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Primary Keyword: Hook Lift Locking Hydraulic Cylinder
Related Keywords: roll-off hoist locking cylinder, container locking cylinder, hydraulic locking cylinder, hook lift spare parts, environmental protection truck cylinder
Long-tail Keywords: replacement locking cylinder for roll-off hoist, OEM hook lift hydraulic cylinder supplier, hydraulic cylinder for hook lift truck container lock, hook lift locking cylinder 30MPa, custom locking cylinder for waste collection vehicle
HCYY11112013 — Hook Lift Locking Hydraulic Cylinder
Environmental Protection Series · Double-Acting · Bore Φ40 × Rod Φ20 × Stroke 200 mm
The hook lift locking hydraulic cylinder HCYY11112013 is a compact, high-pressure double-acting cylinder designed specifically to secure containers on roll-off hook lift trucks during loading, transit, and unloading. With a 30 MPa working pressure — the highest rating in the Environmental Protection Series — this cylinder delivers 37.7 kN of locking force through a 200 mm stroke, providing the mechanical authority needed to hold a loaded skip container firmly against the hook lift frame under road vibration and dynamic load shifts.
Where most locking mechanisms rely on passive mechanical latches prone to wear and misalignment, this cylinder provides active hydraulic engagement: the piston extends to drive the locking pin or latch mechanism into its seat, and retract force is equally controlled. The result is a locking action that can be verified by system pressure rather than visual inspection alone — an important operational advantage for fleet operators managing multiple vehicles.
At 4.2 kg, the HCYY11112013 is one of the lightest cylinders in the series, appropriate for a component that mounts at the container locking point — a location where unsprung mass and packaging space are both constrained. It is manufactured to accept optional HNBR seals for operation with biodegradable hydraulic fluid, and can be equipped with a pressure switch port for electronic lock-confirmation signaling.
Өнімге шолу
On a hook lift truck, the container locking cylinder sits at the interface between the hook arm and the container’s locking receiver. When the arm lowers and the hook engages the container, this cylinder extends to drive the lock bar into its seated position. It must hold that position reliably through the full operating cycle — including road transit at highway speeds over rough surfaces where vibration and inertia try to force the latch open. The HCYY11112013 is engineered for exactly this environment.
The cylinder’s high working pressure of 30 MPa relative to its small bore diameter (Φ40 mm) is intentional. A smaller bore at higher pressure produces a more compact envelope than a larger bore at lower pressure for equivalent locking force. This design philosophy keeps the installation distance to 370 mm — short enough to fit within the structural envelope of even compact hook lift frames used on 8–18 tonne GVW trucks. The 200 mm stroke accommodates manufacturing variation in container receiver positions across different container manufacturers, giving operators flexibility when mixing container brands within a fleet.
The cylinder is classified within the Environmental Protection Series, reflecting its primary application on waste collection, recycling, and liquid waste transport vehicles — equipment that often operates in corrosive environments: road salt, acidic leachate splash, and cleaning chemical exposure. Surface treatment and seal specification are selected accordingly. For fleets operating under environmental compliance requirements that mandate biodegradable hydraulic fluid, the optional HNBR seal package is a direct fit without modification to the cylinder body.
For OEM roll-off hoist and hook lift truck manufacturers sourcing locking cylinders for production-line integration, the HCYY11112013 is available with custom mounting configurations, port orientations, and locking-pin interface geometry to match existing frame designs. Replacement-market buyers sourcing this cylinder as an aftermarket substitute should confirm bore, stroke, and port thread specification against the original unit before ordering.
