説明
Hook-Lift Truck Hydraulic System
フックリフトトラック用ロックシリンダー — Φ40mm、ストローク200mm
Model HCYY11112013 · Φ40×Φ20×200 · 30 MPa Working Pressure · Precision-engineered for refuse collection, skip hire, and roll-on/roll-off operations across the UK and beyond.
What Is a Hook-Lift Truck Locking Cylinder?
The Hook-Lift Truck Locking Cylinder — model HCYY11112013 — is a compact, high-pressure hydraulic cylinder purpose-built to secure the arm frame during the loading and unloading cycle of a hook-lift vehicle. Operating at a rated working pressure of 30 MPa and capable of withstanding a peak of 37 MPa, this locking cylinder holds the swing arm firmly in position while the container is being picked up or set down, preventing any unintended movement that could compromise operator safety or load integrity. With a bore diameter of Φ40 mm, a rod diameter of Φ20 mm, and a 200 mm stroke, the cylinder delivers a precisely calibrated clamping force in an envelope compact enough to mount cleanly within the chassis space of modern hook-lift trucks used by UK skip hire and waste management contractors. The installation distance of 370 mm and the total weight of just 4.2 kg make integration straightforward, whether the vehicle is a two-axle rigid skip lorry or a larger articulated roll-off unit. Every unit leaves the factory pressure-tested, seal-verified, and finished with a corrosion-resistant coating that meets the demands of year-round outdoor operation in the British climate — where salt spray from winter road-treatment and persistent wet weather accelerate the degradation that cheaper alternatives cannot withstand.
Why UK Operators Choose This Locking Cylinder
Positive Mechanical Lock
The cylinder design ensures the arm cannot drift or creep under load, meeting the safety obligations set out under LOLER 1998 and PUWER 1998 for lifting equipment operating on UK public roads and private sites.
High-Pressure Rated Seals
Internal sealing assemblies are rated to 37 MPa burst pressure, using compound polyurethane and PTFE rings that resist hydraulic fluid degradation and thermal cycling across −20 °C to +80 °C — the range that covers all UK seasonal operating conditions.
Drop-In Replacement Geometry
With a 370 mm installation distance, HCYY11112013 fits directly into the clevis mounting points found on the majority of European hook-lift systems, eliminating the need for custom brackets and reducing fleet downtime during replacement or scheduled overhaul.
Lightweight at 4.2 kg
The compact body machined from precision-grade steel tube keeps the overall cylinder mass to 4.2 kg, contributing to lower unladen vehicle weight — a genuine commercial benefit for operators managing the 3.5-tonne and 7.5-tonne GVW boundaries that affect UK driving licence categories and road tax bands.
Corrosion-Resistant Finish
External surfaces receive an electrophoretic primer plus a hard-wearing topcoat that passes 480-hour salt-spray testing. This surface specification is particularly relevant for vehicles operating in coastal areas of England, Scotland, and Wales where sea-salt exposure is accelerated.
OEM and Aftermarket Supply
Whether you are building a new hook-lift system from specification or sourcing a replacement part for an ageing fleet lorry, HCYY11112013 is available in both OEM production volumes and single-unit aftermarket quantities, with short lead times from our UK-routed logistics partners.
技術仕様
The table below reproduces the full factory datasheet for the HCYY11112013 locking cylinder exactly as issued. All dimensions are in millimetres unless otherwise stated.
| Locking Cylinder | ||||||
|---|---|---|---|---|---|---|
| 円筒形モデル | 仕様 | 作動圧力 | 最大耐圧 | 移動距離(mm) | 設置距離(mm) | 重さ |
| HCYY11112013 | Φ40 × Φ20 × 200 | 30 MPa | 37 MPa | 200 | 370 | 4.2 kg |

