Product Overview
The Rexroth 4WS2EM10-52/SB11XHT315K31EV (Material Number: R901406026) is a high-response, two-stage servo directional valve from the renowned Rexroth 4WS2EM series. Engineered for precision electrohydraulic control, this valve utilizes a torque motor-driven pilot stage to actuate a main spool, delivering exceptionally fast dynamic response and precise flow metering proportional to the electrical input signal. Designed for demanding closed-loop applications, it serves as a critical control element in industrial systems requiring high accuracy, rapid positioning, and reliable performance under continuous duty cycles.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Directional Valve (Proportional & Servo Valve) |
| Model Designation | 4WS2EM10-52/SB11XHT315K31EV / R901406026 |
| Operating Pressure | Up to 315 bar (Rated), 350 bar (Peak) |
| Nominal Flow Rate | Approx. 40 L/min at Δp = 35 bar per land |
| Mounting & Connection | Subplate Mounting (ISO 4401 / DIN 24340), Size NG10 (CETOP 5) |
| Actuation Type | Electrohydraulic, Torque Motor with Integrated Electronics (OBE) |
| Spool Type | Critical Center, Zero-Lapped, Symmetrical |
| Electrical Interface | Analog Command Signal (±10 V, ±10 mA, or 4–20 mA) |
| Seal Material | NBR (Nitrile) / FKM (Viton) for high-temperature options |
Engineering Features & Advantages
- Precision Performance: Two-stage design with torque motor pilot and main spool provides high-resolution flow control, minimal hysteresis, and excellent repeatability for closed-loop position, velocity, and force control.
- Fast Dynamic Response: Optimized pilot stage and low-inertia spool deliver high frequency response (up to 100 Hz or more), enabling rapid machine cycles and accurate trajectory tracking.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction, contamination-resistant pilot stage, and long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth 4WS2EM series valves, ensuring drop-in replacement without system modification.
- Integrated Electronics (OBE): On-board electronics simplify wiring, reduce installation time, and provide stable, temperature-compensated control signals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Designed for demanding closed-loop applications, it serves as a critical control element in industrial systems requiring high accuracy, rapid positioning, and reliable performance under continuous duty cycles.
PRODUCT IMAGES
REXROTH 4WS2EM10-52/SB11XHT315K31EV / R901406026 Servo Directional 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 4WS2EM10-52/SB11XHT315K31EV / R901406026 High-Response Directional Control Valve. This German-made hydraulic valve features a high-response pilot stage, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
