Bosch Rexroth | A10VSO45DFR131R-VPA12N00
A10VSO45DFR1/31R-VPA12N00
Request a Quote
In-Stock, Ships 1-2 Days
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The A10VSO45DFR1/31R-VPA12N00 pump is produced by Bosch Rexroth for the A10VSO Variable Pumps series and supplies adjustable flow in hydraulic automation circuits. Its geometric displacement of 45 cm³ per revolution sets the volume of oil moved each shaft turn, while clockwise rotation matches common right-hand prime movers. A top speed of 2600 rpm at maximum displacement supports rapid actuator cycles, giving 81 l/min when the shaft turns at 1800 rpm and 117 l/min at the specified nominal speed. The drive motor must handle 55 kW at that nominal speed, and the shaft transmits 72 Nm when system pressure is 100 bar, both figures guiding power-train selection. A case volume of 1.0 l stores leakage oil for cooling and lubrication between service intervals.
The pump withstands 350 bar maximum pressure so it can power high-force cylinders, yet routine operation is set for 280 bar to extend service life. Pilot port X also accepts 350 bar, enabling remote pressure control without an auxiliary intensifier. Case pressure must stay below 2 bar to protect shaft seals, and inlet pressure must remain above 0.8 bar absolute to avoid cavitation. Port B requires at least 10 bar absolute so the stroking mechanism receives enough back pressure to stabilize the swashplate. When the circuit reaches 280 bar the shaft load rises to 200 Nm, a value used to verify coupling and key strength. The assembled unit weighs 23.5 kg without a through drive, allowing one person to mount it with standard handling equipment.
Technical Specifications
Case Volume
1.0 l
Direction Of Rotation
Clockwise
Flow At 1800 Rpm (vg Max)
81 l/min
Flow At Nnom (vg Max)
117 l/min
Geometric Displacement
45 cm³/rev
Max Case Pressure (abs)
2 bar
Max Speed At Vg Max
2600 rpm
Maximum Pressure
350 bar
Minimum Inlet Pressure (abs)
0.8 bar
Minimum Port B Pressure (abs)
10 bar
Nominal Pressure
280 bar
Pilot Port X Pressure Max
350 bar
Power At Nnom (vg Max)
55 kW
Torque At 100 Bar (vg Max)
72 Nm
Torque At 280 Bar (vg Max)
200 Nm
Weight (without Through Drive)
23.5 kg
1620 Old Apex Road
Shipping & Payment Options
