GPY Series High Pressure Gear Pump | GPY-4R, GPY-11.5R, GPY-3.9R | Power Unit Pump
| Model Number | GPY-39R876 |
|---|
Product Description
GPY Series High-Performance Micro Power Unit Gear Oil Pumps
Product Overview: The GPY Series is a high-pressure power core specifically engineered for compact hydraulic systems. As an industry benchmark for micro gear pumps, this series is renowned for its exceptional power density and pressure-balancing capabilities, making it the preferred choice for micro-hydraulic power packs. This featured range includes specialized configurations: GPY-3.9R876, GPY-4R872, and the high-displacement GPY-11.5R883 / GPY-11.5R732. Featuring reinforced aluminum alloy bodies and precision-machined gear sets, these pumps deliver ultimate reliability even under frequent start-stop cycles.
Key Technical Advantages:
Ultra-Compact Footprint: Optimized for the limited internal space of power packs, with flange and shaft specs designed for direct integration with DC or AC motors.
High Pressure Resilience: Rated for a continuous working pressure of 21 MPa (210 Bar) with peak pressures reaching 25 MPa, ideal for heavy-duty lifting and clamping applications.
Axial Gap Compensation: Equipped with pressure-balanced floating side plates that adjust clearances based on real-time load. This maintains volumetric efficiency above 93%, effectively minimizing system heat generation.
High-Speed Capability: Optimized internal design supports high-speed operation up to 3500-4000 RPM. Combined with low-friction bearings, it significantly extends service life under intensive duties.
Target Applications: Truck tail lifts, hydraulic lifting platforms, electric forklift steering circuits, micro-sweepers, and various mini-hydraulic power units.
Detailed Models & Parameters:
Core Series: GPY High Pressure Series.
Model Keywords: GPY-3.9R876, GPY-4R872, GPY-11.5R883, GPY-11.5R732.
Displacements (ml/rev): Covering precise specs: 3.9ml, 4ml, and 11.5ml/rev.
Pressure Ratings: Rated at 21 MPa (210 Bar/3000 PSI); Peak pressure up to 25 MPa (3625 PSI).
Suffix Codes: The 872, 883, and 732 designations represent specific combinations of mounting flanges, shaft ends, and port orientations.



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