P08-A3-F-R-01 HHPC Variable Piston Pump 8cc 255bar

Product Overview

The P08 / P16 / P22 / P36 / P46 series (typical models P08-A3-F-R-01, P08-HL3-F-R-01, P08-HL2-F-R-01, P08-HL1-F-R-01, P08-HL0-F-R-01) is an HHPC (HPC / KCL) P-series variable-displacement axial piston pump with pressure-compensator or load-sensing control for open-circuit applications. Flow automatically adjusts according to system pressure for energy-efficient operation. The unit offers 100% drop-in interchangeability with genuine equivalent pumps—no piping or mounting modifications required. Every unit undergoes full simulated operating-condition testing to guarantee high volumetric efficiency and reliability at rated pressure.

Technical Specifications 

• Model: P08-A3-F-R-01 / P08-HL3-F-R-01 / P08-HL2-F-R-01 / P08-HL1-F-R-01 / P08-HL0-F-R-01 (P series)
• Geometric displacement: P08 = 8.0 cm³/rev; P16 = 16.5 cm³/rev; P22 = 22 cm³/rev; P36 = 36 cm³/rev; P46 = 46 cm³/rev
• Maximum setting pressure: A3 type up to 255 bar (adjustable 30–255 bar); HL type 20–215 bar depending on version
• Speed range: 300–2000 rpm
• Control: A = Pressure compensator type; HL = Load-sensing type (HL0/HL1/HL2/HL3 for different pressure ranges)
• Rotation: R = Clockwise (standard)
• Mounting: F = Flange mounting
• Weight (approx.): P08 ≈ 9 kg; P16/P22 ≈ 13 kg; P36/P46 ≈ 24 kg
• Design features: Variable swashplate design, cast-iron housing, optional keyed or SAE splined shaft

Key Technical Advantages

1. Precision-machined swashplate and piston assembly deliver high volumetric efficiency with fast pressure-compensator response for significant energy savings.
2. Pressure-compensator or load-sensing control automatically matches flow to load, reducing heat generation and power consumption.
3. Compact size with multiple mounting and rotation options facilitates installation in space-constrained equipment.
4. Long-life bearings and wear-resistant materials support reliable continuous operation at medium-to-high pressure with extended service intervals.
5. 100% interchangeability plus full operating-condition testing ensures exact match of mounting dimensions, ports and control characteristics with original specifications, minimising downtime.

Application Areas

Designed for open-circuit systems in injection moulding machines, machine tools, hydraulic power units, paint sprayers, small construction machinery, industrial presses and other applications requiring medium-to-high pressure variable flow with energy-efficient control.

Expert Maintenance Tips

1. Before installation, confirm rotation direction (R = clockwise) and shaft type match; ensure precise flange alignment to avoid radial loads.
2. Fully bleed the system before first start-up. Use ISO VG32/46 anti-wear hydraulic oil; maintain cleanliness at NAS 10 or better.
3. Periodically check pressure settings and load-sensing signal lines (HL type); maintain adequate inlet pressure to prevent cavitation.
4. When changing filters and oil, inspect the pistons and valve plate for wear. Perform preventive maintenance if flow decreases or abnormal noise appears to maximise hydraulic-system longevity.