Bosch Rexroth | 4WRZ10E85-7X6EG24N9K4M
4WRZ10E85-7X/6EG24N9K4/M
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The 4WRZ10E85-7X/6EG24N9K4/M valve is produced by Bosch Rexroth in the WRZ Proportional Directional Valves series and meters hydraulic flow for automated motion control. Each solenoid draws up to 1.5 A with a cold coil resistance of 4.8 Ω, so drive amplifiers can be sized accurately. A 100 % duty cycle supports continuous energization, while the winding tolerates temperatures up to 150 °C. Connection is made through a DIN EN 175301-803 plug, and the housing carries an IP65 rating against dust and water jets. A concealed manual override allows spool shifting during commissioning or power loss. NBR seals contain common mineral oils and help maintain leakage control.
The unit bolts to manifolds that follow the ISO 4401-05-05-0-94 pattern, and a matching size-10 subplate weighs 7.8 kg. At a 10 bar pressure drop it passes 85 l/min, and the main pressure ports handle up to 315 bar during service. The external drain at port T also withstands 315 bar, while port Y is limited to 30 bar to protect the pilot circuit. All working ports—A, B, T, T1, and P—share an 11 mm diameter to balance flow capacity with manageable velocity. Hysteresis remains at or below 6 %, enhancing repeatability when the valve is used in closed-loop position or velocity control.
Technical Specifications
Coil Resistance (cold 20°c)
4.8 Ω
Duty Cycle
100%
Electrical Connector
DIN EN 175301-803
Hysteresis
≤ 6%
Ingress Protection
IP65
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current (per Solenoid)
1.5 A
Max Operating Pressure (main)
315 bar
Max Pressure Port Y
30 bar
Max Return Pressure Port T (ext Drain)
315 bar
Mounting Pattern
ISO 4401-05-05-0-94
Nominal Flow (Δp 10 Bar)
85 l/min
Port Diameter (a,b,t,t1,p)
11 mm
Seals
NBR
Weight (subplate, Size 10)
7.8 kg
1620 Old Apex Road
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