Rexroth 4WE10 Solenoid Valve | 4WE10J3X 4WE10E73 4WE10U3X | NG10 Directional Valve

The 4WE10 Series directional solenoid valves from Chengyuan Hydraulic are high-performance components fully compatible with Rexroth Series 3X and 5X standards. With a nominal size of 10 (NG10), these valves are the industry standard for industrial automation hydraulic systems. For core models such as 4WE10J3X, 4WE10E73, and 4WE10U3X, we have optimized the 5-chamber valve body design to minimize pressure drops ($\Delta p$). Every valve undergoes 100% simulated high-frequency switching tests to guarantee operational stability under high-pressure (315 bar) conditions, ensuring 100% original-place interchangeability.

Technical Specifications :

• Series Model: 4WE10 Series (Size 10)

• Design Series: Series 3X / 5X

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

• Max Operating Pressure (Port T): 160 bar (Standard AC) / up to 210 bar (DC)

• Maximum Flow Rate: 120 L/min

• Spool Symbols: J (P blocked, A/B to T) / E (All blocked) / U (All connected)

• Voltage Options: CG24 (24V DC) / CW230 (230V AC) / EG24 (With manual override)

• Electrical Connection: N9 (Central connection) / K4 (DIN 43650 Plug)

• Seal Material: NBR (Standard), FKM (Optional)

Key Technical Advantages:

• Wet-Pin Solenoid Technology: The 4WE10 utilizes wet-pin solenoids where the armature moves in hydraulic oil. This allows for superior heat dissipation and utilizes the oil’s damping properties to reduce mechanical impact on the pole tube, extending service life to over 10 million cycles.

• Low Pressure Drop Flow Path: Our 5-chamber valve body is manufactured using high-precision casting processes. The optimized internal geometry reduces flow resistance, resulting in lower power consumption and minimal heat generation even at a full flow of 120 L/min.

• Precision Spool-Bore Fitting: The clearance between the spool and the bore is maintained within $2-3\ \mu m$. Combined with fatigue-resistant reset springs, this ensures accurate and rapid spool return even after long periods of dwelling under high pressure.

• Full-Load Dynamic Validation: Chengyuan performs step-response tests on every batch. By monitoring the relationship between current pulses and spool displacement, we ensure the solenoid provides stable shifting force even with a 10% voltage drop.

Application Areas:

• Machine Tools: Clamping circuits for CNC machines and auxiliary actions for injection molding.

• Metallurgy: Hydraulic power units for steel mills and rolling mill press-down systems.

• General Machinery: Medium-to-large scale control systems for shearing, bending, and baling machines.

Expert Maintenance Tips:

• Voltage Stability: Ensure the control voltage stays within $\pm 10\%$ of the rating. Overvoltage causes overheating, while undervoltage may lead to incomplete spool shifting and system pressure spikes.

• Port T Backpressure: While the 4WE10 supports high backpressure on the T port, exceeding 160 bar may slow down shifting times or cause failure. Use oversized return lines wherever possible.

• Manual Override Usage: During commissioning, avoid using sharp tools to press the manual override button (EG24) to prevent damaging the seal cap and causing external leakage.