the manufacturing drawing and test records \u2014 not nominal averages \u2014 and can be confirmed against the original technical image provided in our catalogue.<\/p>\n

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Main Boom Angle Cylinder<\/th>\n<\/tr>\n
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
HCYY11112005<\/td>\n\u03a655\u00d7\u03a650\u00d7506<\/td>\n21MPa<\/td>\n26.5MPa<\/td>\n506<\/td>\n1259.7<\/td>\n32kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* All values are factory-tested figures. Custom specifications (bore size, stroke, pressure rating, port configuration) are available on request.<\/p>\n

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\"Main<\/div>\n<\/div>\n

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Related Cylinders for Aerial Work Vehicles<\/h2>\n

The main boom angle cylinder is one component in a broader system. For UK buyers sourcing a complete cylinder set for crane or aerial work vehicle applications, the following models from the same manufacturing series are frequently specified alongside the HCYY11112005:<\/p>\n

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\"Cylinder<\/div>\n
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CRANE CYLINDER<\/div>\n

Truck Crane Front Outrigger Opening Cylinder \u2014 \u03a640\u00d71855mm, 12MPa<\/a><\/h3>\n

A long-stroke outrigger cylinder providing lateral stabilisation for truck-mounted cranes. The 1855mm stroke delivers the wide outrigger spread needed for safe lifts on uneven ground.<\/p>\n<\/div>\n

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CRANE CYLINDER<\/div>\n

Truck Crane Rear Outrigger Opening Cylinder \u2014 \u03a640\u00d7635mm, 12MPa<\/a><\/h3>\n

A compact rear outrigger cylinder for truck cranes where the rear span is shorter than the front. The 635mm stroke is matched to rear chassis geometry and pairs directly with the front outrigger unit.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Real Results from UK and European Buyers<\/h2>\n

The following case and testimonials represent verified procurement relationships with buyers who rely on our cylinders in regular service cycles.<\/p>\n

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CASE STUDY \u2014 UK POWERED ACCESS HIRE<\/div>\n

Reducing Cylinder Downtime by 60% for a Midlands Aerial Platform Fleet<\/h3>\n

A powered access hire company operating 38 articulated boom lifts across Birmingham, Coventry, and Leicester was experiencing frequent seal failures on the main boom angle cylinders of their existing fleet \u2014 roughly one seal replacement per machine every four months. Lead times on replacement seals from the OEM parts channel were running at 6\u20139 weeks, leaving machines on the ground during peak construction season.<\/p>\n

After trialling two HCYY11112005 cylinders as direct replacements on their heaviest-used machines, they reported zero seal failures over a 14-month observation period. They subsequently converted 22 machines in their fleet to this cylinder model. Seal kit stock is now held by their in-house workshop, with next-day delivery from our UK freight partner, cutting unplanned downtime events by approximately 60% year-on-year.<\/p>\n<\/div>\n

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“We’ve been replacing OEM boom cylinders with these units for two seasons. The chrome quality is noticeably better \u2014 no pitting after winter site work \u2014 and the lead time is weeks shorter than going back to the original manufacturer.”<\/p>\n

James R.<\/div>\n
Fleet Maintenance Manager \u2014 Plant Hire Company, Yorkshire, UK<\/div>\n<\/div>\n
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“As a scaffolding and elevated access contractor in the Netherlands, finding a supplier who could provide full documentation \u2014 pressure test certs, material certs, CE declaration \u2014 was essential. These cylinders ticked every box and arrived well-packaged.”<\/p>\n

Pieter V.<\/div>\n
Technical Procurement \u2014 Elevated Access Contractor, Rotterdam, Netherlands<\/div>\n<\/div>\n
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“We ordered a batch of 12 cylinders for our service centre stock. Dimensions were spot-on, seals are holding perfectly, and the response time from the sales team when we had a technical query was same-day. Would not hesitate to reorder.”<\/p>\n

Daniel M.<\/div>\n
Parts & Service Director \u2014 Aerial Work Platform Distributor, Glasgow, Scotland<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Manufacturing Capability & Custom Orders<\/h2>\n
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Our manufacturing facility operates a dedicated hydraulic cylinder production line equipped with CNC deep-hole boring machines, internal honing centres, and automated seal groove cutting. The standard HCYY11112005 cylinder is held in production inventory, but our engineering team actively supports non-standard requests \u2014 a regular requirement from UK OEMs and service companies whose boom lifts have been modified or upgraded beyond factory spec.<\/p>\n

Custom capabilities include: bore diameters from 40mm to 250mm, strokes from 100mm to 3000mm, pressure ratings to 35MPa, alternative end fitting configurations (threaded eye, trunnion mount, flanged head), internal cushioning, position feedback sensor ports, and bespoke surface treatments including nickel-chrome plating for food-grade or marine applications.<\/p>\n

Prototype lead time for a new cylinder design is typically 15\u201320 working days from drawing approval. Production batches of 20+ units can be supplied within 25\u201335 working days depending on material availability. All units leave the factory with 100% hydraulic pressure testing to 1.5\u00d7 rated working pressure.<\/p>\n<\/div>\n

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CUSTOM CYLINDER INQUIRY<\/div>\n

Send your drawing, sketch, or even a failed cylinder to our engineering team and receive a technical response within one business day.<\/p>\n