Technical Specifications
| Параметр | Техникалық сипаттама |
|---|---|
| Cylinder Model | HCYY11112013 |
| Type | Double-Acting |
| Bore Diameter | Φ40 mm |
| Rod Diameter | Φ20 mm |
| Stroke | 200 mm |
| Installation Distance | 370 mm |
| Working Pressure | 30 MPa |
| Maximum Pressure | 37 MPa |
| Extend Force (at 30 MPa) | 37.7 kN |
| Салмақ | 4.2 kg |
| Series | Environmental Protection Series |
| Optional Seal | HNBR (biodegradable fluid compatible) |
Installation Position on Hook Lift Garbage Truck
The diagram above shows the complete hydraulic cylinder layout on a standard hook lift garbage truck. The locking cylinder (HCYY11112013) is positioned at the container locking point — the interface where the hook arm frame meets the container’s locking receiver bar. In the diagram, this is the compact short-stroke actuator located near the rear of the arm frame, closest to the hook engagement zone.
Its installation distance of 370 mm keeps it within the structural envelope of the arm frame cross-member without projecting beyond the vehicle body width. The cylinder’s port orientation should be confirmed against the actual hydraulic line routing on the vehicle frame — port position is configurable at order stage to avoid interference with existing hose runs.
Engineering Design Details
Cylinder Tube: The barrel is honed to a surface finish consistent with reliable seal performance across the full 200 mm stroke. Wall thickness is calculated for the 37 MPa burst-test condition with a standard safety factor. The tube is treated externally for corrosion resistance appropriate to vehicle underbody environments.
Piston Rod: At Φ20 mm, the rod diameter relative to the Φ40 mm bore gives a 50% rod ratio. This geometry means the retract force is 25% of the extend force — acceptable for a locking cylinder where the primary work is driving the lock into engagement. The rod surface is hard-chrome plated and precision ground to maintain film integrity with the rod seal under repeated cycling and vibration-induced micro-movement during transit.
Hydraulic Seals: Standard seal material is selected for petroleum-based hydraulic fluid in the temperature range typical of vehicle hydraulic circuits. The optional HNBR package substitutes all elastomer components with hydrogenated nitrile rubber, which maintains seal integrity in contact with synthetic ester and polyglycol biodegradable fluids without swelling or hardening over service life. A pressure switch port can be machined into the cap end to allow integration with a cab-mounted lock-confirmation indicator.
Bore Diameter and Pressure Rating: The Φ40 mm bore operating at 30 MPa delivers 37.7 kN of locking force — enough to resist container movement under the inertial loads generated by emergency braking with a full container. The 37 MPa maximum pressure rating provides headroom against pressure spikes from closed-center valve circuits during thermal expansion.
Stroke and Installation Distance: The 200 mm stroke accommodates variation in locking-pin engagement depth across different container receiver designs. The 370 mm installation distance — measured between mounting pin centerlines — determines the structural bracket geometry required on the hook lift frame. This dimension should be verified against the available frame envelope before ordering.
Mounting Structure: Standard mounting is customizable according to customer requirements — clevis, flange, or trunnion configurations are available. Port thread specification should be confirmed at order stage to match the existing vehicle hydraulic plumbing standard.
Why Choose This Hydraulic Locking Cylinder
- →
Highest working pressure in the series (30 MPa): Produces 37.7 kN of locking force from a compact Φ40 mm bore — maintaining a small installation footprint without sacrificing the clamping authority needed to prevent container movement during road transport. - →
Active hydraulic locking with pressure monitoring: Unlike passive mechanical latches, hydraulic engagement allows pressure-based lock confirmation. The optional pressure switch port enables cab-mounted indicator integration without external sensors or brackets. - →
HNBR seal option for biodegradable fluid compliance: Environmental regulations in EU and other markets increasingly require biodegradable hydraulic fluid on waste collection vehicles. The HNBR package makes this cylinder compliant without system redesign. - →
Vibration-resistant design: Hard-chrome rod finish and quality seal geometry maintain integrity under the sustained vibration exposure of vehicle underbody mounting — reducing the premature seal wear that accounts for most locking cylinder service failures in fleet operations. - →
Lightweight at 4.2 kg: Minimizes unsprung mass contribution at the locking-point mounting location, where weight is most directly felt in vehicle dynamics and structural fatigue loading. - →
OEM and aftermarket replacement compatibility: Custom bore, stroke, port orientation, and mounting configuration are available at order stage, supporting both new OEM integration and drop-in replacement of worn or damaged units on existing hook lift truck fleets.
