Bosch Rexroth | 4WE6X63-6XEG24N962SO43A-1221A
4WE6X63-6X/EG24N9/62SO43A-1221A
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The 4WE6X63-6X/EG24N9/62SO43A-1221A directional spool valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation circuits that require compact flow control. It is built in size 6 so it fits manifolds used with smaller cylinders and motors, and it follows the ISO 4401-03-02-0-05 porting pattern to match standard CETOP 3 subplates. The internal galleries pass up to 80 l/min during direct-current operation, supporting medium-flow actuator groups. A pressure limit of 350 bar on the P, A, and B ports lets the unit work in high-pressure systems, while the T port is restricted to 210 bar to protect the return line. The solenoid operates from a nominal 24 V DC supply with a ±10 percent voltage window, draws 1.25 A, and dissipates 30 W to create the magnetic force needed for shifting. Its winding is rated for a 100 percent duty cycle (S1), allowing the coil to remain energized continuously without overheating.
The valve can switch directions up to 4.2 times per second under direct-current control, enabling rapid response in closed-loop applications. A concealed manual override designated N9 permits manual spool actuation during power loss, and that override tolerates tank pressures up to 50 bar to avoid leakage when used. System oil cleanliness must be held to ISO 4406 class 20/18/15 so the spool lands remain free of abrasive wear. The mounting surface is finished to a roughness of Rzmax 4, ensuring the sealing gasket seats properly and prevents external leakage. Accurate positioning on the subplate is achieved with a locating hole that accepts an ISO 8752-3x8-St spring pin, providing secure retention in high-vibration environments.
Technical Specifications
Duty Cycle
100% (S1)
Fluid Cleanliness
ISO 4406 20/18/15
Locating Hole
ISO 8752-3x8-St
Manual Override
Concealed (N9)
Manual Override Max Tank Pressure
50 bar
Max Operating Pressure (p/a/b)
350 bar
Max Pressure (t Port)
210 bar
Max Switching Frequency (dc)
4.2 1/s
Maximum Flow (dc)
80 l/min
Mounting Surface Roughness
Rzmax 4
Nominal Power (dc Coil)
30 W
Nominal Voltage
24 V DC
Porting Pattern
ISO 4401-03-02-0-05
Rated Current (24 V Dc)
1.25 A
Size
6
Voltage Tolerance
±10%
1620 Old Apex Road
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