Radial Piston Pump PR4-3X/20,00-500RG12M01 - Bosch Rexroth R901279513

High-pressure circuits for clamping, pressing and testing need a pump that treats 500 bar as a working point rather than a peak. The radial piston pump PR4-3X/20,00-500RG12M01 delivers up to 26.5 l/min from ten pistons at a constant displacement of 20 cm³.

Benefits

• Maximum operating pressure of 500 bar at a constant displacement of 20 cm³.
• Ten pistons in radial arrangement, which keeps flow pulsation low in the high-pressure range.
• 26.5 l/min flow for circuits where pressure matters more than volume.
• Cast iron housing for open circuit duty in continuous industrial service.
• Shaft end with serration 21 x 24 to DIN 5481 and a 4-hole fastening with 63 mm centering.
• 16.35 kg, clockwise rotation, no through-drive, NBR seals for HLP hydraulic fluid.

Applications

The pump feeds clamping hydraulics in fixtures, presses, riveting tools and test rigs that need small oil volumes at very high pressure. Since displacement is constant, it works together with a relief or unloading valve. Open circuit operation and the cast iron housing suit a stationary power unit on the shop floor.

Manufacturer

Bosch Rexroth, material number R901279513. Product family PR4, size 20 cm³, clockwise rotation and the serration 21 x 24 to DIN 5481 define the coupling to the drive.