Rexroth 4WE Series Hydraulic Directional Valve Replacement | 4WE6 Solenoid Valve

Genlu Hydraulic proudly introduces our industrial-grade 4WE Series solenoid-operated directional valves. Fully engineered to match Rexroth global standards, this series provides a high-performance, seamless drop-in replacement for industrial hydraulic fluid control systems. We specifically highlight our supply capability for precision-tuned units such as the 4WE6G50/AG24NZ5L, 4WE6D62/OFEG24N9K4, 4WE6J53/AG24NK4, and 4WE6G/65AG24NZ5L.

The 4WE series is globally recognized for its rapid switching speed, high-pressure resilience, long-lasting coils, and standardized architecture. Genlu guarantees 100% Drop-in Interchangeability across mounting footprints (ISO 4401), electrical connector configurations, and hydraulic flow characteristics compared to original Rexroth 4WE assemblies. Every valve undergoes 100% pressure-seal and solenoid-response testing on our digital test benches, certifying precise control for your most critical industrial and mobile hydraulic systems.

Technical Specifications 

• Product Series: Rexroth 4WE Series Solenoid Directional Valve

• Representative Models: 4WE6G50/AG24NZ5L, 4WE6D62/OFEG24N9K4, 4WE6J53/AG24NK4, 4WE6G/65AG24NZ5L

• Nominal Size: NG6

• Max Operating Pressure: 350 bar (Ports P, A, B)

• Max Flow Rate: 80 L/min

• Operating Voltage: DC 24V

• Electrical Connection: DIN 43650 Connector (with LED/Surge Protection)

• Mounting Style: Subplate Mounting (ISO 4401-03-02-0-05)

Key Technical Advantages:

• High-Dynamic Solenoids: Features elite-grade pressure-resistant wet-armature solenoids that offer rapid response times and minimal operating noise. Coils are vacuum-impregnated for superior insulation, ensuring cooler operation during high-frequency cycles.

• Precision-Mated Spools: Spools and valve bodies are precision-ground for a perfect fit, drastically minimizing internal leakage. Surface-nitrided treatments enhance wear and corrosion resistance, extending total component life.

• Standardized ISO Interface: Strictly manufactured to ISO 4401 dimension standards, guaranteeing a perfect fit into existing hydraulic manifolds and subplates without modification—a true “plug-and-play” solution.

• Rugged Pressure Resilience: Cast from high-strength ductile iron, the housing offers structural rigidity that withstands 350 bar continuous operating pressure without deformation or internal bypass.

Application Areas:

• Industrial Automation: Fluid circuit control for CNC machines, injection molding units, and hydraulic power units (HPUs).

• Mobile Equipment: Directional switching for excavation and loading arms in construction machinery.

• Specialized Machinery: Hydraulic presses, shearing tools, and automated conveyor systems.

Expert Maintenance Tips:

• Preventing Coil Overheat: Frequent switching can lead to thermal buildup. Always ensure supply voltage matches coil specifications; operating under-voltage will cause coil burnout.

• Seal Integrity Checks: If leakage occurs between the valve body and subplate, replace the interface O-rings immediately. Using FKM (Fluorocarbon) seals is recommended for high-temperature operating environments.

• Fluid Filtration: Solenoid valves are highly sensitive to particulate matter. Even microscopic debris can cause spool sticking. Maintain system fluid cleanliness at or above ISO 4406 18/16/13 standards at all times.