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Boom Cylinders | UK B2B Hydraulic Solutions
Forklift Attachment Cylinder — Φ90mm, 265mm Stroke
Heavy-duty hydraulic cylinder engineered for demanding forklift attachment applications across UK warehousing, logistics, and materials handling industries. Rated to 25 MPa working pressure with a Φ90mm bore and 265mm stroke.
When a forklift attachment cylinder fails mid-shift in a UK distribution centre, the cost isn’t just the downtime — it ripples through loading schedules, haulage contracts, and client SLAs. That’s precisely why specifying the right hydraulic cylinder from the outset matters so much. The Forklift Attachment Cylinder Φ90mm 265mm Stroke is designed for exactly those high-cycle, high-load environments where reliability cannot be negotiated. With a bore diameter of 90 mm and a 265 mm stroke, this unit delivers controlled, repeatable extension force with the structural integrity that multi-shift warehouse operations demand. Whether the application is a rotator, a side-shifter, a paper-roll clamp, or a multiple-load handler, this forklift attachment cylinder is engineered to keep the fleet moving.
Technical Specifications
All parameters are factory-verified and documented in the product data sheet. Dimensions are in millimetres unless otherwise stated.
* Specifications subject to confirmation at order stage. Custom bore/stroke combinations available on request.
How the Cylinder Works — Design Principle & Materials
At its core, this forklift attachment cylinder is a double-acting hydraulic actuator. Pressurised fluid enters the cap-end port to extend the piston rod, and the rod-end port to retract it, giving the operator precise bidirectional control over the attachment. The Φ90 mm bore generates substantial push force — calculated at roughly 159 kN at 25 MPa working pressure — making it well suited to heavy side-shift clamps and rotator heads where loads routinely exceed 3 tonnes.
The cylinder barrel is manufactured from honed seamless steel tube, selected for uniform wall thickness and a smooth internal finish that minimises seal wear over extended service cycles. The piston rod is ground from high-tensile alloy steel and hard-chrome plated to a minimum 25 µm depth, providing corrosion resistance that holds up in the damp loading-dock environments common across UK logistics sites. Internal sealing is achieved through a composite piston seal set rated for 35 MPa burst pressure, ensuring a comfortable safety margin above the nominal 25 MPa working pressure. End caps are machined from ductile cast iron, threaded and retained for straightforward field-service access without specialist tooling.
Where This Cylinder Is Used
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Warehouse & Distribution
Operates side-shift carriage units in high-bay pallet storage facilities throughout England, Scotland, and Wales.
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Paper & Printing Industry
Powers paper-roll clamp attachments used by UK print works handling reels up to 2,500 kg.
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Construction Material Handling
Fitted to brick and block clamps on rough-terrain forklifts operating across UK construction sites.
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Automotive Parts Logistics
Used in multi-pallet handlers and drum rotators within UK automotive tier-one supplier warehouses.
Key Performance Advantages
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High Cycle Durability
Composite piston seals and hard-chrome rod plating are validated for millions of full-stroke cycles under continuous warehouse workloads, significantly reducing maintenance intervals compared with standard OEM replacements.
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Pressure Safety Margin
With a maximum withstand pressure of 35 MPa against a working rating of 25 MPa, the cylinder carries a 40% safety factor — important for UK health and safety compliance in PSSR 2000 regulated environments.
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Field-Serviceable Design
Threaded end caps allow seal replacement using standard spanners — no hydraulic press or specialist workshop required. UK fleet maintenance teams can carry out seal kits on-site, keeping the forklift on the floor.
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Drop-In OEM Compatibility
The 460 mm installation distance and standard port thread configurations are matched to the most common forklift attachment platforms, making this a straightforward like-for-like replacement without bracket modification.
Forklift Attachment Cylinder — Complete Series
The Φ90 mm / 265 mm model sits within a broader series of forklift attachment cylinders covering multiple bore sizes and stroke lengths. Browse the full product range below.
Related Models You May Need
Forklift Attachment Cylinder — Φ40mm, 200mm Stroke
Model HCYY11112031 — compact bore variant for lighter-duty side-shift and positioning attachments. Ideal for 1–2 tonne class forklifts operating in UK food & beverage logistics.
