Product Overview
The Rexroth 4WMM6J6X (material number R983030728) is a manually actuated, direct-operated directional spool valve from the proven 4WMM6 series, designed for precise control of start, stop, and direction of hydraulic flow in industrial power units. Featuring a 4-way, 3-position (4/3) spool configuration with a “J” type center condition, this valve routes pressurized fluid to the selected actuator port while returning exhaust flow to tank. The 6X designation indicates the current component series, ensuring continued availability and dimensional interchangeability with existing Rexroth installations. Manual lever actuation provides reliable, operator-controlled directional switching without the need for electrical supply, making it ideal for mobile equipment, test stands, and auxiliary circuits where simple, robust control is preferred.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve (Manual Directional Spool Valve) |
| Model Designation | 4WMM6J6X / R983030728 |
| Spool Configuration | 4-way, 3-position (4/3), “J” center condition |
| Actuation Type | Manual lever with detent positioning |
| Nominal Size (NG) | NG6 (CETOP 3 / ISO 4401-03) |
| 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 4401-03-02-0-05 / CETOP 3 |
| Hydraulic Fluid | Mineral oil based hydraulic fluid per DIN 51524 |
| Fluid Temperature Range | -20°C to +80°C |
| Viscosity Range | 2.8 to 500 mm²/s (cSt) |
Engineering Features & Advantages
- Precision Spool Metering: Hardened and ground spool with matched bore delivers accurate flow metering, minimal internal leakage, and consistent directional response across the full pressure 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 standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The Rexroth 4WMM6J6X (material number R983030728) is a manually actuated, direct-operated directional spool valve from the proven 4WMM6 series, designed for precise control of start, stop, and direction of hydraulic flow in industrial power units.
PRODUCT IMAGES
Rexroth 4WMM6J6X / R983030728 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 / R983030728 Manual Directional Spool Valve. This Germany-made hydraulic component features a robust manual actuation design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
