HGP-3AY-F8R Hydromax Compatible High Pressure Gear Pump 210bar

Product Overview

The HGP-3AY-F8R, HGP-3AY-F11R, HGP-3AY-F14R and HGP-2AY-F8R models are high-pressure external gear pumps fully interchangeable with the genuine Hydromax HGP-3A/HGP-2A series. Featuring a high-strength aluminum alloy body, precision hardened gears and dual balanced side plates, these fixed-displacement pumps deliver high volumetric efficiency and stable output. Every unit undergoes 100% simulated duty-cycle testing to guarantee exact matching of mounting flanges, shaft ends (spline), ports and performance curves with original HGP pumps. Ideal for forklifts, machine tools, injection molding and industrial hydraulic systems, they provide a reliable drop-in replacement that reduces spare-part costs and downtime.

Technical Specifications 

• Models: HGP-3AY-F8R / HGP-3AY-F11R / HGP-3AY-F14R / HGP-2AY-F8R (Hydromax HGP series)
• Displacement (HGP-3A-F8): 8.4 cc/rev
• Displacement (HGP-3A-F11): 11 cc/rev
• Displacement (HGP-3A-F14): 14.3 cc/rev
• Rated pressure: 210 kgf/cm² (approx. 210 bar / 3000 psi)
• Max pressure: 250 kgf/cm² (approx. 250 bar / 3500 psi)
• Rated speed: 1800 rpm
• Max speed: approx. 3500 rpm (F8); 3000 rpm (F11/F14)
• Min speed: 700 rpm (F8); 600 rpm (F11); 500 rpm (F14)
• Control type: Fixed displacement external gear pump
• Mounting: F = Flange (SAE 2-bolt, DIN 4-bolt, JIS 4-bolt options)
• Shaft: Y = Spline
• Rotation: R = Clockwise (viewed from shaft end)
• Typical weight: 2.45–2.76 kg (model dependent)
• Ports: PT 3/4″ inlet / PT 1/2″ outlet (smaller displacements)

Key Technical Advantages

1. High-strength aluminum alloy body combined with hardened gears and dual balanced side plates maintains high volumetric efficiency and low internal leakage at 210 bar.
2. Optimized gear and flow-path design reduces operating noise and flow pulsation, suitable for applications requiring quieter performance.
3. Full dimensional interchangeability with genuine Hydromax HGP-3A series (flange, shaft and ports) verified by rigorous testing, enabling true drop-in replacement.
4. 100% simulated duty-cycle testing covering pressure, speed and flow curves guarantees factory performance matching original units and minimizes field failures.
5. Lightweight construction with multiple flange and shaft options enhances installation flexibility and power density.

Application Areas

Forklift hydraulic systems, machine tools, plastic injection molding machines, bending machines, lifting equipment, packaging machinery, construction machinery auxiliary circuits and other industrial or mobile systems requiring high-pressure fixed-displacement gear pumps.

Expert Maintenance Tips

• Ensure precise shaft alignment with a flexible coupling; avoid applying radial or axial loads directly to the spline shaft end.
• Keep suction line diameter at least equal to the pump inlet, minimize length and fittings, and maintain good inlet conditions to prevent cavitation.
• On first start-up, set the system relief valve to the lowest setting, run at low speed under no load for several minutes to purge air, then gradually raise pressure.
• Use anti-wear hydraulic oil with appropriate viscosity and maintain high fluid cleanliness; replace filters regularly.
• Periodically inspect shaft seals and mounting bolts; keep the seal area clean to extend service life.