Rexroth A10VSO71DFR1 31R-VPA12N00 Hydraulic Pump Cast Iron 71 cm³ Displacement

The A10VSO71DFR1 31R-VPA12N00 is a high-performance axial piston variable pump designed for industrial applications. Part of the A10VSO series, it features a swashplate design for hydrostatic drives in open circuits, offering excellent suction characteristics, low noise levels, and long service life.

• Geometric Displacement per Revolution (Vg): 71 cm³
• Maximum Rotational Speed at Vg max: 2200 rpm
• Flow at nnom and Vg max: 156 l/min
• Power at nnom, Vg max, and Δp = 280 bar: 73 kW
• Torque at Vg max and Δp = 280 bar: 316 Nm
• Rotary Stiffness:
  • Drive shaft Sc: 71884 Nm/rad
  • Rotor Rc: 76545 Nm/rad
  • Piston Pc: 80627 Nm/rad
• Moment of Inertia of the Rotary Group (JTW): 0.0083 kgm²
• Maximum Angular Acceleration: 2900 rad/s²
• Case Volume: 1.6 L
• Weight (Approx.): 33 kg

• Nominal Pressure (pnom): 280 bar
• Maximum Pressure (pmax): 350 bar
• Minimum Pressure on High-Pressure Side (B): 10 bar
• Maximum Pressure at Suction Port (S): 10 bar
• Maximum Leakage Pressure at Port L, L1: 2 bar

• Setting Range: Up to 280 bar
• Control Fluid Consumption: Maximum approx. 5.5 l/min
• Beginning of Control: 50 bar

This pump is widely used in industrial applications requiring high pressure and variable flow rates. It is suitable for open circuit hydrostatic drives and can be controlled using various pressure and flow controllers.