Rexroth A7VO28 axial piston hydraulic pump
- Product Details
- Product Model
- FAQ
The Rexroth A7VO28 is a heavy-duty, variable displacement axial piston pump designed on the robust bent-axis principle. It operates at high pressures (typically up to 400+ bar) and provides a variable flow output, with the "28" indicating a nominal displacement of 28 cc/rev. Its flow is controlled by adjusting the angle between the cylinder block and drive shaft, often via hydraulic (e.g., pressure compensation, load sensing) or electro-proportional controls. This design delivers high power density, efficiency, and reliability, making it a preferred choice for demanding open-circuit applications in mobile machinery (like excavators and cranes) and industrial systems.
Specifications
| Size | NG | 28 | 55 | 80 | 107 | 160 | |||
| Displacement geometric, per revolution | Vg | cm3 | 28.1 | 54.8 | 80 | 107 | 160 | ||
| Speed maximum | at Vg max | nnom | rpm | 3150 | 2500 | 2240 | 2150 | 1900 | |
| at Vg<0.74⋅Vg max | nmax1 | rpm | 4250 | 3400 | 3000 | 2900 | 2560 | ||
| Speed maximum | nmax2 | rpm | 4750 | 3750 | 3350 | 3200 | 2850 | ||
| Flow at nnom and Vg max | qv | L/min | 89 | 137 | 179 | 230 | 304 | ||
| Power at nnom, Vg max and Δp=350 bar | P | kW | 52 | 80 | 105 | 134 | 177 | ||
| Torque at Vg max and Δp=350 bar | T | Nm | 156 | 305 | 446 | 596 | 891 | ||
| Rotary stiffness | Vgmax to Vg/2 | cmin | Nm/rad | 5548 | 10594 | 15911 | 21469 | 36073 | |
| Vg/2 to 0(interpolated) | cmax | Nm/rad | 16541 | 32103 | 48971 | 67666 | 104622 | ||
| Moment of inertia for rotary group | JGR | kgm2 | 0.0042 | 0.0042 | 0.0080 | 0.0127 | 0.0253 | ||
| Maximum angular acceleration | α | rad/s2 | 35900 | 31600 | 24200 | 19200 | 15300 | ||
| Case volume | V | L | 0.5 | 0.75 | 1.2 | 1.5 | 2.4 | ||
| Mass (approx.) | m | kg | 17 | 25 | 40 | 49 | 71 | ||
Selection Table
| A7VO28 axial piston hydraulic pump | |
| Model No. | Model Code |
| R909427930 | A7VO28DR/61L-DPB01 |
| R902006907 | A7VO28DR/61L-NPB01 |
| R909429961 | A7VO28DR/61L-PPB01 |
| R909428508 | A7VO28DR/61L-PZB01 |
| R909437495 | A7VO28DR/61L-WZB01-S |
| R909611071 | A7VO28DR/61R-DPB01 |
| R909427932 | A7VO28DR/61R-PPB01 |
| R909429957 | A7VO28DR/61R-PZB01 |
| R909448625 | A7VO28DR/61R-VPB01 |
| R909603467 | A7VO28DR/61R-WPB01 |
| R902011918 | A7VO28DR/63L-NPB01 |
| R902216685 | A7VO28DR/63L-NPB01 |
| R902226332 | A7VO28DR/63L-NPB01 |
| R902226269 | A7VO28DR/63L-NPB01 |
| R902153660 | A7VO28DR/63L-NPB01-E |
| R902052283 | A7VO28DR/63L-NSB01 |
| R986110760 | A7VO28DR/63L-NZB01 |
| R902014332 | A7VO28DR/63L-NZB01 |
| R902207413 | A7VO28DR/63L-NZB01 |
| R986110759 | A7VO28DR/63L-NZB01 |
| R902218609 | A7VO28DR/63L-NZB01 |
| R902207414 | A7VO28DR/63L-NZB01 |
| R902253654 | A7VO28DR/63L-VPB01 |
| R902011753 | A7VO28DR/63R-NPB01 |
| R902223292 | A7VO28DR/63R-NPB01 |
| R902241940 | A7VO28DR/63R-NPB01 |
| R902235100 | A7VO28DR/63R-NPB01 |
| R902233942 | A7VO28DR/63R-NPB01 |
| R902233708 | A7VO28DR/63R-NPB01 |
| R902227748 | A7VO28DR/63R-NPB01 |
| R902223252 | A7VO28DR/63R-NPB01 |
| R902223310 | A7VO28DR/63R-NPB01 |
| R902218610 | A7VO28DR/63R-NPB01 |
| R902052267 | A7VO28DR/63R-NSB01 |
| R902009985 | A7VO28DR/63R-NZB01 |
| R902222495 | A7VO28DR/63R-NZB01 |
| R902049295 | A7VO28DR/63R-NZB01-S |
