Bosch Rexroth | SYHDFEE-1X250R-VZB25U99-0576-A0A1V
SYHDFEE-1X/250R-VZB25U99-0576-A0A1V
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The SYHDFEE-1X/250R-VZB25U99-0576-A0A1V is produced by Bosch Rexroth for the SYD Hydraulic Control Systems series and regulates fluid power in automated hydraulic circuits. The internal displacement is 250 cm³, giving a fixed volume of oil for each shaft revolution. A nominal flow capacity of 475 l/min permits the unit to supply large actuators without starvation, and speeds up to 1900 rpm allow high-throughput operation. The drive section can deliver 1391 Nm of torque at 350 bar, matching the maximum operating pressure sustained by the housing and porting. A moment of inertia of 0.0959 kg·m² defines the rotational acceleration load placed on the prime mover. Control electronics run from a 24 VDC source, and hydraulic Port Z is machined with an M14 × 1.5 thread to accept standard metric fittings.
The electronic stage draws a peak of 1.25 A during transients and settles to a rated 0.6 A in continuous service, while the input signal path presents a 100 Ω load for current commands. Pressure feedback is provided by an analog output that can source up to 1.5 mA, and a separate monitor line offers a maximum of 10 V for voltage-based indication. Port Z tolerates absolute pressures up to 50 bar so pilot passages remain protected under surge conditions. The supply section remains functional between 22.8 VDC and 33.6 VDC, ensuring operation during battery dips or charger peaks. These electrical and hydraulic limits combine to maintain stable positioning and reliable force control in closed-loop automation.
Technical Specifications
Analog Output Max Current
1.5 mA
Current Input Load
100 Ω
Displacement
250 cm3
Maximum Current
1.25 A
Maximum Flow (nnom)
475 l/min
Maximum Operating Pressure
350 bar
Maximum Speed (vg Max)
1900 rpm
Maximum Torque (350 Bar)
1391 Nm
Moment Of Inertia
0.0959 kgm2
Nominal Supply Voltage
24 VDC
Port Z Max Absolute Pressure
50 bar
Port Z Thread
M14 x 1.5
Pressure Output Max Voltage
10 V
Rated Current
0.6 A
Supply Voltage Maximum
33.6 VDC
Supply Voltage Minimum
22.8 VDC
1620 Old Apex Road
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