Bosch Rexroth | Z4WE6E68-31EG24K4QMAG24
Z4WE6E68-31/EG24K4QMAG24
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The Z4WE6E68-31/EG24K4QMAG24 belongs to the WE Directional Spool Valves series produced by Bosch Rexroth for hydraulic automation tasks that require reliable flow diversion. It mounts on subplates that follow the ISO 4401-03-02-0-05 pattern, ensuring interchangeability across standard manifolds. Electrical control is handled through a K4 connector according to DIN EN 175301-803, feeding a 24 V DC solenoid that draws 1.25 A and consumes 30 W during actuation. The coil accepts a ±10 % supply variation without losing performance and is rated for continuous S1 duty, so it may remain energized throughout a full production shift. Under prolonged excitation the coil surface can reach 120 °C, and the design tolerates switch-off overvoltages up to 500 V, preventing damage to upstream drivers.
The hydraulic section carries up to 80 l/min while withstanding 350 bar on pressure and service ports, whereas the tank port is limited to 210 bar to protect return lines. An IP65 enclosure prevents dust ingress and water jet damage, allowing installation on exposed machinery. Fluid cleanliness must be kept at ISO 4406 class 20/18/15 to maintain spool accuracy and reduce wear. A QM inductive position switch supplies confirmation signals to the machine controller, supporting closed-loop diagnostics. These characteristics combine to provide consistent directional control in presses, plastics machinery, and other systems that demand fast, repeatable valve shifts under high load.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
Coil Max Surface Temperature
120 °C
Connector Type
K4 (DIN EN 175301-803)
Duty Cycle
100% (S1)
Ingress Protection
IP65
Max Switch-off Overvoltage
500 V
Maximum Flow (dc)
80 l/min
Maximum Operating Pressure (a/b/p)
350 bar
Maximum Tank Port Pressure (dc)
210 bar
Nominal Power (dc Coil)
30 W
Nominal Voltage (solenoid)
24 V DC
Porting Pattern
ISO 4401-03-02-0-05 (NFPA D03)
Position Switch Type
QM (Inductive)
Rated Current (24 V Dc)
1.25 A
Voltage Tolerance
±10%
1620 Old Apex Road
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