| R902016759 | A7VO28DR/63R-VPB01 |
| R902247257 | A7VO28DR/63R-VPB01 |
| R902247001 | A7VO28DR/63R-VPB01 |
| R902124198 | A7VO28DR/63R-VPB01-E |
| R909447550 | A7VO28DRG/61L-PPB01 |
| R909437645 | A7VO28DRG/61L-PZB01 |
| R909603890 | A7VO28DRG/61L-PZB01-S |
| R909437432 | A7VO28DRG/61R-PPB01 |
| R909438240 | A7VO28DRG/61R-PZB01 |
| R909447997 | A7VO28DRG/61R-PZB01-S |
| R902182092 | A7VO28DRG/63L-NPB01 |
| R902156383 | A7VO28DRG/63L-NZB01 |
| R902030834 | A7VO28DRG/63L-NZB01-Y |
| R902027186 | A7VO28DRG/63R-NPB01 |
| R902226325 | A7VO28DRG/63R-NPB01 |
| R902036728 | A7VO28DRG/63R-NZB01 |
| R902218611 | A7VO28DRG/63R-NZB01 |
| R902217995 | A7VO28DRG/63R-NZB01 |
| R902033191 | A7VO28DRG/63R-NZB01-S |
| R902077226 | A7VO28DRG/63R-NZB01-S |
| R902227822 | A7VO28DRG/63R-NZB01-S |
| R902218612 | A7VO28DRG/63R-NZB01-S |
| R902194493 | A7VO28DRG/63R-VPB01 |
| R909438661 | A7VO28DRM/61R-PPB01 |
| R902075392 | A7VO28DRM/63L-NPB01 |
| R902052307 | A7VO28DRM/63L-NZB01 |
| R902043907 | A7VO28DRM/63R-NPB01 |
| R902092771 | A7VO28DRM/63R-NPB01-E |
| R909434538 | A7VO28DRS/61L-PZB01 |
| R909448605 | A7VO28DRS/61L-VPB01 |
| R909438445 | A7VO28DRS/61L-VZB01-S |
| R909434536 | A7VO28DRS/61R-PZB01 |
| R902011807 | A7VO28DRS/63L-NZB01 |
| R902009978 | A7VO28DRS/63R-NZB01 |
| R902253863 | A7VO28DRS/63R-NZB01 |
| R902170371 | A7VO28DRS/63R-NZB01 |
| R909433037 | A7VO28EP/61L-PPB01 |
| R909433351 | A7VO28EP/61L-PZB01 |
| R909610452 | A7VO28EP/61R-DPB01 |
| R909433035 | A7VO28EP/61R-PPB01 |
| R909433350 | A7VO28EP/61R-PZB01 |
| R902052279 | A7VO28EP/63L-NPB01 |
| R902052289 | A7VO28EP/63L-NSB01 |
| R902052263 | A7VO28EP/63R-NPB01 |
| R902218613 | A7VO28EP/63R-NPB01 |
| R902151642 | A7VO28EP/63R-NPB01-E |
| R902094658 | A7VO28EP/63R-NPB01-S |
| R902226175 | A7VO28EP/63R-NPB01-S |
| R902052273 | A7VO28EP/63R-NSB01 |
| R902060408 | A7VO28EP/63R-NZB01 |
| R902227984 | A7VO28EP/63R-PPB01 |
| R902075420 | A7VO28EP/63R-VPB01 |
| R902253697 | A7VO28EP2/63L-VPB01H |
| R909603770 | A7VO28EPG/61L-PPB01 |
| R902215043 | A7VO28EPG/63L-NZB01 |
| R902063957 | A7VO28EPG/63R-NPB01 |
| R902126868 | A7VO28EPG/63R-NZB01 |
| R909433033 | A7VO28HD1/61L-PZB01 |
| R909433031 | A7VO28HD1/61R-PZB01 |
| R902052277 | A7VO28HD1/63L-NPB01 |
| R902052287 | A7VO28HD1/63L-NSB01 |
| R902054808 | A7VO28HD1/63L-NZB01 |
| R902217903 | A7VO28HD1/63L-NZB01 |
| R902245590 | A7VO28HD1/63L-VZB01 |
| R902052261 | A7VO28HD1/63R-NPB01 |
| R902052271 | A7VO28HD1/63R-NSB01 |
| R909434946 | A7VO28HD1G/61L-PZB01 |
| R909434820 | A7VO28HD1G/61R-DPB01 |
| R902194386 | A7VO28HD1G/63R-NPB01 |
| R909433389 | A7VO28HD2/61R-PPB01 |
| R902070891 | A7VO28HD2/63R-NPB01 |
| R909429959 | A7VO28LR/61L-PPB01 |
| R909428504 | A7VO28LR/61L-PZB01 |
| R909434600 | A7VO28LR/61R-DPB01 |
| R909427934 | A7VO28LR/61R-PPB01 |
| R909429956 | A7VO28LR/61R-PZB01 |
| R909448626 | A7VO28LR/61R-WPB01 |
| R902052275 | A7VO28LR/63L-NPB01 |
| R902223331 | A7VO28LR/63L-NPB01 |
| R902052281 | A7VO28LR/63L-NSB01 |
| R902011669 | A7VO28LR/63R-NPB01 |
| R902205926 | A7VO28LR/63R-NPB01 |
| R902092020 | A7VO28LR/63R-NPB01-E |
| R902092014 | A7VO28LR/63R-NPB01-E |
| R902052265 | A7VO28LR/63R-NSB01 |
| R902028654 | A7VO28LR/63R-NZB01 |
| R902222191 | A7VO28LR/63R-NZB01 |
| R902223463 | A7VO28LR/63R-VPB01 |
