Bosch Rexroth | A10VSO18DFR31R-PKC62K40
A10VSO18DFR/31R-PKC62K40
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The A10VSO18DFR/31R-PKC62K40 pump belongs to the A10VSO Variable Pumps series and is manufactured by Bosch Rexroth for closed-loop hydraulic automation. It displaces 18 cm³ per revolution to meter fluid accurately with each shaft turn. Clockwise rotation is required, matching right-hand prime movers in typical power units. Installation is simplified by an ISO 3019-1 2-hole mounting flange, while a 1 in SAE suction flange keeps inlet losses low and a 3/4 in SAE pressure flange connects to the working line. Case drainage is routed through a 9/16-18 UNF-2B thread to limit housing pressure. At 1 800 rpm and full displacement it supplies 8.5 gpm, increasing to 15.6 gpm at nominal speed when greater actuator velocity is needed. The rotating assembly can spin to 3 900 rpm without load; under maximum displacement the speed limit is 3 300 rpm to protect against cavitation.
The pump delivers 4 100 psi continuous pressure for normal cycles and endures 5 100 psi during short peaks, making it suitable for medium-pressure circuits. Shaft torque reaches 59 lb-ft when the outlet line is held at 280 bar, and input power rises to 38 hp at nominal speed and stroke, data useful for motor sizing. A built-in flow controller maintains a 200 psi differential to stabilize actuator speed under varying loads. These pressure, torque, and control characteristics provide consistent flow and allow precise regulation in automated presses, machine tools, and mobile hydraulics.
Technical Specifications
Direction Of Rotation
Clockwise (R)
Displacement
18 cm³/rev (1.10 in³)
Drain Port L Thread
9/16-18 UNF-2B
Flow @ 1800 Rpm (vg Max)
8.5 gpm (32 l/min)
Flow Controller Delta-p Setting
200 psi (14 bar)
Max Flow (vg Max @ Nnom)
15.6 gpm (59 l/min)
Max Permissible Speed
3900 rpm
Max Pressure
5100 psi (350 bar)
Max Speed (vg Max)
3300 rpm
Mounting Flange
ISO 3019-1 2-hole
Nominal Pressure
4100 psi (280 bar)
Power @ Nnom (vg Max)
38 HP (28 kW)
Pressure Port B Size
3/4 in SAE flange
Suction Port S Size
1 in SAE flange
Torque @ 280 Bar
59 lb-ft (80 Nm)
1620 Old Apex Road
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