A10VO60DFR1/32L-PUC12N00 Rexroth Piston Pump 60cc 250bar

Product Overview

The A10VO60DFR1/32L-PUC12N00 is a Bosch Rexroth A10VO Series 52 swashplate-type axial piston variable displacement pump with a nominal displacement of 60 cm³/rev, nominal working pressure of 250 bar (25 MPa), peak pressure capability of 315 bar (31.5 MPa), featuring DFR1 pressure-flow combined control (X-port blocked version), left-hand rotation (counter-clockwise viewed from shaft end), SAE-C mounting flange, and SAE splined shaft. Designed for hydrostatic drives in open circuits, the pump delivers output flow proportional to drive speed and displacement, with stepless displacement variation via swashplate angle adjustment.

The model code decodes as follows: “A10VO” represents the open-circuit swashplate variable piston pump series; “60” denotes nominal displacement of 60 cm³/rev; “DFR1” specifies the pressure-flow combined controller with X-port blocked (unlike DFR/DRS versions with X-T port open), where unloading the LS pilot line is accomplished through the valve system; “32” is the series code (Series 32); “L” indicates left-hand rotation (counter-clockwise, viewed from shaft end); “PUC12N00” specifies mounting flange, shaft, port, and additional option codes corresponding to SAE-C two-bolt flange and SAE splined shaft.

The A10VO Series 52 pumps feature low-noise operation, excellent suction performance, long service life, and favorable power-to-weight ratio. The DFR1 control method precisely matches pump output flow to actual system demand, eliminating relief losses, particularly suitable for injection molding machines, die-casting machines, machine tools, and other industrial hydraulic systems requiring precise on-demand flow supply and constant pressure holding. The pump supports through-drive capability for tandem connection with same-size A10VO pumps or gear pumps for compact multi-circuit hydraulic system integration.

The companion model A10VSO71DFLR/31R-PPA12N00 is a 71 cm³/rev displacement configuration with 280 bar nominal pressure, 350 bar peak pressure, maximum speed of 2200 rpm, maximum flow of 156 L/min, weight of approximately 33 kg, and DFLR pressure-flow-power combined control (adding constant power limiting to DFR functions), right-hand rotation. This pump is suitable for medium-to-large power hydraulic systems requiring power limiting functionality.

Every A10VO60DFR1/32L-PUC12N00 and A10VSO71DFLR/31R-PPA12N00 undergoes 100% simulated duty-cycle testing prior to shipment — covering pressure holding, flow output, control response, and internal leakage — ensuring complete drop-in interchangeability with original Rexroth products without installation or plumbing modifications.

Technical Specifications

A10VO60DFR1/32L-PUC12N00 Main Model Specifications:

• Model: A10VO60DFR1/32L-PUC12N00

• Brand: Bosch Rexroth

• Series: A10VO Series 32/52

• Pump Type: Open-circuit swashplate axial piston variable displacement pump

• Nominal Displacement: 60 cm³/rev

• Nominal Working Pressure: 250 bar (25 MPa)

• Peak Pressure: 315 bar (31.5 MPa)

• Control Type: DFR1 pressure-flow combined control (X-T port blocked)

• Standby Pressure (X port unloaded to tank): 18 ± 2 bar

• Load Sensing Differential Standard Setting: 14 bar (200 psi)

• Direction of Rotation: L (left-hand, counter-clockwise, viewed from shaft end)

• Mounting Flange: SAE-C two-bolt flange

• Shaft Type: SAE splined shaft

• Seals: NBR (Nitrile)

• Housing Material: Cast iron

• Case Drain Ports: 2

• Through-Drive Capability: Yes, 100% torque transmission

• Fluid Compatibility: Mineral-based hydraulic oil (HLP, DIN 51524)

• Operating Temperature Range: 30–90 ℃

A10VO/A10VSO Series Same-Family Displacement Reference (nominal conditions):

• A10VSO18: 18 cm³/rev, 280 bar nominal, 350 bar peak, max 3000 rpm, weight approx. 12 kg

• A10VO28: 28 cm³/rev, 280 bar nominal, 350 bar peak, max 3000 rpm, weight approx. 15 kg

• A10VO45: 45 cm³/rev, 280 bar nominal, 350 bar peak, max 2600 rpm, weight approx. 21 kg

