Product Overview
The Rexroth 4WS2EM10-52/5B11XHT315K31EV (material number R901406026) is a high-response, two-stage servo directional valve from the Bosch Rexroth 4WS2EM series. It operates on an electrohydraulic principle in which a torque motor drives a nozzle-flapper pilot stage, which in turn controls the position of the main spool in the second stage. This architecture delivers extremely fast dynamic response, high flow gain, and precise directional control of actuator motion in closed-loop industrial systems. The valve is designed for demanding position, velocity, and force control loops where accurate metering and minimal hysteresis are essential to overall machine performance.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Servo Directional Valve (Two-Stage, Electrohydraulic) |
| Model Designation | 4WS2EM10-52/5B11XHT315K31EV / R901406026 |
| Series / Size | 4WS2EM, nominal size 10 |
| Pilot Stage Principle | Torque motor with nozzle-flapper pilot stage |
| Main Stage | Precision-ground spool in hardened sleeve, position-controlled |
| Operating Pressure | Up to 315 bar (system pressure rating per model code) |
| Spool / Flow Configuration | 5B spool with 11X metering characteristics (high flow gain) |
| Electrical Interface | Proportional solenoid / torque motor coil, integrated valve amplifier (EV) |
| Mounting & Connection | Subplate mounting per ISO 4401 / DIN 24340, size 10 interface |
| Control Signal | Analog command input, closed-loop spool position feedback |
Engineering Features & Advantages
- Precision Performance: The nozzle-flapper pilot stage combined with closed-loop spool position control delivers very high resolution, low hysteresis, and excellent repeatability for critical motion profiles.
- Fast Dynamic Response: High-response torque motor actuation enables short step response times and wide control bandwidth, ideal for closed-loop position, velocity, and force regulation.
- Stable Flow Metering: The 5B11X spool geometry provides progressive, precisely matched metering edges for smooth acceleration and deceleration of hydraulic actuators.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
This architecture delivers extremely fast dynamic response, high flow gain, and precise directional control of actuator motion in closed-loop industrial systems.
PRODUCT IMAGES
REXROTH 4WS2EM10-52/5B11XHT315K31EV / 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 4WS2EM10-52/5B11XHT315K31EV / R901406026 Solenoid Operated Directional Spool Valve. This Germany-made hydraulic component features a high-performance spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
