Rexroth AA6vm Hydraulic Motor Used for Logging Machine
| Price: |
US $ 1000-2000/Piece |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,Western Union |
| Prod Model: |
A6VM |
| Model: |
A6vm |
| Original: |
China |
| Application: |
Construction Machinery |
Product Description
hydraulic piston motor A6VM55, A6VM80, A6VM107, A6VM140, A6VM160, A6VM200, A6VM250
Rexroth AA6VM hydraulic motor used for Logging machine
Hydraulic Variable motor A6VM55, A6VM80, A6VM107, A6VM140, A6VM160, A6VM200, A6VM250Open and closed circuitsSeries 63Size Nominal pressure, 28 to 200 (400 bar/450 bar)250 to 1000 (350 bar/400 bar) - Variable A6VM motor with axial tapered piston rotary group of bent axial design, for hydrostatic drives in open and closed circuits- For use in mobile and stationary applications- The wide control range enables the variable motor to satisfy the requirement for high speed and high torque.- The displacement can be infinitely changed from Vg max to Vg min = 0.- The output speed is dependent on the flow of the pump and the displacement of the motor.- The output torque increases with the pressure differential between the high-pressure and low-pressure side and with increasing displacement.- Wide control range with hydrostatic transmissions- Wide selection of control devices- Cost savings through elimination of gear shifts and possibility of using smaller pumps- Compact, robust motor with long service life- High power density- Good starting characteristics- Small swing torque Technical Data of Brueninghaus Hydromatik Rexroth A6VM MotorTable of values (theoretical values, without efficiency and tolerances; values rounded)| Rexroth A6VM motor | A6VM55 | A6VM80 | A6VM107 | A6VM140 | A6VM160 | A6VM200 | A6VM250 |
| Nominal pressure | p N | bar | 400 | 400 | 400 | 400 | 400 | 400 | 350 |
| Maximum pressure | pmax | bar | 450 | 450 | 450 | 450 | 450 | 450 | 400 |
| Displacement | Vg max | cm³ | 54.8 | 80 | 107 | 140 | 160 | 200 | 250 |
| Speed | at V g max | n max | rpm | 4450 | 3900 | 3550 | 3250 | 3100 | 2900 | 2700 |
| Speed | at V g<V g max | n max | rpm | 7000 | 6150 | 5600 | 5150 | 4900 | 4600 | 3600 |
| Inlet flow | at nmax | q V max | l/min | 244 | 312 | 380 | 455 | 496 | 580 | 675 |
| Torque | Δ p = 400 bar | T | Nm | 349 | 509 | 681 | 891 | 1019 | 1273 | 1391 |
| Weight (approx.) | m | kg | 26 | 34 | 47 | 60 | 64 | 80 | 90 |
Hydraulic fluidBefore starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids), RE 90222 (HFD hydraulic fluids) and RE 90223 (HFA, HFB, HFC hydraulic fluids) for detailed information regarding the choice of hydraulic fluid and application conditions.The variable motor A6VM is not suitable for operation with HFA hydraulic fluid. If HFB, HFC, or HFD or environmentally acceptable hydraulic fluids are used, the limitations regarding technical data or other seals must be observed.Details regarding the choice of hydraulic fluidThe correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature: in a closed circuit, the circuit temperature, in an open circuit, the reservoir temperature.The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range.We recommended that the higher viscosity class be selected in each case.Example: At an ambient temperature of X °C, an operating temperature of 60 °C is set in the circuit. In the optimum viscosity range, this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68.Note: The case drain temperature, which is affected by pressure and speed, can be higher than the circuit temperature or reservoir temperature. At no point of the component may the temperature be higher than 115 °C. The temperature difference specified is to be taken into account when determining the viscosity in the bearing.Temperature rangeThe FKM shaft seal may be used for case drain temperatures from -25 °C to +115 °C.Note: For application cases below -25 °C, an NBR shaft seal is required (permissible temperature range: -40 °C to +90 °C).State NBR shaft seal in plain text when ordering.Shaft sealThe service life of the shaft seal is influenced by the speed of the axial piston unit and the case drain pressure (case pressure).The mean differential pressure of 2 bar between the case and the ambient pressure may not be enduringly exceeded at normal operating temperature. For a higher differential pressure at reduced speed, see diagram. Momentary pressure spikes (t < 0.1 s) of up to 10 bar are permitted. The service life of the shaft seal decreases with an increase in the frequency of pressure spikes.The case pressure must be equal to or higher than the ambient pressure.HD - Proportional control hydraulicThe proportional hydraulic control provides infinite setting of the displacement, proportional to the pilot pressure applied toport X. - Beginning of control at Vg max (maximum torque, minimum speed at minimum pilot pressure) - End of control at Vg min (minimum torque, maximum permissible speed at maximum pilot pressure)Note- Maximum permissible pilot pressure: pSt = 100 bar- The control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, an auxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressures, please contact us.Please note that pressures up to 450 bar can occur at port G.- Please state the desired beginning of control in plain text when ordering, e. g.: beginning of control at 10 bar.- The beginning of control and the HD characteristic are influenced by the case pressure. An increase in case pressure causes an increase in the beginning of control and thus a parallel shift of the characteristic.