• A10VO60: 60 cm³/rev, 250 bar nominal, 315 bar peak, max 2400 rpm

• A10VSO71: 71 cm³/rev, 280 bar nominal, 350 bar peak, max 2200 rpm, max flow 156 L/min, weight approx. 33 kg

• A10VSO100: 100 cm³/rev, 280 bar nominal, 350 bar peak, max 2000 rpm, weight approx. 45 kg

• A10VSO140: 140 cm³/rev, 280 bar nominal, 350 bar peak, max 1800 rpm, weight approx. 60 kg

Companion Model Reference:

• Model: A10VSO71DFLR/31R-PPA12N00

• Series: A10VSO Series 31

• Nominal Displacement: 71 cm³/rev (4.33 in³/rev)

• Nominal Working Pressure: 280 bar (28 MPa)

• Peak Pressure: 350 bar (35 MPa)

• Maximum Speed: 2200 rpm

• Minimum Speed: 600 rpm

• Maximum Flow: 156 L/min (41.2 gpm)

• Control Type: DFLR pressure-flow-power combined control (adding constant power limiting to DFR functions)

• Direction of Rotation: R (right-hand, clockwise, viewed from shaft end)

• Mounting Flange: SAE-C two-bolt flange

• Shaft Type: SAE splined shaft (Ø32 mm)

• Weight: Approx. 33 kg

• Through-Drive Capability: Yes, 100% torque transmission

• Fluid Compatibility: Mineral-based hydraulic oil (HLP, DIN 51524)

• Operating Temperature Range: 30–90 ℃

Key Technical Advantages

1. DFR1 Pressure-Flow Combined Control — Precise Load Sensing and Constant Pressure Holding

The A10VO60DFR1/32L-PUC12N00 features a DFR1 pressure-flow combined controller, integrating pressure compensation (DR) and load sensing (FR) functions in a single controller. The DFR1 version has the X port blocked from the reservoir; unloading the LS pilot line is accomplished through the valve system, with standby pressure of 18 ± 2 bar. The load sensing differential is factory set at 14 bar (200 psi). This control method precisely matches pump output flow to actual system demand, eliminating relief losses for significant energy savings under variable load conditions, while reducing system oil temperature and extending fluid and component life.

2. DFLR Pressure-Flow-Power Combined Control — Intelligent Power Limiting and Anti-Stall Protection

The A10VSO71DFLR/31R-PPA12N00 features a DFLR pressure-flow-power combined controller, adding constant power limiting functionality to the DFR pressure-flow control. This control method utilizes a hyperbolic pressure-displacement characteristic to ensure pump drive power does not exceed the set value at constant drive speed: when system pressure rises, pump displacement decreases; when pressure falls, displacement increases — maintaining full utilization of engine or motor power under variable load conditions and effectively preventing engine lugging and stalling. This control method is particularly suitable for injection molding machines, die-casting machines, and other industrial hydraulic systems requiring power limiting.

3. Low Noise Operation and Excellent Suction Performance — Precision Engineering Control

The A10VO/A10VSO Series is renowned for low-noise operation, effectively suppressing pressure pulsation and fluid-borne noise through optimized valve plate flow passages, precision-machined rotary group, and rigid compact housing structure. The series delivers excellent suction performance with optimized suction flow passages ensuring adequate suction at high speeds to prevent cavitation damage. The cradle bearing is hydrostatically unloaded, effectively distributing loads and reducing friction losses for improved operating efficiency and service life.

4. High Power Density and Compact Structure — Flexible System Integration

Both the A10VO60DFR1/32L-PUC12N00 and A10VSO71DFLR/31R-PPA12N00 employ swashplate axial piston design with optimized rotary group, achieving efficient power transmission within a compact structure. The A10VSO71 delivers 156 L/min maximum flow at 2200 rpm and 280 bar, weighing only approximately 33 kg, with power density leading among comparable products. Both pumps support 100% through-drive capability, enabling tandem installation of same-size axial piston pumps or gear pumps on the rear of the main pump for compact system configurations driven by a single prime mover, reducing the number of independent power units and lowering piping complexity and installation costs.

5. Exceptional Field Interchangeability and Series Selection

The A10VO60DFR1/32L-PUC12N00 features mounting flange (SAE-C two-bolt), SAE splined shaft, and port layouts conforming to Rexroth A10VO Series standards, enabling drop-in interchangeability with other A10VO60 models of the same specification. The A10VSO71DFLR/31R-PPA12N00 similarly conforms to A10VSO Series 31 standards, enabling drop-in interchangeability with other A10VSO71 configurations. The A10VO/A10VSO Series covers a wide displacement range of 18–140 cm³/rev within a shared mounting flange system, offering DG, DR, DFR, DFR1, DFLR, ED, and other control options for flexible selection in system design and equipment maintenance.

