Highlight: | rexroth gear pump |
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rexroth hydraulic pump
1.manufacture Rexroth A4VG28-250 series hydraulic pump
2,Speed range:2400-4250
3,Displacement:28-250
Model Number: | A4VG250 |
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Theory: | Axial Flow Pump |
Structure: | Piston Pump |
Usage: | Oil |
Power: | Hydraulic |
Standard or Nonstandard: | Standard |
Fuel: | hydraulic oil |
Pressure: | High Pressure |
Application: | Maritime |
A4VG series hydraulic axial variable pump:
Sizes 28...250
Axial piston swashplate design
Series 3
Closed circuits
Nominal pressure: 400 bar
Peak pressure: 450 bar
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Variable pump, reversible, all components integrated for closed circuits
For applications in the high pressure range up to 450 bar Integrated auxiliary pump for boost and control oil supply Combined boost and high-pressure relief valves Boost pressure relief valve Possible to mount additional pumps on through drive up to the same nominal size Large variety of controls |
Size | 28 | 40 | 56 | 71 | 90 | 125 | 180 | 250 | |||
Displacement | Vg max | cm³ | 28 | 40 | 56 | 71 | 90 | 125 | 180 | 250 | |
Speed | at Vg max | nmax | rpm | 4250 | 4000 | 3600 | 3300 | 3050 | 2850 | 2500 | 2400 |
Speed 1) | intermittent | nmax interm | rpm | 5000 | 5000 | 4500 | 4100 | 3800 | 3450 | 3000 | 2700 |
Flow | at nmax | qVmax | l/min | 119 | 160 | 202 | 234 | 275 | 356 | 450 | 600 |
Power | Δp = 400 bar | Pmax | kW | 79 | 107 | 134 | 156 | 183 | 237 | 300 | 400 |
Torque | Δp = 400 bar | Tmax | Nm | 178 | 255 | 356 | 451 | 572 | 795 | 1144 | 1590 |
Weight (approx.) | m | kg | 29 | 31 | 38 | 50 | 60 | 80 | 101 | 156 |