Cilindro do braço oscilante do caminhão com gancho de elevação — Φ160mm, curso de 1925mm

The hook-lift truck swing arm cylinder is one of the most mechanically demanding components in any roll-on/roll-off container handling system. Unlike a standard linear cylinder, the swing arm cylinder must sustain simultaneous radial and axial loads as the hook-lift arm pivots through its full arc — a motion that puts severe bending stress on the rod seal, chrome plating, and barrel weld zones. After more than eighteen years of field engineering across refuse collection, skip hire, and aggregate logistics, the engineering conclusion is consistent: cylinder geometry and material specification matter far more than headline pressure rating alone.

Our HCYY11112014 swing arm cylinder addresses every one of those failure modes. The Φ160 mm bore delivers the clamping force needed to hold a fully loaded 20-tonne container body at rest without drift, while the 1925 mm stroke accommodates the full kinematic envelope of heavy hook-lift subframes used on 26-tonne and 32-tonne gross vehicle weight chassis common on UK roads. Whether your fleet operates in waste transfer in Manchester, skip hire in Birmingham, or bulk haulage in the Scottish Central Belt, this cylinder is built to perform shift after shift without unscheduled downtime.

Technical Specifications

Strict factory data — no rounding, no simplification. Replicated from original engineering catalogue.

All data verified against factory QC records. Custom stroke, bore, and port configurations available on request.

How the Swing Arm Cylinder Works

The swing arm cylinder operates as a double-acting hydraulic actuator that converts pressurised fluid energy into precisely controlled rotational force at the hook-lift pivot point. Hydraulic oil supplied by the truck’s PTO-driven pump enters the cap-end port, forcing the Φ80 mm piston rod to extend. This extension pushes the swing arm assembly upward and forward, lifting and tilting the container body clear of the vehicle frame. To lower, the pump diverts flow to the rod-end port, collapsing the stroke back to its retracted position with equal control authority.

The barrel is fabricated from seamless cold-drawn hydraulic tube with an internal honed bore held to H8 tolerance — a specification that ensures consistent oil film thickness across the full 1925 mm stroke, even after 500,000 operating cycles. The piston rod is manufactured from 45-grade quenched and tempered steel, then hard chrome-plated to a minimum 25 μm deposit depth before being ground and polished to Ra 0.4 surface finish. This combination resists the abrasive particulate contamination common in quarry and recycling yard environments found throughout the UK.

The seal package uses a compound arrangement: a PTFE-backed bronze guide ring manages lateral rod loading, while a polyurethane primary seal and a nitrile secondary wiper work in tandem to maintain zero external leakage at the full 35 MPa test pressure. Both clevis eyes are machined from forged steel and accept standard ISO 6982 pin sizes, making the HCYY11112014 a direct replacement for OEM cylinders on most European-specification hook-lift subframes.

Where This Cylinder Is Used

Why This Cylinder Outperforms Off-the-Shelf Alternatives

Complete Hook-Lift Cylinder Series

The swing arm cylinder works in concert with other specialised hook-lift hydraulic cylinders. Two sister products are available for direct supply to UK customers:

Manufacturing Capability & Bespoke Cylinder Services

Our production facility operates CNC deep-hole boring lines, hard chrome plating tanks, honing machines, and servo-controlled hydraulic test benches under one roof. This vertical integration is the reason we can offer UK customers a level of customisation that most catalogue suppliers cannot match. Whether you need a swing arm cylinder with a modified installation distance to fit a non-standard subframe, a chrome rod with additional overlay thickness for highly corrosive marine applications, or a completely redesigned end fitting to interface with a bespoke hook-lift design, our engineering team will produce dimensional approval drawings within five working days of receiving your technical brief.

We also offer a repair and re-chrome service for worn hook-lift cylinders — a cost-effective alternative to new unit replacement that is particularly valued by UK local authorities managing fleet budgets under tight procurement constraints. Minimum re-chrome order is one unit.

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Customer Success: How UK Fleets Rely on This Cylinder

Midlands Skip Hire Operator — Birmingham, UK (Waste & Recycling)

A privately owned skip hire business operating 14 hook-lift trucks across the West Midlands had been replacing swing arm cylinders from a local hydraulic supplier every 14 to 18 months — primarily due to chrome rod pitting caused by road salt exposure during winter gritting season. After switching to the HCYY11112014 in late 2024, the fleet maintenance manager reported zero cylinder replacements through two full winter periods. The thicker chrome deposit and epoxy primer finish appear to be the decisive factors. The company has since standardised the HCYY11112014 across its entire fleet.

“We’ve put these cylinders through two of the worst winters we’ve had in years and they haven’t missed a beat. The documentation pack alone makes our annual DVSA checks far smoother.”

— Fleet Maintenance Manager, West Midlands Skip Hire

Perguntas frequentes

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