The REXROTH 4WRZE16W6-180-74/6EG24N9K31/F1D3M is a heavy-duty industrial proportional directional valve engineered for continuous, high-response control of flow direction and magnitude in hydraulic systems. This pilot-operated, two-stage valve features a 4-way, 3-position spool design with integrated position feedback and on-board electronics (OBE), delivering precise proportional control of actuator velocity and force.
REXROTH 4WRZE16W6-180-74/6EG24N9K31/F1D3M Technical Specifications
| Valve Type | Proportional directional valve, pilot-operated, 2-stage |
| Size | NG16 (CETOP 16 / ISO 4401-07) |
| Spool Type | W6 — 4-way, 3-position, closed center |
| Nominal Flow | 180 L/min at Δp = 10 bar per land |
| Operating Pressure | Up to 350 bar (P, A, B ports); 315 bar (T port) |
| Pilot Pressure | External or internal, min. 25 bar |
| Actuation | Proportional solenoid with wet-pin armature, single coil |
| Electrical Supply | 24 V DC (EG24), nominal current 1.5 A |
| Integrated Electronics | OBE with position feedback (N9), ±10 V or 4–20 mA command |
| Hysteresis | ≤ 0.5% of nominal stroke |
| Response Sensitivity | ≤ 0.2% of nominal stroke |
| Fluid Temperature Range | -20 °C to +80 °C |
| Viscosity Range | 10 to 800 mm²/s |
| Filtration | ISO 4406 (c) 18/16/13 or better |
| Mounting Pattern | Subplate, ISO 4401-07-04-0-94 |
| Weight | Approx. 12.5 kg |
| Part Number | R900548124 |
Key Engineering Features
- Two-stage pilot-operated design with main spool position feedback for high dynamic response and repeatability.
- Integrated on-board electronics (OBE) eliminate external amplifier cards, reducing wiring complexity and installation time.
- Wet-pin proportional solenoid with single coil provides precise force control and long service life under continuous duty.
- Closed-center W6 spool ensures zero flow in neutral position, ideal for load-holding and position-critical circuits.
- Spring-centered spool returns to neutral on power loss for fail-safe operation.
- Rugged cast-iron housing and hardened spool/ sleeve pair resist contamination and wear in high-pressure industrial environments.
- Compatible with mineral oil-based hydraulic fluids (HLP, HLVP) per DIN 51524.
Industrial Applications
- Injection molding machines — clamp, injection, and ejector axis control
- Hydraulic presses — force and position regulation
- Steel and metal forming — roll gap and tension control
- Machine tools — feed and spindle positioning
- Test stands and simulation rigs — dynamic load profiling
- Material handling — smooth acceleration and deceleration of heavy loads
For technical inquiries, dimensional drawings, or replacement support for REXROTH 4WRZE16W6-180-74/6EG24N9K31/F1D3M, contact the Pro-Hydraulic engineering team.
PRODUCT IMAGES
REXROTH 4WRZE16W6-180-74/6EG24N9K31/F1D3M Proportional Directional Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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Shop the REXROTH 4WRZE16W6-180-74/6EG24N9K31/F1D3M Proportional Directional Valve. This precision-engineered industrial component delivers reliable performance and tight fluid control for heavy-duty systems.