R902422014 A4FO250/30R-VPB25K02 REXROTH HIGH PRESSURE HYDRAULIC OPEN CIRCUIT PUMP
Basic Info.
After-sales Service
Free Warranty
Structure
Axial Plunger Pump
Cylinder Number
Single Cylinder
Drive Mode
Mechanically Driven Pump
Pump Shaft Position
Horizontal
Straight Shaft Swashplate Piston Type
Pressureoil
Radial Plunger Pump Type
Valve with Flow
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Transport Package
Wooden Box
Product Description
Technical data
Sizes 22 and 28
-- Nominal pressure 400 bar
-- Maximum pressure 450 bar
Sizes 71 to 500
-- Nominal pressure 350 bar
-- Maximum pressure 400 bar
Features
Fixed pump in axial piston swashplate design for hydrostatic drives in an open circuit
For use in mobile and stationary applications
Flow is proportional to the drive speed and displacement.
High power density
High total efficiency
Optimized dimensions for special installation situations
Excellent suction characteristics
Low noise level
Long service life
Economical design
Through drive for combining additional pumps
Technical data Size | NG | | 22 | 28 | 71 | 125 | 180 | 250/H1) | 500/H1) |
Displacement, geometric, per revolution | Vg | cm3 | 22 | 28 | 71 | 125 | 180 | 250 | 500 |
Maximum rotational speed2) | nnom | rpm | 3600 | 3000 | 2200 | 1800 | 1800 | 1500 / 1900 | 1320 /1500 |
Maximum rotational speed3) | nmax | rpm | 4500 | 3750 | 2700 | 2200 | 2100 | 1800 / 2100 | 1600 / 1800 |
Flow at Vg and nnom | qV | l/min | 79 | 84 | 156 | 225 | 324 | 375 / 475 | 660 / 750 |
Power at Vg, nnom and Δp = 400 bar | P | kW | 53 | 56 | 914) | 1314) | 1894) | 219 / 2774) | 385 / 4384) |
Torque at Vg and Δp = 400 bar | T | Nm | 140 | 178 | 3964) | 6964) | 10034) | 13934) | 27854) |
Rotary stiffness drive shaft | Shaft end S | c | kNm/rad | 29,9 | 29,9 | - | - | - | - | - |
Shaft end P | c | kNm/rad | - | - | 146 | 260 | 328 | 527 | 1145 |
Shaft end Z | c | kNm/rad | - | - | 146 | 263 | 332 | 543 | 1136 |
Moment of inertia for rotary group | JGR | kgm2 | 0,0017 | 0,0017 | 0,0121 | 0,0300 | 0,055 | 0,0959 | 0,3325 |
Maximum angular acceleration | a | rad/s2 | 38000 | 38000 | 20000 | 13000 | 10000 | 8000 | 4800 |
Case volume | V | l | 0,3 | 0,3 | 2,0 | 3,0 | 4,0 | 7,0 | 11,0 |
Weight (approx.) | m | kg | 13,5 | 13,5 | 34 | 61 | 76 | 120 | 220 |