- A leakage flow of maximum 0.3 L/min can escape at port X due to internal leakage (operating pressure > pilot pressure).The control is to be suitably configured to avoid an independent build-up of pilot pressure.EP - Proportional control electricThe proportional electric control provides infinite setting of the displacement, proportional to the control current applied to thesolenoid (sizes 28 to 200) or proportional valve (sizes 250 to 1000). For sizes 250 to 1000, the pilot oil supply at port P requires anexternal pressure of pmin = 30 bar (pmax = 100 bar). - Beginning of control at Vg max (maximum torque, minimum speed at minimum control current) - End of control at Vg min (minimum torque, maximum permissible speed at maximum control current)NoteThe control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, an auxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressures, Please note that pressures up to 450 bar can occur at port G.The following only needs to be noted for sizes 250 to 1000:- The beginning of control and the EP characteristic are influenced by the case pressure. An increase in case pressurecauses an increase in the beginning of control and thus a parallel shift of the characteristic.HZ - Two-point control hydraulicThe two-point hydraulic control allows the displacement to be set to either Vg min or Vg max by switching the pilot pressure atport X on or off. - Position at Vg max (without pilot pressure, maximum torque, minimum speed) - Position at Vg min (with pilot pressure > 10 bar activated, minimum torque, maximum permissible speed)Note- Maximum permissible pilot pressure: 100 bar- The control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, an auxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressures, Please note that pressures up to 450 bar can occur at port G.- A leakage flow of maximum 0.3 L/min is present at port X (operating pressure > pilot pressure). To avoid a build-up of pilot pressure, pressure is to be relieved from port X to the reservoir.EZ - Two-point control electricThe two-point electric control with switching solenoid (sizes 28 to 200) or control valve (sizes 250 to 1000) allows the displacement to be set to either Vg min or Vg max by switching the electric current at the switching solenoid or control valveon or off. Note: The control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, anauxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressures, Please note thatNote- Maximum permissible pilot pressure: 100 bar- The control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, an auxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressuresPlease note that pressures up to 450 bar can occur at port G.- A leakage flow of maximum 0.3 L/min is present at port X (operating pressure > pilot pressure). To avoid a build-up of pilot pressure, pressure is to be relieved from port X to the reservoir.HA - Automatic control high-pressure relatedThe automatic high-pressure related control adjusts the displacement automatically depending on the operating pressure.The displacement of the A6VM motor with HA control is Vg min (maximum speed and minimum torque). The control unit measures internally the operating pressure at A or B (no control line required) and upon reaching the beginning of control, thecontroller swivels the motor from Vg min to Vg max with increase of pressure. The displacement is modulated between Vg min and Vg max, thereby depending on load conditions. - Beginning of control at Vg min (minimum torque, maximumspeed) - End of control at Vg max (maximum torque, minimum speed)Note:- For safety reasons, winch drives are not permissible with beginning of control at Vg min (standard for HA).- The control oil is internally taken out of the high-pressure side of the motor (A or B). For reliable control, an operating pressure of at least 30 bar is required in A (B). If a control operation is performed at an operating pressure < 30 bar, an auxiliary pressure of at least 30 bar must be applied at port G via an external check valve. For lower pressures, please contact us.Please note that pressures up to 450 bar can occur at port G.- The beginning of control and the HA characteristic are influenced by the case pressure. An increase in case pressure causes an increase in the beginning of control and thus a parallel shift of the characteristic. Only for HA1T (sizes 28 to 200) and HA1, HA2, HA.T, (sizes 250 to 1000).- A leakage flow of maximum 0.3 L/min is present at port X (operating pressure > pilot pressure). To avoid a build-up of pilot pressure, pressure is to be relieved from port X to the reservoir. Only for control HA.T.
Jinan Focor Machinery Co., Ltd is located in the beautiful Spring City "Jinan" of Shandong Province, Focor is a mining machinery supplier integrated with manufacturing, OEM, trading and technical service for underground mining machinery and spare parts domestic and overseas.
Our business mainly consists of underground mining equipments and spare parts, including Underground Loader (LHD), Underground Dump Truck and Drilling jumbo. We supply the best models with the most updated configuration according to customers' requirement, for example we can choose Deutz engine with different power and types for the best performance, we also try our best to customize the equipment size for different mine roadways. Our advantage is manufacturing small diesel loaders, trucks and jumbos, including 0.6-3 m3 loaders, 8-20 tons truck and drilling jumbos combined. The core parts are all international top brands, and we can supply competitive price and delivery time.
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