Application Areas

• Injection Molding Machines: Main pump for clamping, injection, and holding pressure circuits, with DFR1/DFLR control enabling on-demand flow and energy-efficient operation

• Die-Casting Machines: Main hydraulic pump for shot and intensification systems, with DFLR power limiting preventing engine overload

• Machine Tools and Tool Machines: CNC lathes, machining centers, and grinding machine clamping, feed, and tailstock drive hydraulic systems

• Hydraulic Presses: Four-column and frame-type hydraulic press power sources

• Metallurgical Equipment: Rolling mill, forging equipment, and continuous casting machine hydraulic power stations

• Construction Machinery: Excavator and loader auxiliary hydraulic systems

• Marine Auxiliary Equipment: Deck machinery and steering gear hydraulic systems

• Material Handling Equipment: Medium forklift and telehandler hydraulic power units

The A10VO60DFR1/32L-PUC12N00 is ideally suited for medium-high pressure hydraulic systems requiring 250 bar working pressure, 60 cm³/rev displacement, and DFR1 control. The A10VSO71DFLR/31R-PPA12N00 is suitable for medium-to-large power hydraulic systems requiring 280 bar working pressure, 71 cm³/rev displacement, and DFLR pressure-flow-power combined control — the classic configuration for injection molding machine and die-casting machine hydraulic power units.

Expert Maintenance Tips

1. Shaft Alignment and Coupling Requirements

Maintain concentricity between the pump shaft and drive shaft within 0.05 mm. Flexible couplings are strongly recommended to accommodate minor angular misalignment. Use appropriate lifting equipment during installation and never strike the shaft end. Tighten SAE-C two-bolt mounting flange bolts in diagonal sequence to the specified torque. The SAE splined shaft (Ø32 mm for A10VSO71) engagement with the drive coupling should ensure sufficient spline engagement length. Couplings must be equipped with protective guards.

2. Pre-Start Priming Procedure (Mandatory)

Before initial startup, the pump must be slowly filled through the case drain port with clean hydraulic oil to ensure adequate lubrication, cooling, and sealing during startup. Operating an axial piston pump dry — even for a few seconds — will score the swashplate, valve plate, and piston slippers, causing immediate total pressure loss and irreversible damage. Start the pump in jog mode until the pump and piping are sufficiently filled and vented. After complete venting, run at low pressure for 5–10 minutes, then gradually increase to rated pressure. The case drain must be on top of the pump, with a separate line unrestricted to the reservoir extending below the oil level.

3. DFR1/DFLR Controller Commissioning

Commission the DFR1 pressure-flow combined controller by separately setting the flow valve (FR) standby differential and the pressure valve (DR) cut-off pressure. The DFR1 version has the X port blocked; unloading the LS pilot line is accomplished through the valve system. Standby pressure is 18 ± 2 bar, with load sensing differential factory set at 14 bar. The DFLR controller adds constant power limiting to DFR functions; during commissioning, verify that the power setting matches the drive source power output. The pressure compensation setting should be at least 10–15 bar below the system relief valve setting. Adjustment must be performed with the pump at full displacement and low operating pressure to avoid system pressure oscillation.

4. Fluid Cleanliness and Filtration

Fluid cleanliness of ISO 18/16/13 (NAS Class 8) or better is recommended. Use pressure line filters with 10 μm filtration accuracy. Avoid suction filters, which increase suction resistance and cavitation risk. The case drain line should be independently routed to the reservoir, avoiding shared return lines. Mineral-based hydraulic oil (HLP, DIN 51524) is recommended, with operating temperature range of 30–90 ℃. Hydraulic oil should be changed every 1000–3000 hours of operation or every six months.

5. Restart Procedure After Extended Shutdown

If the pump has been idle for more than 30 days, manually rotate the shaft several turns to verify free rotation before restarting. Check for abnormal leakage at the case drain port. After startup, operate at low pressure for 10–15 minutes until oil temperature reaches normal operating range before applying full load. Regularly inspect the splined shaft and drive coupling engagement during operation, ensuring sufficient spline engagement length. When using DFLR power limiting functionality, periodically verify power setting accuracy.