Rexroth A10VO56 DFR/31R Hydraulic Pump for Construction & Industrial Machinery

Open Circuit A10VO56 DFR/31R Load Sensing Variable Pump,

Interchangeable Rexroth

Key Features

1. DFR load sensing control, pressure limiting + flow compensation, energy-saving, less heat buildup

2. High-strength cast iron housing, heavy-duty, long service life

3. Compact structure, easy installation and maintenance

4. Spline drive shaft, strong torque transmission

5. Stable output under variable load conditions

6. Interchangeable with original RexrothA10VO series pumps

7. Suitable for continuous duty industrial & mobile hydraulic systems

Technical Parameters

Application

· Hydraulic power pack / Hydraulic station

· Material handling equipment, forklift, aerial work platform

· Construction machinery, small excavator, road machinery

· Machine tool, injection machine, metallurgical auxiliary equipment

· Agricultural machinery, sanitation vehicle hydraulic system

Specification:

Competitive Advantages

1. DFR load sensing energy-saving control. The built-in DFR regulator automatically adjusts flow to match load requirements, with low standby pressure, less heat and lower power consumption for variable-load hydraulic systems.

2. Fully interchangeable with original Rexroth A10VO56 DFR/31R. Same mounting size, spline shaft, port layout and performance, direct replacement without pipe or bracket modification.

3. Stable heavy-duty performance. High-strength cast iron housing and precision internal components, 280 bar rated pressure and 350 bar peak pressure, reliable continuous operation for mobile and industrial hydraulics.

The Analysis for Rexroth A10VO Axial Piston Commom Breakdown:

1. Pressure fluctuation and unstable running: Caused by air in LS signal line, blocked DFR pilot orifice or contaminated oil. Bleed air from LS line, clean control spool and keep hydraulic oil clean.

2. Failed to reduce flow and high system temperature: Caused by stuck DFR control spool or blocked X port unloading passage. Disassemble and clean the DFR regulator and inspect the X port channel.

3. Insufficient pressure and pressure drop under load: Caused by worn valve plate & piston slipper assembly or fatigued compensator spring. Test case drain flow and replace worn parts or pressure spring.