GH Series Gear Pump | GH1-19W-FR, GH2-25W-FR, GH1-15W-FR | High Pressure Hydraulic Oil Pump
| Model Number | GH1, GH2, GH4, GH1-19W-FR, GH2-25W-FR, GH1-15W-FR, GH1-25C-FR, GH2-30W-FR, GH1-02W-FR, GH1-04W-FR, GH1-07W-FR, GH1-10W-FR |
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Product Description
GH1 & GH2 Series High-Performance Hydraulic Gear Pumps
Product Overview: The GH Series is a recognized benchmark for reliability in the hydraulic power transmission sector. This comprehensive selection spans from the compact GH1-02W/04W to the high-capacity GH2-30W models. Featured configurations include GH1-19W-FR, GH2-25W-FR, and GH1-25C-FR (with specialized side-plate compensation). Specifically engineered for continuous high-pressure duty, these pumps utilize high-strength extruded aluminum bodies and axial pressure compensation. They deliver elite volumetric efficiency even at operating pressures of 20-25 MPa, making them the premier choice for forklift main pumps, construction machinery steering pumps, and industrial Hydraulic Power Units (HPUs).
Key Technical Advantages:
Lightweight & High-Strength Build: Constructed with reinforced aluminum alloy bodies to significantly reduce weight while maintaining structural rigidity under heavy load cycles.
Superior Volumetric Efficiency: Equipped with automatic axial gap compensation to minimize internal leakage, maintaining an elite efficiency of over 92% to reduce system heat.
Excellent Self-Priming: Optimized internal flow passages ensure robust suction capabilities during cold starts or low RPMs, extending the pump’s service life.
Quiet & Smooth Output: Precision-ground high-strength gear sets combined with advanced relief grooves drastically reduce hydraulic ripples and operational noise levels.
Versatile Fitting Configs: Offers W (Flange Mount) and C (Special Connection) configurations with FR (Clockwise) suffixes for seamless coupling with standard engine and motor power sources.
Detailed Models & Parameters:
Core Series: GH1 & GH2 Hydraulic Series.
Model Keywords: GH1-19W-FR, GH2-25W-FR, GH1-15W-FR, GH1-25C-FR, GH2-30W-FR, GH1-02W-FR, GH1-04W-FR, GH1-07W-FR, GH1-10W-FR.
Displacement Range: 2.0 cm³/rev to 30.0 cm³/rev.
Pressure Ratings: Rated at 20 MPa – 25 MPa (2900 – 3625 PSI) continuous.
Rotation: FR (Clockwise/CW).
Target Applications: Forklift lifting hydraulics, compact excavator steering pumps, agricultural lift systems, and industrial Hydraulic Power Units (HPU).


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