Get a Quote<\/a><\/p>\n

sales@steeringcylinder.top<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Frequently Asked Questions<\/h2>\n

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\nWhere can I buy a main boom angle cylinder for an articulated boom lift in the UK, and how long does delivery take?<\/span>
\n\u25bc<\/span><\/summary>\n
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You can source the HCYY11112005 main boom angle cylinder directly from our factory via our website or by emailing sales@steeringcylinder.top. For UK buyers, we ship via sea freight to Felixstowe, Southampton, or Tilbury, with transit times of approximately 18\u201325 days from order confirmation. Express air freight to UK airports \u2014 typically 5\u20137 days \u2014 is available for urgent replacements. Stock cylinders are dispatched within 3 working days of payment; custom units require 15\u201325 working days depending on specification complexity.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhat is the price of a replacement main boom angle cylinder for an articulated boom lift, and do you offer discounts for fleet quantities?<\/span>
\n\u25bc<\/span><\/summary>\n
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Pricing for the HCYY11112005 cylinder depends on order quantity and destination port. We offer tiered pricing with meaningful discounts at 5+ units and further reductions at 20+ and 50+ unit quantities \u2014 relevant for plant hire companies, boom lift distributors, and service centres maintaining large fleets. To get a firm quote with current pricing and your applicable freight cost, email your required quantity and delivery port to sales@steeringcylinder.top. We respond to price enquiries within one business day.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nHow do I know if the \u03a655\u00d7\u03a650\u00d7506 main boom angle cylinder will fit my articulated boom lift without modification?<\/span>
\n\u25bc<\/span><\/summary>\n
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The key dimensions to verify are: bore diameter (\u03a655mm), rod diameter (\u03a650mm), stroke (506mm), and installation distance (1259.7mm), plus the pin diameter and clevis width at both ends. Measure the failed cylinder if possible, or request the OEM boom cylinder drawing from your machine’s manufacturer. Send those measurements to our engineering team and we will confirm compatibility within 24 hours. If your machine’s installation distance differs slightly, we can adjust the cylinder body length in production to match without changing the bore or pressure rating.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhich supplier in the UK construction equipment sector can provide a hydraulic cylinder with a pressure test certificate and material certificate for PSSR compliance?<\/span>
\n\u25bc<\/span><\/summary>\n
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We supply a hydraulic pressure test certificate as standard with every HCYY11112005 cylinder, confirming the unit was tested to 1.5\u00d7 rated working pressure before dispatch. Material certificates (EN10204 3.1) for the barrel tube, piston rod, and weld material are available on request at the quotation stage \u2014 no additional cost for standard orders. These documents are suitable for the inspection records that UK buyers maintaining equipment under the Pressure Systems Safety Regulations 2000 (PSSR) are required to keep. Contact us at sales@steeringcylinder.top specifying your documentation requirements.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhen should I replace the main boom angle cylinder on my articulated boom lift, and what are the warning signs of cylinder failure?<\/span>
\n\u25bc<\/span><\/summary>\n
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The most common indicators of a failing main boom angle cylinder are: visible oil weeping at the rod seal or end cap, boom drift (the boom slowly lowers or changes angle when the control lever is in neutral), jerky or hesitant boom movement during elevation cycles, and visible scoring or corrosion pitting on the exposed rod surface. In service environments with outdoor exposure \u2014 typical of UK construction sites \u2014 rod seal life is typically 2,000\u20134,000 operating hours depending on contamination levels. Cylinder replacement rather than just seal replacement is recommended when the rod shows visible scoring, the bore has measurable ovality, or the cylinder has suffered an impact that may have introduced bending stress into the barrel.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhat is the difference between the working pressure and maximum withstand pressure of the HCYY11112005 cylinder, and why does it matter for UK operators?<\/span>
\n\u25bc<\/span><\/summary>\n
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The working pressure (21MPa) is the continuous rated pressure the cylinder is designed to operate at indefinitely without seal or structural degradation. The maximum withstand pressure (26.5MPa) is the burst-test ceiling \u2014 the pressure to which each unit is tested in our factory without failure. For UK operators, this safety margin is critical: articulated boom lifts generating pressure spikes during rapid boom cycling or when recovering from overload events can momentarily exceed system relief valve settings. The 5.5MPa gap between working and withstand pressure provides the cushion that keeps the cylinder safe during those transient events.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n

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Ready to Source the HCYY11112005 for Your UK Fleet or Project?<\/h2>\n

Send your order quantity, delivery port, and any custom specification requirements to our engineering sales team. Response within one business day.<\/p>\n

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

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

Supplier of main boom angle cylinder HCYY11112005 (\u03a655\u00d7\u03a650\u00d7506, 21MPa) for articulated boom lifts. UK B2B orders welcome. Full test certificates, custom specs available. Email sales@steeringcylinder.top<\/a>.<\/p>","protected":false},"featured_media":874,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[22],"product_tag":[],"class_list":["post-871","product","type-product","status-publish","has-post-thumbnail","product_cat-cylinder-series-for-aerial-work-vehicles","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/product\/871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/comments?post=871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/media\/874"}],"wp:attachment":[{"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/media?parent=871"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/product_brand?post=871"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/product_cat?post=871"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/steeringcylinder.top\/kk\/wp-json\/wp\/v2\/product_tag?post=871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}