Rexroth A2fe250 355 Hydraulic Axial Piston Variable Motor for Excavator

Rexroth A2fe250  355 Hydraulic Axial Piston Variable Motor for Excavator

CZPT A2fe250 /355 CZPT axial piston variable Motor   for Excavator

Brueninghaus Hydromatik CZPT A2FE motor
CZPT fixed motor A2FE28, A2FE32, A2FE45, A2FE56, A2FE63, A2FE80, A2FE90, A2FE107, A2FE125, A2FE160, A2FE180,
A2FE250, A2FE355


Open and shut circuits
Collection 61 and 60
Measurement 28 to180 Nominal stress 5800 psi (four hundred bar)/ Peak stress 6500 psi (450 bar)
Size 250 to 355 Nominal strain 5100 psi (350 bar)/ Peak strain 5800 psi (four hundred bar)
The A2FE fastened plug-in motor with axial tapered piston rotary team of bent-axis design, for hydrostatic drives in open up and shut circuits
-Much-achieving integration in mechanical gearbox because of to recessed mounting flange found in the centre of the scenario (very area-preserving design)
-The output velocity is dependent on the movement of the pump and the displacement of the motor.
-The output torque boosts with the strain differential in between the high-strain and the low-stress aspect.
-Little dimensions.
-Substantial total effectiveness.
-Complete device, ready-assembled and analyzed.
-Easy to put in, merely plug into the mechanical gearbox.
-No configuration technical specs to be observed when putting in.
Complex Data 
Table of values (theoretical values, with no performance and tolerances values rounded)

CZPT A2FE motor A2FE28 A2FE32 A2FE45 A2FE56 A2FE63 A2FE80  
Displacement Vg cm3 32 forty five.six 63 80.four  
Pace highest nnom rpm 6300 6300 5600 5000 5000 4500  
nmax2) rpm 6900 6900 6200 5500 5500 5000  
Input movement 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 = four hundred bar T Nm 179 204 290 357 401  
Rotary stiffness c kNm/ rad two.93 three.12 four.eighteen five.ninety four 6.25 8.seventy three  
Minute of inertia JGR  kgm2 .0012 .0012 .0571 .0042 .0042 .0072  
Optimum angular a rad/s2 6500 6500 14600 7500 7500 6000  
Circumstance quantity V  L .two .2 .33 .45 .forty five .fifty five  
Mass (approx.) m kg ten.five 10.5 fifteen eighteen 19 23  
Dimensions A2FE90 A2FE107 A2FE125 A2FE160 A2FE180 A2FE250 A2FE355
Displacement Vg cm3 90 106.7 one hundred twenty five 160.four a hundred and eighty 250 355
Pace highest nnom rpm 4500 4000 4000 3600 3600 2700 2240
nmax2) rpm 5000 4400 4400 4000 4000
Enter flow qV L/min 405 427 five hundred 577 648 675 795
Torque at Vg Dp = 350 bar T 501 594 696 893 1003 1393 1978
Dp = four hundred bar T 573 679 796 1571 1146
Rotary stiffness c kNm/rad 9.14 eleven.2 11.nine seventeen.4 eighteen.2 73.1 ninety
Moment of inertia JGR kgm2 .0072 .0116 .0116 .571 .571 .061 .102
Highest angular a rad/s2 6000 4500 4500 3500 3500 ten thousand 8300
Scenario quantity V L .fifty five .eight .eight 1.1 two.5 3.five
Mass (approx.) m kg 25 34 36 forty seven forty eight eighty two 110

CZPT fluid
Before beginning undertaking plHangCZPT, make sure you refer to our data sheets RE 95710 (mineral oil), RE 95711 (environmentally appropriate hydraulic fluids) and RE 95712 (HFD hydraulic fluids) and RE 95713 (HFA, HFB, HFC hydraulic fluids) for detailed info regarding the option of hydraulic fluid and application problems. The plug-in motor A2FE is not appropriate for operation with HFA hydraulic fluid. If HFB, HFC or HFD or environmentally appropriate hydraulic fluids are employed, the restrictions regarding technological information or other seals should be noticed.
Details with regards to the selection of hydraulic fluid
The right decision of hydraulic fluid needs understanding of the working temperature in relation to the ambient temperature: in a shut circuit, the circuit temperature, in an open up circuit, the reservoir temperature. The hydraulic fluid must be chosen so that the running viscosity in the working temperature assortment is within the optimum selection (νopt), see shaded location of the assortment diagram. We recommended that the larger viscosity course be selected in every single case. Instance: At an ambient temperature of X °C, an functioning temperature of 60 °C is established in the circuit. In the optimum working viscosity range (νopt., shaded location) this corresponds to the viscosity classes VG forty six or VG 68 to be selected: VG sixty eight.
Be aware: The case drain temperature, which is impacted by stress and pace, can be increased than the circuit temperature or reservoir temperature. At no point of the ingredient may possibly the temperature be increased than one hundred fifteen °C. The temperature distinction specified underneath is to be taken into account when deciding the viscosity in the bearing. If the previously mentioned problems can not be taken care of because of to extreme working parameters, we recommend the use of a flushing and increase force valve.
Shaft seal
Permissible pressure loading the support life of the shaft seal is influenced by the velocity of the axial piston device and the scenario drain stress (case stress). The imply differential strain of 2 bar amongst the case and the ambient stress could not be enduringly exceeded at regular working temperature. For a increased differential pressure at lowered 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 A2fe250  355 Hydraulic Axial Piston Variable Motor for Excavator