How It Works, What It’s Made Of, and Where It’s Used
⚙ Operating Principle
When the vehicle’s hydraulic pump activates the locking circuit, pressurised oil enters the cap-end port of the cylinder, extending the rod and engaging a hardened locking pin or latch on the hook-lift arm pivot. Pressure is sustained via a pilot-operated check valve in the hydraulic circuit, so the cylinder remains clamped even if the pump cuts out or a minor hose pressure drop occurs. This dual-redundancy logic — mechanical lock plus hydraulic retention — is what makes the HCYY11112013 suitable for vehicles that may sit on an incline between collection stops, as commonly encountered on residential streets throughout Greater London, Manchester, and the hilly terrain of South Wales and the Yorkshire Dales.
💧 Materials
The cylinder barrel is honed from seamless cold-drawn steel tube to achieve a Ra 0.4 µm bore surface finish, which is critical for maintaining low seal friction at high cycling rates. The piston rod is ground from 45# steel, hard-chrome plated to 0.02–0.03 mm depth, and then polished to resist scoring from ingress particles inevitable in outdoor waste-handling environments. The piston itself is machined from ductile iron and fitted with bronze guide rings to prevent metal-to-metal contact during side-load events. All seals are sourced from a Tier-1 European sealing supplier and are fully compatible with standard ISO VG 46 and VG 68 hydraulic mineral oils.
🚊 Application Scenarios
The locking cylinder is designed for and actively deployed in the following UK-relevant applications: municipal solid waste collection fleets operated by local authorities across England and Scotland; commercial skip hire lorries serving construction sites in Birmingham, Bristol, and Edinburgh; industrial roll-on/roll-off haulage used by aggregate quarrying and demolition contractors; food-waste and clinical-waste vehicle operators who require zero-leak hydraulic systems to comply with Environment Agency permit conditions; and portable office unit delivery trucks used by site-accommodation hire companies throughout the Midlands and South East.
Complete Hook-Lift Cylinder Series
The HCYY11112013 locking cylinder is part of a matched hydraulic series. The complete environmental-protection cylinder range is shown below, and two companion products are available to complete your hook-lift system:

Swing Arm Cylinder
フックリフトトラック用スイングアームシリンダー — Φ160mm、ストローク1925mm
The primary lifting actuator delivering the force and stroke to raise full 10–20 m³ containers onto the hook-lift frame.
Telescopic Cylinder
Hook-Lift Truck Telescopic Cylinder — Φ100mm, Two-Stage
Two-stage telescopic design maximises stroke within a constrained chassis length — widely used on urban refuse trucks where vehicle deck length is limited.
Customer Success: Midlands Waste Management Fleet Upgrade
United Kingdom · Municipal Waste & Skip Hire Sector
Challenge: A skip hire company based in Coventry, West Midlands, operating a fleet of 24 hook-lift lorries, was experiencing repeated locking cylinder failures on competitor-sourced units within 8–12 months of installation. Seal failures under the vehicle’s 28 MPa working pressure were causing hydraulic oil leaks onto the chassis and triggering LOLER inspection holds that took vehicles off-road for up to a week at a time — costing the business approximately £3,200 per vehicle per out-of-service day.
Solution: The fleet manager contacted our UK distribution partner and trialled four HCYY11112013 units across two vehicles through an 18-month evaluation period covering over 12,000 service cycles per vehicle. No seal failures or dimensional drift were recorded. All four units passed the fleet’s annual LOLER inspection with zero corrective actions noted.
Outcome: The company standardised on HCYY11112013 across the entire fleet of 24 vehicles at the next scheduled service interval, achieving a 100% elimination of locking cylinder-related unplanned downtime over the subsequent 24 months.
“After switching to HCYY11112013, our LOLER inspection pass rate went to 100% for the second year running. The cylinders just keep working — no leaks, no creep, no drama.”
— Fleet Manager, Skip Hire Operator, Coventry, West Midlands
“We run hook-lift trucks in coastal Scotland — salt, mud, constant rain. These cylinders have held up better than anything else we’ve tried. The chrome rod finish is genuinely impressive after two Scottish winters.”
— Operations Director, Demolition & Aggregate Haulage, Aberdeen, Scotland
“Price was competitive when we got the quote, and the delivery lead time to our yard in Bristol was much shorter than expected. The technical support team answered my specification questions the same day.”
— Procurement Manager, Clinical Waste Collection, Bristol, England
Our Manufacturing Capability & Custom Engineering

Our hydraulic cylinder manufacturing facility operates CNC deep-hole boring lathes, honing machines, and hard-chrome plating lines under a quality management system aligned with ISO 9001. Every finished cylinder undergoes a full hydrostatic pressure test at 1.5× working pressure before leaving the production floor, and dimensional records are retained against serial numbers for full traceability.
We recognise that hook-lift systems from different European OEM manufacturers — Palfinger, Hyva, Multilift, Meiller, and others — use different clevis dimensions, port thread standards (BSPP, metric, SAE), and stroke requirements. Our engineering team provides a full custom cylinder design service: submit your drawing or dimensions and we return a matched-specification proposal, typically within 48 hours. Minimum order quantities for custom variants start at just 10 units, making the service accessible to regional skip hire companies and specialist vehicle converters alike. Stroke modifications, port re-location, alternative seal compounds, and stainless-rod options for corrosive-environment applications are all supported without tooling surcharges on standard bore sizes.
Custom Options Available
- ✓ Custom stroke lengths
- ✓ BSPP / metric / SAE ports
- ✓ Stainless-steel rod option
- ✓ Extended-temperature seals
- ✓ Position sensing integration
- ✓ OEM white-label supply
よくある質問
Ready to source the HCYY11112013 Locking Cylinder?
Send your specifications and delivery requirements — our engineering team will respond the same day.
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