Rexroth A10VSO71 Hydraulic Axial Piston Pump for Mining

A10VSO71DFR1/31R-PKC92KA3 A10VSO71DFR1/31R-PKC92N00 A10VSO71DFR1/31R-PPA12K02
A10VSO71DFR1/31R-PPA12K26 A10VSO71DFR1/31R-PPA12N00 Hydraulic pump Rexroth German axial piston pump Mining variable

FAQ:

1. What is the A10VSO71 pump?

The A10VSO71 is an axial piston variable displacement pump manufactured by Bosch Rexroth. It operates via a swashplate design, allowing adjustable flow rates by changing the swashplate angle. This pump is widely used in high-pressure hydraulic systems for industrial machinery, construction equipment, and marine applications due to its efficiency, compact structure, and pressure adaptability.

2. What are the key technical specifications?

• Displacement (Vg max): 71 cm³/rev

• Nominal Pressure (p nom): 280 bar

• Maximum Pressure (p max): 350 bar

• Speed Range: Up to 2,200 rpm (at Vg max)

• Flow Rate (at nominal speed): 156 L/min

• Weight: ~33 kg (standard model)

• Control Options: Pressure cutoff (DR type), load sensing, or proportional control variants.

3. How does the "pressure cutoff" function work?

The A10VSO71DR variant features a pressure cutoff (DR control) mechanism. When system pressure reaches the preset cutoff value, the pump reduces its displacement to maintain constant pressure, minimizing energy consumption. Contrary to some misconceptions, the swashplate does not always return to the minimum angle; it adjusts dynamically based on flow demand while sustaining pressure.

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