Rexroth Type A2FO & A2FM Fixed Bent Axis Piston Pump & Motor A2FO56/61R-PBB05
How to order:
Normal Size:10,12,16, 23, 28, 32, 45, 56, 63,80, 90, 107, 125, 160, 180
Series: 6
Sample: A2FO56/61R-PBB05 (Piston Pump)
A2FM56/61R-PBB05 (Piston Motor)
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Fixed displacement pumps & motors
• Nominal pressure: Nominal size5: 315 bar
Nominal sizes 10 to 200: 400 bar
Nominal sizes 250 to 1000: 350 bar
• Peak pressure:
Nominal size5: 350 bar
Nominal sizes 10 to 200: 450 bar
Nominal sizes 250 to 1000: 400 bar
• Series 6
• Open circuit
• Robust and short taper roller bearings
• Standard fixed displacement pump for all applications in open circuit
• Service ports SAE or threaded
• Cylindrical shaft end with splined shaft or keyed shaft
• Interchangeable with original Rexroth pump and motor of the same model
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The fixed displacement pump A2F of axial piston, bent axis
design is made suitable for hydrostatic drives in open circuits.
Output flow is proportional to drive speed and displacement. These pumps are suitable for use in mobile or industrial applications. The drive shaft bearings are designed to give the service life expected in these areas of operation.
Careful selection of the displacements offered, permit sizes to be matched to practically every application.
– Favourable power / weight ratio
– Compact and economic design
– Optimum efficiency
– One piece pistons with piston rings
– Patented cylinder block drive system
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Nominal size 5 10 12 16 23 28
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Displacement Vg cm3 4.93 10.3 12 16 22.9 28.1
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Speed 1) nmax min–1 5600 3150 3150 3150 2500 2500
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Flow at nmax qV max L/min 27 32 37 49 56 69
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Power p = 400 bar Pmax kW 9.6 2) 22 25 34 38 47
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Torque p = 400 bar Tmax Nm 24.7 2) 65 76 100 144 178
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Weight (approx.) m kg 2.5 5.4 5.4 5.4 9.5 9.5
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Nominal size 32 45 56 63 80 90
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Displacement Vg cm3 32 45.6 56.1 63 80.4 90
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Speed 1) n min–1 2500 2240 2000 2000 1800 1800
max
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Flow at nmax qV max L/min 78 100 110 123 141 158
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Power p = 400 bar Pmax kW 53 68 75 84 96 108
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Torque p = 400 bar Tmax Nm 203 290 356 400 511 572
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Weight (approx.) m kg 9.5 13.5 18 18 23 23
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Nominal size 107 125 160 180 200
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Displacement Vg cm3 106.7 125 160.4 180 200
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Speed 1) nmax min–1 1600 1600 1450 1450 1550
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Flow at nmax qV max L/min 167 196 228 255 304
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Power p = 400 bar Pmax kW 114 133 155 174 203
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Torque p = 400 bar Tmax Nm 678 795 1020 1145 1272
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Weight (approx.) kg 32 32 45 45 66
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A2FO series axial piston pump (motor) working principle and structure
The main part is driven by the drive shaft to rotate the cylinder body, so that seven plungers evenly distributed on the cylinder body rotate around the Central Line of the drive shaft, and press the sliding boots in the column sliding group body on the variable head (or inclined plate) through the central spring. In this way, the plunger reciprocates with the rotation of the cylinder to complete oil absorption and pressure. Instructions for use:
No. 1, it is recommended to use N46 anti-wear hydraulic oil, the work should pay attention to the oil temperature rise at any time, medium oil tank temperature shall not exceed 60 c, the most suitable for the oil temperature is 30 c ^ 55 c, when the oil temperature is less than or greater than 15 c 60 c should give heating or cooling.
2. The hydraulic oil should be replaced once every 1-6 months, and the oil tank should be cleaned to remove dirt and dust. For the new put into use of hydraulic equipment should be used for about a month to clean the tank to replace the new oil. The filter screen should be cleaned when cleaning the oil tank, and the filter element of the oil filter should be replaced and cleaned regularly. Oil filter truck is recommended for cost saving.
3, the external electrical control line is introduced by the electrical box, please pay special attention to motor steering should be consistent with the direction of the pump arrow mark, solenoid valve control voltage must be consistent with the electromagnet mark.
4. Start the oil pump and motor: check whether the regulating handwheel and handle in the system are normal before starting. Whether the position of electrical switch and travel rail is firm, etc., then it can start up without load first, and slowly pressurize the work after no load for 15 minutes. Under general circumstances, the working process should not frequently open and close the motor. When starting at low temperature, it is necessary to adjust the rated pressure of the overflow valve to 1/2, and then repeatedly start the motor to make the overflow valve overflow completely and warm the hydraulic oil until the temperature rises to about 20C before putting it into use. (those with heaters can be heated directly).
5. The equipment should work under the rated pressure, otherwise, it is easy to cause overheating, overload and damage to other components of the motor. * worry about oil!!
Pressure switch
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