Product Overview
The Rexroth 4WMM6J6X/F (Rexroth Material Number R983030731) is a direct-operated, manual directional spool valve from the proven 4WMM series, size 6 (NG6 / CETOP 3). It is designed to control the start, stop, and direction of hydraulic fluid flow in industrial power units and machine circuits. Actuation is achieved via a hand lever, making this valve ideal for applications requiring reliable manual override or operation without electrical power. The valve features a robust cast iron housing, hardened and precision-ground spool, and a spring-centered or detented configuration depending on the ordered variant. With a nominal flow capacity of up to 60 L/min and a maximum operating pressure of 315 bar, the 4WMM6J6X/F delivers dependable, leak-resistant performance in demanding hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve (Manual Directional Spool Valve) |
| Model Designation | 4WMM6J6X/F / R983030731 |
| Manufacturer | Rexroth (Bosch Rexroth) |
| Size / Interface | NG6 (CETOP 3 / ISO 4401-03) |
| Actuation Type | Manual Hand Lever |
| Spool Type | J (J6X spool symbol — closed center, all ports blocked in neutral) |
| Operating Pressure | Up to 315 bar (ports P, A, B); 160 bar (port T) |
| Nominal Flow Rate | Up to 60 L/min |
| Mounting & Connection | Subplate mounting per ISO 4401-03 / CETOP 3 / NFPA D03 |
| Hydraulic Fluid | Mineral oil (HL, HLP) per DIN 51524; viscosity range 2.8–500 mm²/s |
| Fluid Temperature Range | −20 °C to +80 °C |
Engineering Features & Advantages
- Precision Performance: The directional control valve (manual directional spool valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 60 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a nominal flow capacity of up to 60 L/min and a maximum operating pressure of 315 bar, the 4WMM6J6X/F delivers dependable, leak-resistant performance in demanding hydraulic systems.
PRODUCT IMAGES
Rexroth 4WMM6J6X/F / R983030731 Manual Directional Spool Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WMM6J6X/F / R983030731 Manual Directional Spool Valve. This Germany-made hydraulic component features a manual actuation design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
