Bosch Rexroth | 3WRCBH32VF380M-1XM-127
3WRCBH32VF380M-1X/M-127
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The 3WRCBH32VF380M-1X/M-127 valve belongs to the 3WRCBH Cartridge Valves series and is produced by Bosch Rexroth for hydraulic automation tasks such as pressure control in high-flow circuits. It fits a nominal size 32 cavity, so block machining follows standard dimensions. A rated flow of 380 l/min enables steady delivery in typical duty cycles, while a maximum operating pressure of 315 bar lets the unit survive heavily loaded systems. The actuating time from port a to x is 28 ms, giving rapid switching that supports closed-loop servo applications. An area ratio of 1 : 1.5 balances hydraulic forces between the pilot and main poppet to minimize actuation effort. The pilot stage requires 16 l/min, guaranteeing reliable movement without excessive control loss. When the spool is fully opened the passage accepts up to 570 l/min, so transient demand peaks are handled without cavitation or undue pressure drop.
The cartridge weighs 5.6 kg, allowing installation by a single technician without lifting equipment. Mounting uses two M16 × 50 ISO 4762 screws; tightening to 250 Nm ± 10% secures the body against the manifold face and prevents leakage under load. Oil cleanliness must meet ISO 4406 18/16/13 to protect the precision-ground sealing edges from abrasive wear. A built-in DC/DC position transducer tracks spool displacement and outputs a linear ±10 V signal that interfaces directly with proportional valve electronics. The transducer consumes 35 mA from a symmetrical ±15 V supply, so panel power budgets remain low. Resistance to vibration up to 25 g keeps both the sensor and the hydraulic components operational on mobile machines or presses where shock and resonance are common, maintaining signal integrity during continuous duty.
Technical Specifications
Actuating Time (a–x)
28 ms
Area Ratio
1:1.5
Cleanliness Class
ISO 4406 18/16/13
Mass
5.6 kg
Maximum Flow
570 l/min
Maximum Operating Pressure
315 bar
Mounting Screw Size
M16 x 50 (ISO 4762)
Mounting Screw Torque
250 Nm (±10%)
Nominal Size
32
Pilot Flow
16 l/min
Position Transducer Type
DC/DC
Rated Flow
380 l/min
Transducer Output Signal
±10 V
Transducer Supply Current (+15 V)
35 mA
Transducer Supply Voltage
±15 V
Vibration Resistance
25 g
1620 Old Apex Road
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