Description
Compact Hydraulic Cylinder for Pallet Lifting in Agricultural Machinery
The HCYY11112017 is a compact hydraulic cylinder developed for pallet lifting mechanisms in combine harvesters and related harvesting platforms. Where the grain tank cylinder handles the main tank mass, the pallet cylinder operates within the pallet sub-assembly — a location where physical envelope constraints are tighter and lightweight design matters. At just 6kg, bore of Phi40xPhi25mm, and stroke of 348mm, the HCYY11112017 delivers the force output required at 16.7MPa working pressure while fitting into spaces where larger cylinders cannot be accommodated. The 536mm pin-to-pin installation distance gives machine designers a compact, predictable mounting envelope.
Full Technical Parameter Sheet
Matching a replacement or new-design agricultural machinery cylinder requires precise parameter data. The table below provides the complete specification for engineering and procurement review.
| Parameter | Value | Notes |
|---|---|---|
| Model | HCYY11112017 | OEM-replaceable |
| Specifications | Phi40 x Phi25 x 348mm | Bore x Rod x Length |
| Working Pressure | 16.7 MPa | Rated continuous |
| Max. Withstand Pressure | 24.5 MPa | Static proof pressure |
| Stroke | 348 mm | Full extension travel |
| Installation Distance | 536 mm | Pin-to-pin retracted |
| Weight | 6 kg | Dry weight |
Why Compact Design Matters in Pallet Lifting Applications
Modern harvesting machinery faces stricter transport weight limits, tighter machine envelope regulations, and increasing demand for fuel efficiency. Every kilogram removed from a non-structural component is a kilogram available for load capacity or saved from fuel consumption. The HCYY11112017 delivers exactly the force the application demands at 16.7MPa — no larger than required.
The compact 40mm bore keeps the overall package envelope small, allowing shorter hydraulic hose runs and fewer fittings. In harvesting machinery where dozens of hydraulic circuits share a common pump output, reducing volumetric demand of individual cylinders has a cumulative benefit on system response speed and pump longevity.
Materials and Construction
Barrel and End Cap
The cylinder barrel is machined from seamless alloy steel tube, honed to bore tolerance after machining. Welded end caps are post-weld inspected for both dimensional accuracy and weld integrity. Welded body construction provides a compact outer diameter and eliminates tie-rod bolt loosening under vibration — a real concern in harvesting equipment operating across uneven terrain.
Piston Rod and Surface Treatment
The 25mm piston rod is manufactured from 45-grade carbon steel, hard chrome plated and ground to h6 tolerance. Chrome hardness reaches 68 HRC or above, providing corrosion resistance and the low-friction surface that seal life depends on across thousands of stroke cycles.
Low-Friction Seal Package
A polyurethane piston seal provides primary pressure retention; a dual-lip rod seal retains oil at the gland while the external wiper removes contaminants on retraction. The low friction coefficient ensures smooth, responsive movement at low operating speeds — critical during precision header height adjustments where operators expect immediate, proportional response.
Application: Pallet Systems in Combine Harvesters
Within a combine harvester, the pallet refers to the grain platform or header cradle mechanism supporting the cutting head. This cylinder must operate reliably after a full harvest day — when hydraulic fluid temperatures are elevated, particulate levels are higher, and the operator is pushing machine productivity rather than being gentle on components.
The HCYY11112017 also suits feeder house tilt cylinders, header tilt mechanisms, and general-purpose lifting functions where a compact, moderate-bore hydraulic actuator with similar envelope is required. Contact our application engineering team to confirm suitability for a specific function in your machine design or replacement application.
Product Highlights
Fits within tight machine structures, reduces hose routing complexity, and minimises hydraulic circuit volumetric demand.
Low-friction seals deliver immediate proportional movement at low flow rates — important for operator control feel during header positioning.
Hard chrome rod and composite seal package validated for multiple harvest season service life under real operating conditions.
Separately available seal kits allow field repair without complete cylinder replacement. Standard tooling access for gland removal.
Why Equipment Manufacturers Choose Ever-Power
OEM equipment manufacturers look beyond unit price when evaluating a hydraulic cylinder supplier. Delivery reliability, dimensional consistency across production batches, documentation support, and the supplier’s responsiveness to engineering change requests all factor into sourcing decisions that affect production uptime and field service experience.
Request a Quote or Technical Assessment
To order the HCYY11112017 or request a custom variant, contact Hangzhou Ever-Power Hydraulic Cylinder Co., Ltd. at +86-571-88220653 or [email protected]. Provide the machine model and dimensional drawing or sample cylinder for fitment confirmation. Use our contact form for a one-business-day response. Volume pricing and OEM supply agreements available for qualified distributors.
