Bosch Rexroth 4WMM6J53 B15SOCG Manual Directional Spool Valve

This pre-owned Bosch Rexroth 4WMM6J53/B15SOCG is a manual, direct-operated directional spool valve from the Rexroth WMM family. Actuated by a hand lever, it provides manual control of hydraulic flow through three main ports in nominal size 6, intended for compact hydraulic circuits where local manual override is preferred. The J53 and B15SOCG suffixes denote the specific spool configuration and porting variant for this unit, aligning with Rexroth-compatible manifolds and piping. As a used component, it offers a cost-effective option for testing, prototyping, or spare parts in systems that can tolerate pre-owned hardware. Common applications include machine tools, hydraulic clamping and workholding, and legacy equipment that rely on direct manual directional control rather than solenoid actuation. When reusing this valve, verify mounting orientation, port pattern, and bore size to match your existing hardware, and inspect the spool and seals for wear to ensure reliable operation.