Bosch Rexroth | 4WRBKE35W3-1100SJ-1X6ZG24EK31A1D3M
4WRBKE35W3-1100SJ-1X/6ZG24EK31/A1D3M
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The 4WRBKE35W3-1100SJ-1X/6ZG24EK31/A1D3M valve is manufactured by Bosch Rexroth as part of the 4WRBKE OBE Valves series and serves as an electro-hydraulic proportional element for automated flow control. It operates on a 24 V DC supply voltage, permitting direct tie-in to machine power buses, and its electronics interpret a ±10 V input signal so the control system can vary spool position continuously. A nominal flow of 1100 l/min at a 10 bar differential supports large-volume circuits, while a maximum working pressure of 350 bar at ports p, A, and B makes the unit suitable for high-pressure lines. The spool travels through a ±12.5 mm stroke to provide a broad metering range, and peak power consumption is limited to 40 VA to simplify power supply sizing. An IP65 housing prevents dust ingress and water jet damage, enabling installation on exposed manifolds, and the assembly weighs 80.8 kg, which influences manifold design and handling procedures.
The valve sustains continuous service because the duty cycle is 100 %, eliminating the need for cooldown intervals. Hysteresis stays below 0.3 % so commanded positions repeat with minimal deviation, and maximum positioning accuracy of 0.5 % helps keep actuator velocity stable in closed-loop drives. When pilot supply X is held at 100 bar, the response time does not exceed 140 ms, allowing predictable acceleration in motion profiles. Reliable operation requires a minimum pilot pressure of 15 bar to keep the control stage active. Port T may tolerate up to 250 bar, the external pilot line X can withstand 280 bar, and the external drain Y is limited to 50 bar; these limits guide circuit design and manifold channel ratings. Together, the continuous duty capability, tight hysteresis, defined response behavior, and specific pressure boundaries support precise long-term control in hydraulic automation systems.
Technical Specifications
Degree Of Protection
IP65
Duty Cycle
100 %
Hysteresis (max)
0.3 %
Input Signal
±10 V
Max Pressure In T (y Ext)
250 bar
Max Pressure In X (ext)
280 bar
Max Pressure In Y (ext)
50 bar
Max Working Pressure (p, A, B)
350 bar
Min Pilot Pressure
15 bar
Nominal Flow (Δp=10 Bar)
1100 l/min
Positioning Accuracy (max)
0.5 %
Power Consumption (max)
40 VA
Response Time (max, X=100 Bar)
140 ms
Spool Stroke (±)
12.5 mm
Supply Voltage
24 V DC
Weight
80.8 kg
1620 Old Apex Road
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