Product Description
| Product Number | Control Mode | Specifications | Working Pressure | Characteristic |
| A7VO |
LR CZPT control; HD hydraulic control, related to pilot pressure ; EP CZPT ctrical Control with Proportional; Electromagnet. |
28,55,80,107,160 | Common pressure: 35Mpa, Peak pressure: 40Mpa. |
Axial tapered piston variable displacement pump with oblique shaft structure for open loop hydrostatic transmission; Applicable to the field of walking machinery and Industry; Output flow is proportional to speed and pump displacement. Flow is steplessly adjustable from maximum to zero (qvmax to QV min = 0); Variable modes are suitable for CZPT adjustment and control devices; Strong and compact bearing system with CZPT service life. |
| Safety instructions | ||||
| 1, A7VO pump is designed for open circuit. -Project plHangZhou, installation and commissioning of axial piston unit must be carried out by qualified personnel..; |
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| 2, Before using the axial plunger unit, please read the corresponding manual completely. If necessary, you can get it from Bosch CZPT .; | ||||
| 3,During and shortly after operation, there may be a risk of burning of the axial piston unit (especially the electromagnet). Appropriate safety measures (such as wearing protective clothing) should be taken. – The characteristics of the axial plunger unit may vary with different working conditions (working pressure, oil temperature) of the axial plunger element, the characteristics may change. |
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| Work pipeline oil outlet | ||||
| 1,Oil nozzles and fixed threads are designed for maximum prescribed pressure. CZPT or system manufacturers must ensure that the safety factor of connecting components and pipes meets the specified working conditions (pressure, flow, hydraulic oil, temperature); | ||||
| 2,Work pipeline nozzles and functional nozzles are only used in hydraulic pipelines. Pressure shutoff valves and pressure controllers do not provide overpressure safety protection. Overflow valves will be provided in the hydraulic system; | ||||
| 3,The data and instructions contained here must be followed. – The product cannot be approved as a component that follows the general mechanical safety concept of ISO 13849. – The following tightening torque is used. |
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| Install bolts | ||||
| For installation bolts with ISO metric threads in accordance with DIN 13 standard and with ASME B1.1 standard threads, we recommend that the tightening torque of each box be checked according to VDI 2230. | ||||
| Connector | ||||
| 1,Refer to manufacturer’s instructions for tightening torque of the joints used. | ||||
| Locking screw | ||||
| 1,For the metal locking screw attached to the axial plunger element, the CZPT ening torque MV required for the locking screw is applied. For numerical values, see the table below. | ||||
| R957152287 | A7VO28HD1/63L-NSB01 |
| R957154808 | A7VO28HD1/63L-NZB01 |
| R957117903 | A7VO28HD1/63L-NZB01 |
| R957145590 | A7VO28HD1/63L-VZB01 |
| R957152261 | A7VO28HD1/63R-NPB01 |
| R957152271 | A7VO28HD1/63R-NSB01 |
| R9 0571 4946 | A7VO28HD1G/61L-PZB01 |
| R95715716 | A7VO55HD1/63L-VZB01 |
| R957122265 | A7VO55HD1/63L-VZB01 |
| R957150889 | A7VO55HD1/63R-NPB01 |
| R957150980 | A7VO55HD1/63R-NSB01 |
| R90961571 | A7VO55HD1/63R-NZB01 |
| R95717 0571 | A7VO55HD1/63R-NZB01 |
| R957129182 | A7VO55HD1/63R-NZB01 |
| R957122394 | A7VO80LR/63L-NZB01 |
| R957149224 | A7VO80LR/63L-VZB01 |
| R95715716 | A7VO80LR/63R-NPB01 |
| R957122406 | A7VO80LR/63R-NPB01 |
| R957107049 | A7VO80LR/63R-NPB01 |
| R95715715 | A7VO80LR/63R-NPB01 |
| R909428911 | A7VO107HD1D/61L-PZB01 |
| R9 0571 4619 | A7VO107HD1D/61R-PPB01 |
| R909428909 | A7VO107HD1D/61R-PZB01 |
| R957106723 | A7VO107HD1G/63L-NZB01 |
| R957153996 | A7VO107HD1G/63L-NZB01 |
| R957117623 | A7VO160HD2/63R-NPB01 |
| R957192731 | A7VO160HD2/63R-NPB01-E |
| R957109567 | A7VO160HD2/63R-NZB01 |
| R95717115 | A7VO160HD2/63R-VZB01 |
| R9 0571 3393 | A7VO160HD2D/61R-PPB01 |
