Rexroth Hydraulic Pump A2fe250/355 Used for Machinery

Model NO.
A2FE250/355
Type
Plunger Type
Original
China
Application
Construction Machinery
Model
A2fe250/355
Transport Package
Wooden Case for Export
Specification
piston
Trademark
FOCOR
Origin
China
HS Code
84122910
Production Capacity
2000 Sets/Month
Reference Price
$ 180.00 - 1,080.00
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Product Description

Rexroth hydraulic pump A2FE250/355 Used for machinery


A2FE180 hydraulic motor new brand made in Germany
 
Hydraulic fixed motor A2FE28, A2FE32, A2FE45, A2FE56, A2FE63, A2FE80, A2FE90, A2FE107, A2FE125, A2FE160, A2FE180,
A2FE250, A2FE355
Description  
Open and closed circuits
Series 61 and 60
Pressure:
Size 28 to180 Nominal pressure 5800 psi (400 bar)/ Peak pressure 6500 psi (450 bar)
Size 250 to 355 Nominal pressure 5100 psi (350 bar)/ Peak pressure 5800 psi (400 bar)
 
The A2FE fixed plug-in motor with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in open and closed circuits
-Far-reaching integration in mechanical gearbox due to recessed mounting flange located in the center of the case (extremely space-saving construction)
-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 the low-pressure side.
-Small dimensions.
-High total efficiency.
-Complete unit, ready-assembled and tested.
-Easy to install, simply plug into the mechanical gearbox.
-No configuration specifications to be observed when installing.
 
Technical Data 
Table of values (theoretical values, without efficiency and tolerances; values rounded)
Rexroth A2FE motor A2FE28 A2FE32 A2FE45 A2FE56 A2FE63 A2FE80  
Displacement Vg cm3 28.1 32 45.6 56.1 63 80.4  
Speed maximum nnom rpm 6300 6300 5600 5000 5000 4500  
nmax2) rpm 6900 6900 6200 5500 5500 5000  
Input flow Vg qV L/min 177 202 255 281 315 362  
Torque at Vg and Dp = 350 bar T Nm 157 178 254 313 351  
Dp = 400 bar T Nm 179 204 290 357 401  
Rotary stiffness c kNm/ rad 2.93 3.12 4.18 5.94 6.25 8.73  
Moment of inertia JGR  kgm2 0.0012 0.0012 0.0024 0.0042 0.0042 0.0072  
Maximum angular a rad/s2 6500 6500 14600 7500 7500 6000  
Case volume V  L 0.2 0.2 0.33 0.45 0.45 0.55  
Mass (approx.) m kg 10.5 10.5 15 18 19 23  
Size A2FE90 A2FE107 A2FE125 A2FE160 A2FE180 A2FE250 A2FE355
Displacement Vg cm3 90 106.7 125 160.4 180 250 355
Speed maximum nnom rpm 4500 4000 4000 3600 3600 2700 2240
nmax2) rpm 5000 4400 4400 4000 4000 - -
Input flow qV L/min 405 427 500 577 648 675 795
Torque at Vg Dp = 350 bar T 501 594 696 893 1003 1393 1978
Dp = 400 bar T 573 679 796 1021 1146 - -
Rotary stiffness c kNm/rad 9.14 11.2 11.9 17.4 18.2 73.1 96.1
Moment of inertia JGR kgm2 0.0072 0.0116 0.0116 0.022 0.022 0.061 0.102
Maximum angular a rad/s2 6000 4500 4500 3500 3500 10000 8300
Case volume V L 0.55 0.8 0.8 1.1 1.1 2.5 3.5
Mass (approx.) m kg 25 34 36 47 48 82 110
Hydraulic fluid
Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and 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 plug-in motor A2FE 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 fluid
The 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 (νopt), see shaded area of the selection diagram. 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 operating viscosity range (νopt., shaded area) 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 below is to be taken into account when determining the viscosity in the bearing. If the above conditions cannot be maintained due to extreme operating parameters, we recommend the use of a flushing and boost pressure valve.
Shaft seal
Permissible pressure loading the 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.

Rexroth Hydraulic Pump A2fe250/355 Used for Machinery
Rexroth Hydraulic Pump A2fe250/355 Used for Machinery
Rexroth Hydraulic Pump A2fe250/355 Used for Machinery
Rexroth Hydraulic Pump A2fe250/355 Used for Machinery

Rexroth Hydraulic Pump A2fe250/355 Used for Machinery
Rexroth Hydraulic Pump A2fe250/355 Used for Machinery






 

 

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SUPERAUTO.CAT, 2023