4WRZEM10E85-1X/6EG24K31/A1M

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The Bosch Rexroth 4WRZEM10E85-1X/6EG24K31/A1M (R901246477) is an advanced electrohydraulically actuated proportional directional valve designed for precise control of flow direction and magnitude in hydraulic systems. This valve is characterized by its pilot-operated, stage-proportional directional capability with integrated electronics (OBE) and a spool position indicator that provides feedback on the valve's status. The setup includes a pilot control valve with proportional solenoids and a main valve consisting of a main control spool, valve spring, and position indicator. Functionally, when the solenoids are de-energized, the main control spool maintains a central position due to the valve spring. Energizing a solenoid causes movement in the control spool, allowing pilot oil to enter the pressure chamber and move the main control spool proportionally to the electric input signal—thereby adjusting flow between ports P to A and B to T through orifice-type cross-sections with progressive characteristics. The design ensures that upon deactivation of the solenoid, springs return the spool to its neutral state. The unit's spool positions are detected by an inductive position switch with dual switching outputs preset for specific logic operations. This feature can be integrated into superior controls for monitoring purposes. Electrical connections are made through a pole connector Mx with dedicated pins for signal output and voltage supply. Designed for high safety requirement applications such as hydraulic press control systems, this Bosch Rexroth proportional directional valve meets safety-related component requirements according to category 3, EN ISO 13849-1:2008 standards when used with contact shutoff features. It is suitable for use within safety-related parts of controls adhering to category 3 standards as per EN ISO 13849-1:2008. Furthermore, it is engineered for subplate mounting with porting patterns according to ISO standards and includes an optional auxiliary operating device. The central thread on proportional solenoids allows for easy coil replacement while ensuring reliable operation. A spring-centered control spool ensures stability in default conditions. Users must ensure that tank lines do not run empty and may need to install a preload valve if installation conditions require it.