Application Scenarios for the Replacement Locking Cylinder for Roll-Off Hoist
- Roll-off container trucks — container lock engagement during loading and highway transit
- Hook lift hoist systems on 8–26 tonne GVW vehicles
- Waste collection vehicles operating under biodegradable fluid regulations
- Recycling and scrap material transport vehicles with interchangeable container fleets
- Liquid waste and hazardous material transport where container security is safety-critical
- Skip loaders on construction and demolition sites
- Aftermarket replacement for worn or failed original locking cylinders across common hook lift brands
OEM and Custom Manufacturing Service
Hook lift and roll-off hoist manufacturers work to their own frame geometries, container receiver designs, and hydraulic circuit standards. The HCYY11112013 platform is offered as a starting point for OEM-specific variants rather than a fixed catalogue item.
Customization available at order stage includes: bore and rod diameter adjustments, stroke modification, mounting interface (clevis pin diameter, flange bolt pattern, trunnion position), port thread standard (BSP, NPT, SAE), surface treatment specification, and seal material selection. Customers supplying their own engineering drawings receive a dimensional confirmation before production begins. Prototype quantities are available for fitment verification before batch order commitment.
For replacement-market distributors, the HCYY11112013 can be supplied with matching port thread and mounting pin dimensions to substitute for original cylinders from other manufacturers. Provide the original cylinder drawing or dimensional data at enquiry stage and we will confirm compatibility or propose any adaptation required.
Жиі қойылатын сұрақтар
Can you manufacture this cylinder to our OEM engineering drawings?
Yes. Submit your drawing in PDF, DWG, or STEP format. We will review dimensions and confirm producibility before issuing a formal quotation. Prototype units can be produced for fitment approval before batch production begins.
What is the maximum hydraulic pressure this cylinder can withstand?
The rated working pressure is 30 MPa and the maximum (burst test) pressure is 37 MPa. This is the highest pressure rating in the Environmental Protection Series and is appropriate for high-pressure vehicle hydraulic systems using direct-acting directional control valves.
Is the HNBR seal option a standard catalogue item or special order?
The HNBR seal package is a configurable option. Specify it at order stage. It does not require physical modification to the cylinder body — only the elastomer components change. There is no change to installation dimensions.
Can the cylinder be supplied with a pressure switch port?
Yes. A pressure switch port can be machined into the cap end as a configurable option. Specify the required port thread standard (M, BSP, or NPT) and the switch manufacturer’s fitting size at order stage. This allows direct integration with cab-mounted lock-status indicators without additional external brackets or fittings.
Can samples be provided before batch order?
Sample units are available. Lead time for a standard-configuration sample is typically 15–25 working days. For custom-configuration samples requiring drawing review and tooling preparation, lead time is confirmed at quotation stage.
What port thread standard is used?
Standard port thread can be configured to customer requirement — BSP, NPT, and metric options are available. Specify the required standard at enquiry stage so port thread is confirmed before production.
Is this cylinder suitable as a direct replacement for original equipment on existing hook lift trucks?
In many cases, yes — but the original unit’s bore, stroke, installation distance, port thread, and mounting pin geometry should be confirmed before ordering. Provide dimensional data from the original cylinder or OEM parts list reference and we will confirm fit or identify any adaptation required.
What surface treatment is applied to the cylinder exterior?
Standard exterior treatment provides corrosion protection appropriate for vehicle underbody mounting. Enhanced treatment specifications — including extended salt-spray hours — are available as a custom option for applications in high-corrosion environments such as coastal operations or vehicles using road-salt-treated surfaces year-round.
Request a Quote for the HCYY11112013 Locking Cylinder
Contact us for OEM hydraulic cylinder drawings, bulk pricing, and customized locking cylinder solutions for hook lift systems. Provide your installation dimensions, stroke requirement, and fleet volume for a direct technical response.
Engineering enquiries welcome — send drawings, part numbers, or dimensional data to receive a formal quotation within 24 hours.
