Rexroth 4WE6 Series Solenoid Valve | 4WE6E 4WE6Y 4WE6X | EG24N9K4 DC24V | Directional Control Valve

Chengyuan Hydraulic offers high-performance 4WE6 Series solenoid directional valves, meticulously engineered to serve as direct replacements for Rexroth industrial standards. This lineup includes elite models such as 4WE6E6X/EG24N9K4, 4WE6Y6X, and the high-pressure variant 4WE6X250-31. The 4WE6 is the industry standard for versatile hydraulic control, featuring wet-pin DC solenoids for rapid response and high-frequency switching. Chengyuan guarantees 100% Drop-in Interchangeability for subplate mounting interfaces (ISO 4401-03-02-0-05), physical dimensions, and electrical logic (EG24N9K4). Supported by our 100% Simulation Load Testing, each valve is validated at 31.5MPa, providing a reliable, cost-effective alternative for precision industrial automation.

Technical Specifications 

• Compatible Brand: Rexroth

• Model Codes: 4WE6E6X, 4WE6Y6X, 4WE6X250-31

• Nominal Size (NG): 6

• Max Operating Pressure (Ports A/B/P): 315 Bar (31.5 MPa)

• Max Operating Pressure (Port T): 210 Bar (21 MPa)

• Maximum Flow Rate: 80 L/min (Depending on spool symbol)

• Solenoid Type: Wet-pin (Oil-immersed, zero dynamic seal friction)

• Power Supply: EG24 (24V DC)

• Electrical Connection: N9K4 (Standard DIN plug with LED indicator)

• Seal Material: V (FKM / Viton, compatible with multiple fluids)

• Manual Override: Equipped with manual button

Key Technical Advantages:

• Wet-Pin Solenoid Longevity: The armature operates within the system oil, eliminating friction and wear associated with dynamic seals. This design ensures optimal cooling and a service life exceeding 10 million cycles under high-frequency conditions.

• Precision Cast Flow Paths: The high-strength cast iron body features CFD-optimized internal channels. This reduces pressure drop by approximately 15% compared to generic alternatives, minimizing system heat generation.

• Spool Zero-Clearance Match: Spools are crafted from alloy steel with cryogenic treatment and precision grinding. This ensures micron-level fit, controlling internal leakage to an absolute minimum for high positional accuracy of actuators.

• Contamination Resilience: Specially designed spool notches provide a self-cleaning effect, preventing minor oil particles from causing spool sticking or “silting.”

Application Areas:

• Machine Tools: Tool turret control and workpiece clamping in CNC lathes and machining centers.

• Industrial Presses: Motion distribution for compact hydraulic presses and folding machines.

• Material Handling: Directional control for hydraulic lift platforms and conveyor drives.

• Plastic Machinery: Control for auxiliary ejection circuits and mold safety gates.

Expert Maintenance Tips:

• Manual Override Caution: Do not activate the manual override during normal electrical operation to prevent uncontrolled system movements or potential electrical feedback issues.

• T-Port Backpressure: Maintain T-port pressure below 21MPa. Excessive backpressure can hinder solenoid performance or prevent the spool from returning to its neutral position.

• Coil Overheat Prevention: Never energize the solenoid coil for extended periods if the spool is removed or jammed, as this leads to peak current draw and permanent coil damage.