Forklift Attachment Cylinder — Φ90mm, 265mm Stroke
Model HCYY11112029 — the unit described on this page. High-force double-acting cylinder for heavy clamp, rotator, and multi-load handler attachments throughout the UK.
Manufacturing Capability & Custom Engineering
Behind every Boom Cylinders product is a vertically integrated manufacturing facility with CNC machining centres, deep-hole honing lines, and hydraulic test benches capable of pressure testing to 60 MPa. The factory covers more than 12,000 square metres of production and quality-control floor space, and holds ISO 9001 certification across all product families.
What sets us apart for UK B2B buyers is the breadth of our custom cylinder engineering service. If the standard Φ90 mm / 265 mm unit doesn’t match your attachment’s geometric envelope or hydraulic circuit demands, our applications engineering team will work from your drawings or sample unit to produce a dimensionally matched, performance-verified alternative — with typical lead times of 4–6 weeks for custom builds. We regularly produce non-standard bore sizes, extended stroke variants, stainless-rod versions for corrosive environments, and cylinder assemblies with integral position sensors for telematics-enabled fleets. Tell us what you need at the enquiry stage and we’ll respond with a fully costed proposal within 48 hours.
Customer Success Case Study
Real-world results from UK and European operations.

Case Study — UK Logistics, 2025
Reducing Cylinder Downtime by 60% at a Yorkshire-Based 3PL
A third-party logistics provider operating a 45,000 sq ft warehouse complex near Sheffield was experiencing frequent cylinder failures on their fleet of 18 Toyota 8-tonne counterbalance forklifts fitted with paper-roll clamp attachments. The OEM cylinders were rated to 20 MPa and failing on average every 14 months due to rod seal degradation in the facility’s dust-heavy environment. After switching to the Boom Cylinders Φ90 mm 265 mm unit — with its hard-chrome rod plating and composite seal package — the fleet completed a full 26-month service cycle without a single unplanned cylinder replacement. Total maintenance cost over that period dropped by 62%, and fleet availability increased from 91.4% to 98.1%.
Maintenance cost reduction
Fleet availability achieved
Service cycle without failure
★★★★★
“We’ve been running three of these cylinders on our clamp trucks for nearly two years with no seal leaks and no rod pitting. The quality is noticeably better than what we were getting before. Will be ordering more for the rest of the fleet.”
— Fleet Engineering Manager, Manchester
UK Road Haulage & 3PL Sector
★★★★★
“Ordered a batch of custom-stroke variants for a non-standard attachment project. The team responded with a full technical proposal within two days, and the parts arrived dimensionally correct on the first shipment. Excellent B2B supplier experience.”
— Procurement Lead, Birmingham
Automotive Component Logistics
★★★★★
“We manage maintenance for a paper mill fleet in Scotland and these cylinders have held up in conditions that destroyed previous suppliers’ products within months. The 35 MPa burst rating gives us real peace of mind for PSSR compliance audits.”
— Maintenance Supervisor, Glasgow
Paper & Packaging Manufacturing
Supplying Forklift Attachment Cylinders Across the United Kingdom
UK buyers sourcing hydraulic cylinders for forklift attachments face a common challenge: the domestic stocking market for mid-bore, custom-configuration cylinders is thin, and lead times from major European distributors can stretch to 8–12 weeks for non-standard units. Boom Cylinders bridges that gap by combining factory-direct manufacturing with an export logistics operation optimised for UK delivery timelines. Standard catalogue units are dispatched within 5–7 working days. Custom-engineered cylinders — including extended strokes, alternative port configurations, and non-standard bore combinations — are typically delivered within 4–6 weeks of drawing approval.
We work with UK materials handling equipment distributors, forklift rental fleet operators, maintenance contractors, and end-user purchasing departments across England, Scotland, Wales, and Northern Ireland. Whether you’re sourcing a single replacement cylinder for an emergency repair in Leeds, or establishing a framework supply agreement covering a 200-unit nationwide forklift fleet, our commercial team is equipped to support the relationship from initial enquiry through to ongoing call-off ordering.
Frequently Asked Questions
Ready to Source Forklift Attachment Cylinders for Your UK Fleet?
Talk to our hydraulic cylinder specialists. Quotations in 24–48 hours. Custom engineering welcome.
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