| Model: | A4VTG 071/090 |
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| Brand: | Rexroth |
| Origin: | Made In China |
| Category: | Industrial Supplies / Machinery / Hydraulic Pressure Machine & Parts |
| Label: | - |
| Price: |
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| Min. Order: | 1 pc |
| Last Online:02 Sep, 2019 |
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series |
A4VTG Series High Pressure Piston Pumps |
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Specifications |
071、090 |
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Working pressure |
Nominal pressure 40 MPa, peak pressure 45 MPa |
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Control mode: HW1 - Hydraulic proportional control, mechanical servo, rear handle type hexagonal shaft; EP3 - Electric proportional control with emergency start and spring reset U = 12VDC EP4 - Electric proportional control with emergency start and spring reset U = 24VDC A-High Pressure Relief Valve with Direct Control
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Characteristic |
_Swashplate design axial piston variable displacement pump for hydrostatic transmission in closed circuit The flow rate is proportional to the driving speed and displacement. With the increase of the angle of the swashplate from zero to its maximum, the flow rate increases. When the swashplate passes through the middle, the direction of hydraulic oil flow will change smoothly. High-pressure oil outlet is equipped with two pressure relief valves to prevent static transmission (pump and motor) from overloading. High pressure relief valve can also be used as a filling valve. _Built-in refueling pump acts as feed pump and controls pressure supply; Maximum filling pressure is limited by built-in filling relief valve. |
Safety instructions:
A4VTG pump is designed for closed circuit.
Project planning, assembly and commissioning of axial plunger components must be carried out by qualified personnel.
Work pipeline nozzles and functional nozzles are only designed for hydraulic pipelines.
- Axial plunger units (especially electromagnets) may be at risk of burning during and shortly after operation. Appropriate safety measures (such as wearing protective clothing) should be taken.
Depending on the different working conditions (working pressure, oil temperature) of the axial plunger element, the characteristics may change.
Pressure nozzle:
Oil nozzles and fixed threads are designed for maximum specified pressure. Machine or system manufacturers must ensure that the safety factor of connecting components and pipes meets the specified working conditions (pressure, flow, hydraulic oil, temperature).
- The data and instructions contained here must be followed.
Use the following tightening torque:
· Thread holes of axial plunger elements:
The maximum allowable tightening torque MG Max is the maximum value for threaded holes and shall not exceed that value.
· Connector:
Refer to the manufacturer's instructions for the tightening torque of the joints used.
· Fixed screw:
For the fixed screw which meets DIN 13 standard, we s est that the tightening torque should be checked separately according to VDI 2230.
· Locking screw:
For the metal locking screw attached to the axial plunger element, the fastening torque MV required for the locking screw is applied. For numerical values, see the table below.
The product is not certified as a component that meets the requirements of DIN EN ISO 13849's General Machine Safety Concept.
