Rexroth hydraulic pump A10VSO100DFR1/31R-PPA12N00

1. Model Interpretation

• A10VSO: Series identifier, representing variable displacement axial piston pump with swashplate design for open-circuit hydrostatic drives.
• 100: Nominal size, indicating the maximum geometric displacement per revolution is 100 cm³.
• DFR1: Control mode, standing for pressure and flow controller (DFR) with standard configuration (1).
• 31R: Mounting and rotation direction, 31 represents the standard mounting flange specification, and R indicates clockwise rotation when viewed from the shaft end.
• PPA12N00: Control accessories, PPA12 refers to the standard pressure compensation control component, and N00 indicates no additional special configuration.

2. Basic Information

• Product Brand: Rexroth (Bosch Rexroth AG)
• Pump Type: Variable displacement axial piston pump
• Operating Circuit: Open circuit
• Structural Design: Swashplate design
• Material: Cast iron (main body)
• Common Material Number: R910941332 (reference, subject to actual delivery)

3. Key Technical Parameters

3.1 Displacement

• Maximum Geometric Displacement per Revolution: 100 cm³/rev
• Minimum Displacement: 0 cm³/rev (stepless adjustable by swashplate)

3.2 Pressure Parameters

• Nominal Pressure (pₙₒₘ): 280 bar
• Maximum Pressure (pₘₐₓ): 350 bar (total operating duration shall not exceed 300 hours, single operating duration shall not exceed 2.5 ms)
• Minimum Outlet Pressure: 10 bar (to prevent damage to the axial piston unit)
• Inlet Pressure (absolute): Minimum 0.8 bar, Maximum 10 bar
• Maximum Case Drain Pressure: 2 bar (absolute), shall not exceed 0.5 bar higher than the inlet pressure at port S)
• Pressure Change Rate (RA): 16000 bar/s

3.3 Rotational Speed

• Maximum Rotational Speed at Maximum Displacement (nₙₒₘ): 2000 rpm
• Maximum Permissible Rotational Speed at Displacement < Maximum Displacement: 2400 rpm
• Standard Operating Rotational Speed: 1500 rpm

3.4 Flow Rate

• Maximum Flow Rate at Nominal Speed (2000 rpm) and Maximum Displacement: 200 L/min
• Flow Rate at 1500 rpm and Maximum Displacement: 150 L/min
• Minimum Flow Rate: 0 L/min (stepless adjustable)

3.5 Power and Torque

• Maximum Power at Nominal Pressure (280 bar), Nominal Speed (2000 rpm) and Maximum Displacement: 93 kW
• Power at Nominal Pressure (280 bar), 1500 rpm and Maximum Displacement: 70 kW
• Maximum Torque at Maximum Displacement and Nominal Pressure: 446 Nm

3.6 Oil Requirements

• Recommended Oil Type: Mineral oil, hydraulic fluid HF
• Operating Temperature Range: -20℃ to +80℃ (ambient temperature)
• Oil Viscosity: 10 – 400 mm²/s (operating viscosity), 20 – 100 mm²/s (optimal viscosity)

4. Installation and Connection Parameters

• Mounting Flange: ISO 3019-2 (metric), 2-bolt
• Shaft End: ISO key mounting
• Service Line Connections: B flan s metr, S flan s metr
• Drain Ports: 2 drain ports
• Through Drive: Without through drive
• Connector for Solenoids: Without

5. Physical Parameters

• Sealing Material: FKM (standard)
• Weight (approx.): 50 kg
• Paint/Coating: Without paint/top coat

6. Product Characteristics

• Low operating noise and long service life
• Controls with short response times and excellent suction characteristics
• Stepless flow adjustment by swashplate adjustment
• Universal medium-pressure pump, suitable for engineering, construction, metallurgical machinery and other fields

Note