| R909429960 | A7VO28LRD/61L-PPB01 |
| R909428506 | A7VO28LRD/61L-PZB01 |
| R909446018 | A7VO28LRD/61R-DPB01 |
| R909603808 | A7VO28LRD/61R-NPB01 |
| R909429958 | A7VO28LRD/61R-PPB01 |
| R909437016 | A7VO28LRD/61R-PPB01-S |
| R909428502 | A7VO28LRD/61R-PZB01 |
| R902047387 | A7VO28LRD/63L-NPB01 |
| R902247405 | A7VO28LRD/63L-NPB01 |
| R902207488 | A7VO28LRD/63L-NPB01 |
| R902208908 | A7VO28LRD/63L-NPB01 |
| R902052285 | A7VO28LRD/63L-NSB01 |
| R902038786 | A7VO28LRD/63L-NZB01 |
| R902215349 | A7VO28LRD/63L-NZB01 |
| R902247136 | A7VO28LRD/63R-NPB01 |
| R902047391 | A7VO28LRD/63R-NPB01 |
| R902170308 | A7VO28LRD/63R-NPB01 |
| R902218614 | A7VO28LRD/63R-NPB01 |
| R902211610 | A7VO28LRD/63R-NPB01 |
| R902223145 | A7VO28LRD/63R-NPB01 |
| R902052269 | A7VO28LRD/63R-NSB01 |
| R902052356 | A7VO28LRD/63R-NZB01 |
| R902226491 | A7VO28LRD/63R-VPB01 |
| R909438267 | A7VO28LRDG/61L-DZB01-S |
| R909603393 | A7VO28LRDG/61R-DZB01 |
| R902110150 | A7VO28LRDG/63L-VZB01 |
| R902027438 | A7VO28LRDG/63R-VZB01 |
| R909447369 | A7VO28LRDH1/61R-PPB01 |
| R909433039 | A7VO28LRDH5/61R-PPB01 |
| R902000232 | A7VO28LRDM/61R-PZB01 |
| R902014315 | A7VO28LRDM/63R-NZB01 |
| R909437530 | A7VO28LRDS/61R-PPB01 |
| R902223052 | A7VO28LRDS/63R-VZB01-S |
| R902004451 | A7VO28LRG/61L-NPB01 |
| R909603979 | A7VO28LRG/61R-PPB01 |
| R909448721 | A7VO28LRG/61R-PZB01 |
| R902110124 | A7VO28LRG/63R-NPB01 |
| R902217845 | A7VO28LRG/63R-NPB01 |
| R902132284 | A7VO28LRG/63R-NZB01 |
| R909434219 | A7VO28LRH1/61L-PZB01 |
| R909603141 | A7VO28LRH1/61R-PPB01 |
| R909434217 | A7VO28LRH1/61R-PZB01 |
| R902156164 | A7VO28LRH1/63L-NPB01-S |
| R902045169 | A7VO28LRH1/63L-NZB01-S |
| R902080745 | A7VO28LRH1/63R-NPB01-S |
| R902036955 | A7VO28LRH1/63R-NZB01-S |
| R902045215 | A7VO28LRH1/63R-NZB01-S |
| R909434822 | A7VO28LRH5/61R-PPB01 |
| R909441578 | A7VO28LRH5/61R-PZB01 |
| R909437751 | A7VO28LRM/61R-DPB01 |
| R909446742 | A7VO28LRM/61R-PPB01 |
| R909434639 | A7VO28LRM/61R-PZB01 |
| R909438284 | A7VO28SR/61L-PZB01 |
| R909446543 | A7VO28XXM/61R-NPB01-S |
| R992002025 | A7VO28DRG/63R-NZB01-S |
| R902276831 | A7VO28LRD/63R-NZB01 |
| R900991602 | A7VO28HD2/63L-NZB01 |
| R900991262 | A7VO28HD2/63R-NZB01 |
| R900056344 | A7VO28LRD/63L-NZB01 |
Q1:For what types of applications is the A7VO28 pump commonly used?
A1:The A7VO28 hydraulic pump is commonly used in demanding open-circuit applications, particularly in mobile machinery such as excavators, cranes, and wheel loaders, as well as in various industrial hydraulic systems.
Q2:How is the flow of the A7VO28 hydraulic pump controlled?
A2:The flow of the A7VO28 hydraulic pump is controlled by varying the tilt angle of its cylinder block. This is commonly achieved through integrated control devices such as pressure compensators (HD controls), load-sensing regulators (LR controls), or electro-proportional valves (EP controls).
Q3:How to purchase an A7VO28 hydraulic pump?
A3:You can click on the right sidebar or the contact information in the top bar to contact us to purchase. You can do so via email, form, WeChat, WhatsApp, or other methods.
Q4:What is the price and delivery time of the A7VO28 hydraulic pump?
A4:The specific price and delivery time will be provided based on the specific model you provide.
