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 set 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 strain 5800 psi (400 bar)/ Peak pressure 6500 psi (450 bar)
Measurement 250 to 355 Nominal stress 5100 psi (350 bar)/ Peak stress 5800 psi (four hundred bar)
The A2FE set plug-in motor with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in open up and shut circuits
-Far-reaching integration in mechanical gearbox thanks to recessed mounting flange located in the heart of the circumstance (extremely area-preserving construction)
-The output speed is dependent on the circulation of the pump and the displacement of the motor.
-The output torque boosts with the force differential in between the large-strain and the reduced-force side.
-Modest proportions.
-Substantial total effectiveness.
-Complete device, prepared-assembled and analyzed.
-Effortless to install, basically plug into the mechanical gearbox.
-No configuration requirements to be observed when setting up.
CZPT Data 
Desk of values (theoretical values, CZPT performance and tolerances values rounded)

CZPT A2FE motor A2FE28 A2FE32 A2FE45 A2FE56 A2FE63 A2FE80  
Displacement Vg cm3 28.1 32 45.6 fifty six.1 sixty three eighty.four  
Velocity highest nnom rpm 6300 6300 5600 5000 5000 4500  
nmax2) rpm 6900 6900 6200 5500 5500 5000  
Input circulation 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 2.ninety three three.12 4.eighteen five.ninety four six.25 eight.seventy three  
Second of inertia JGR  kgm2 .0012 .0012 .0571 .0042 .0042 .0072  
Maximum angular a rad/s2 6500 6500 14600 7500 7500 6000  
Situation quantity V  L .2 .2 .33 .forty five .forty five .fifty five  
Mass (approx.) m kg 10.five ten.five fifteen eighteen 19 23  
Size A2FE90 A2FE107 A2FE125 A2FE160 A2FE180 A2FE250 A2FE355
Displacement Vg cm3 ninety 106.7 a hundred twenty five one hundred sixty.four 180 250 355
Speed greatest 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 1571 1146
Rotary stiffness c kNm/rad 9.14 11.2 eleven.nine seventeen.4 18.two seventy three.1 ninety six.1
Moment of inertia JGR kgm2 .0072 .0116 .0116 .571 .571 .061 .102
Highest angular a rad/s2 6000 4500 4500 3500 3500 10000 8300
Scenario quantity V L .fifty five .8 .8 two.5 3.five
Mass (approx.) m kg 25 34 36 forty seven forty eight 82 110

CZPT fluid
Just before starting undertaking plHangCZPT, you should refer to our data sheets RE 95710 (mineral oil), RE 95711 (environmentally suitable hydraulic fluids) and RE 95712 (HFD hydraulic fluids) and RE 95713 (HFA, HFB, HFC hydraulic fluids) for in depth data concerning the option of hydraulic fluid and software conditions. The plug-in motor A2FE is not suited for procedure with HFA hydraulic fluid. If HFB, HFC or HFD or environmentally appropriate hydraulic fluids are utilized, the limitations concerning complex info or other seals need to be noticed.
Particulars relating to the option of hydraulic fluid
The right choice of hydraulic fluid requires expertise of the running 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 functioning viscosity in the working temperature range is inside of the the best possible selection (νopt), see shaded location of the variety diagram. We suggested that the larger viscosity course be chosen in each and every case. Example: At an ambient temperature of X °C, an operating temperature of sixty °C is set in the circuit. In the the best possible running viscosity assortment (νopt., shaded location) this corresponds to the viscosity lessons VG 46 or VG 68 to be chosen: VG sixty eight.
Note: The scenario drain temperature, which is affected by force and velocity, can be greater than the circuit temperature or reservoir temperature. At no position of the ingredient may possibly the temperature be increased than a hundred and fifteen °C. The temperature difference specified below is to be taken into account when deciding the viscosity in the bearing. If the earlier mentioned circumstances can’t be maintained due to severe running parameters, we recommend the use of a flushing and boost pressure valve.
Shaft seal
Permissible force loading the provider existence of the shaft seal is motivated by the velocity of the axial piston device and the scenario drain force (case pressure). The suggest differential strain of 2 bar amongst the scenario and the ambient pressure might not be enduringly exceeded at standard working temperature. For a larger differential pressure at diminished velocity, see diagram. Momentary strain 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