Rexroth 4WE6 & 4WE10 Solenoid Valve | 350 Bar Directional Control Valve

Chengyuan Hydraulic’s 4WE6 and 4WE10 series solenoid directional valves are high-fidelity fluid control components engineered to strictly match German Bosch Rexroth industrial benchmarks. These solenoid-operated spool valves are designed to control the flow direction by shifting the internal spool. We provide a complete range of spool symbols (A, B, C, D, E, G, J, H, L, M, etc.), including the specific high-demand code 4WE6G62/EG24N9K4 (R900561282). Featuring 100% physical and functional interchangeability, our valves are subject to 100% simulated load testing at 350 bar. For global B2B clients, Chengyuan offers a reliable, cost-effective alternative with original-grade performance.

Technical Specifications :

• Brand Compatibility: Bosch Rexroth 6X/3X Series

• Standard Sizes: NG6 (Size 6 / ISO 4401-03) and NG10 (Size 10 / ISO 4401-05)

• Specific Cross-Reference: 4WE6G62/EG24N9K4 (R900561282)

• Spool Symbols: A, B, C, D, E, F, G, H, J, L, M, Q, W, U, V (Full support)

• Max. Operating Pressure (P, A, B): 350 bar (5075 psi)

• Max. Tank Pressure (T): 210 bar (DC Solenoids)

• Max. Flow Rate: Up to 80 L/min for NG6; Up to 120 L/min for NG10

• Control Voltage Options: 24V DC (G24), 110V AC (W110), 230V AC (W230)

• Electrical Connection: K4 (Plug-in connector), N9 (Manual override button)

• Cleanliness Class: ISO 4406 20/18/15 or better

Key Technical Advantages:

• Wet-pin Solenoid Design: The armature moves in oil, eliminating dry friction and dynamic seals. This leads to superior heat dissipation, natural lubrication of the shifting parts, and an extremely long service life even in high-frequency applications.

• Sub-micron Precision Lapping: The spool is made of high-strength alloy steel, heat-treated and ground to sub-micron tolerances. The clearance between the spool and housing is maintained at 2-4 microns, ensuring minimal internal leakage and preventing hydraulic locking under high pressure.

• Optimized Cast-iron Body: The housing is produced via high-quality shell molding, providing smooth internal flow channels and a large cross-sectional area. This reduces pressure drop across the valve and minimizes heat generation within the hydraulic system.

• 100% Full-Load Testing: Unlike competitors that perform basic functional tests, Chengyuan tests every 4WE valve under full 350 bar pressure to verify dynamic response and volumetric efficiency, guaranteeing seamless integration into existing Rexroth systems.

Application Areas:

• Machine Tool Industry: Precise control for spindle and clamping mechanisms.

• Plastic Machinery: High-frequency switching for injection and blow molding units.

• Metallurgical Equipment: Logic distribution for high-pressure automated production lines.

• Mobile Equipment: Hydraulic control for attachments on special-purpose vehicles.

Expert Maintenance Tips:

• Strict Oil Filtration: Solenoid valves are sensitive to particulates. We recommend using a 10-micron filter in the return line to prevent micro-scratches on the spool surface that cause leakage.

• Voltage Monitoring: For G24 (24V DC) models, ensure the power supply remains within $\pm 10\%$ of the nominal voltage. Low voltage can result in insufficient magnetic force, leading to shifting failures at rated pressures.

• Installation Torque: Always tighten mounting bolts in a diagonal pattern using a torque wrench. For NG6 valves, the recommended torque is 9–11 Nm. Uneven tightening can cause housing micro-deformation, leading to spool sticking.