Hydraulic Strength Meets Digital Intelligence
The Bosch Rexroth 4WRLE is a high-response directional control valve that combines a robust, field-proven hydraulic body with intelligent Onboard Electronics (OBE). It eliminates the need to choose between power and precision by delivering both in a single, reliable component. With its flexibility to control position, velocity, and pressure, and its optional IO-Link interface for Industry 4.0 connectivity, the 4WRLE simplifies machine design, reduces system complexity, and provides the high-performance control demanded by modern industrial applications.”
Robust Mechanics
- Cast housing, high-quality pilot stage
- Designed for millions of cycles in tough conditions
- Handles nominal flows up to 1500 l/min (@10 bar drop) and pressures up to 350 bar
Digital Intelligence:
- Constantly monitors the main spool’s actual position and compares it to the command signal
- Real-time micro-adjustments for exact flow or pressure
- Minimal hysteresis and maximum repeatability
Fail-Safe by Design:
- Does not freeze or behave unpredictably if electronics lose power or detect a fault
- Spring-centered spool automatically returns to its safe, neutral position
Optional IO-Link Interface
The M12 plug lets you:
- Send commands and receive diagnostics digitally
- Adjust valve parameters remotely from your HMI
- Get predictive maintenance alerts before a problem shuts you down
- Use the valve as a shut-off element in functional safety systems (up to Cat. 3 / PL d according to EN 13849-1)