Bosch Rexroth | 4WRLE16WZ180SJ-3XG24K0A1M
4WRLE16WZ180SJ-3X/G24K0/A1M
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The 4WRLE16WZ180SJ-3X/G24K0/A1M valve belongs to the 4WRL Solenoid Valves series produced by Bosch Rexroth for proportional control tasks in hydraulic automation. The unit has a nominal size of 16, establishing the port geometry for manifold blocks and line fittings. It can deliver up to 800 l/min, enabling high-flow circuits to operate without restrictive pressure drops. Ports p, a, and b tolerate 270 bar, while ports t and y are limited to 210 bar to protect return channels. The main spool moves from zero to full stroke in 85 ms, giving quick response to command changes. Hysteresis remains under 0.1%, so position repeatability is maintained during fine control loops. A 100 % duty cycle allows the solenoid to stay energized continuously without thermal derating. Stable operation is secured when a pilot supply of at least 10 bar is present, and the coil is powered from a 24 V DC source commonly found in machine controllers.
The integrated electronics accept a ±10 V reference signal, letting external motion controllers modulate flow and pressure proportionally. Peak electrical demand is 40 VA, so cabinet power supplies can be sized accordingly. A 2.5 A time-lag fuse is specified to protect the supply wiring against overcurrent conditions. The solenoid surface may reach 120 °C at full load, which guides enclosure ventilation and cable selection. With an IP65 rating, the housing withstands dust ingress and water jets encountered in industrial environments. NBR seals are installed to ensure compatibility with standard hydraulic oils and to maintain leakage control over time. The assembly weighs 12 kg, allowing a single technician to mount it on a subplate or manifold. This feature set rounds out a proportional valve suited for precise, continuous duty in high-pressure hydraulic systems.
Technical Specifications
Actuating Time (0–100%)
85 ms
Duty Cycle
100%
Fuse Protection
2.5 A (time-lag)
Hysteresis (max)
0.1%
Input Signal (a1)
±10 V
Max Operating Pressure (p/a/b)
270 bar
Max Operating Pressure (t/y)
210 bar
Max Power Consumption
40 VA
Max Solenoid Surface Temp
120 °C
Maximum Flow
800 l/min
Minimum Pilot Pressure
10 bar
Nominal Size
16
Protection Class
IP65
Seal Material
NBR
Supply Voltage
24 V DC
Weight
12 kg
1620 Old Apex Road
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