Proportional Directional Valve 4WRDE10V100L-6X/MXY/24A5 - Bosch Rexroth R901435602

A closed-loop axis needs a valve that measures its own spool position instead of just converting a current. The pilot-operated 4WRDE10 in size 10 uses internal spool position feedback and turns a command value of plus/minus 10 V into up to 100 l/min nominal flow at 350 bar operating pressure.

Benefits

• Internal spool position feedback keeps the spool on the command value even when the load on the cylinder changes.
• Nominal flow of 100 l/min with a peak of 170 l/min covers medium-sized axes.
• Operating pressure up to 350 bar allows use in pressing and clamping circuits without an extra reducing stage.
• On-board electronics remove the amplifier card from the cabinet, supply is 24 VDC through the 7-pole connector (6 + PE) to EN 175201-804.
• External pilot oil supply and external pilot oil return keep the pilot stage independent of the pressure in the main circuit.
• Interface pattern ISO 4401-05-05-0-05, spool symbol V, mass 7.5 kg.

Applications

The valve belongs where an axis has to hold a position within tight limits: feed axes on machine tools, cylinders in forming presses and test rigs with changing load. Subplate mounting to ISO 4401-05-05-0-05 makes it a direct replacement for an existing valve of the same size. Hydraulic fluid HL is intended, the seals are NBR.

Manufacturer

Bosch Rexroth builds this valve under material number R901435602. Quote that number when ordering and keep it in the spare parts list of the machine.