Original Rexroth Piston Pump AP2D28LV1RS7-839-0 Plunger Pump Equivalent
Rexroth Original Piston Pump AP2D28LV1RS7-839-0 Plunger Pump Equivalent
Product Description
A piston pump is a positive displacement pump that uses one or more pistons to move fluid through a system. It works by the reciprocating motion of a piston within a cylinder. As the piston moves, the volume within the cylinder changes, drawing in and out fluid. Typically weighing around 40-45kg, its relatively modest weight facilitates installation and layout in a variety of equipment and systems. 16-36 mm²/s, in this viscosity range, the hydraulic oil can form a good lubrication and sealing effect in the pump, to ensure the efficient operation of the pump, reduce internal leakage and wear. Minimum 10 mm²/s, maximum 1000 mm²/s, but in extreme viscosity conditions, attention should be paid to the possible adverse effects on the start-up, operation and life of the pump. It has a certain maximum pressure rating. This indicates the highest hydraulic pressure that the pump can withstand and generate. High - pressure capabilities make it suitable for applications that require significant force, such as in heavy - duty hydraulic machinery. For example, in a construction - grade hydraulic excavator, this pump can provide the necessary pressure to power the boom and bucket cylinders.
Piston pump advantage
- Reliability: Rexroth is known for its high - quality manufacturing standards. The AP2D28LV1RS7 - 839 - 0 pump is designed and built to withstand the rigors of industrial and mechanical applications. It has a robust construction that reduces the risk of breakdowns and ensures a long service life.
- Precision: The pump offers precise control of flow rate and pressure. This precision is achieved through advanced engineering and high - quality components. In applications that require accurate hydraulic control, such as in precision - machining centers or servo - hydraulic systems, this pump can provide the necessary performance.
- Compatibility: It is designed to be compatible with a wide range of hydraulic fluids and systems. This allows for flexibility in application and integration with different hydraulic setups, making it a versatile choice for various industries.
Technical Parameters:
| 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 n nom | qv | I/min | 79 | 84 | 156 | 225 | 324 | 375 /475 | 660 /750 |
| Power | at Vg, nnom andAp = 400 bar | P | kW | 53 | 56 | 914) | 1314) | 1894) | 219/2774) | 385 /4384) |
| Torque | at Vg and Ap = 400 bar | T | Nm | 140 | 178 | 3964) | 6964) | 10034) | 13934) | 27854) |
| Rotary stiffnessdrive 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 | 1 | 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 | |
Application areas
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