Hydraulic Electro Proportional Control Variable Displacement Piston Motor A10FM

1.Torque increases with pressure gradient between high and low pressure sides

2.Suitable for walking machinery and industrial applications

3.Allows high output speeds

4.Mature A10 rotating component technology

5.Mechanical and hydraulic connections comply with SAE standards

6.Optional built-in anti-cavitation valve, that is, fan drive unit

Descripción detallada

This motor has a clear torque variation rule: its torque increases with the pressure gradient between the high and low pressure sides. The larger the pressure difference between the two sides, the greater the output torque, which ensures that the motor can provide sufficient power to drive heavy loads stably, even in high-pressure working scenarios, avoiding stalling or performance degradation. It is widely suitable for walking machinery and industrial applications, including construction machinery, agricultural equipment, and industrial hydraulic stations, adapting well to the harsh working environment of walking machinery and the stable operation requirements of industrial equipment. The motor allows high output speeds, enabling efficient power transmission and meeting the needs of high-speed operation scenarios, while maintaining stable performance without excessive vibration or noise. It adopts mature A10 rotating component technology, which has undergone long-term practical verification, featuring high reliability, low wear, and stable operation, effectively reducing failure rates and extending the motor’s service life. Its mechanical and hydraulic connections comply with SAE standards, ensuring good compatibility and interchangeability, facilitating installation, maintenance, and replacement with other standard components. Additionally, it is optionally equipped with a built-in anti-cavitation valve, which also serves as a fan drive unit, effectively preventing cavitation damage to the motor and ensuring the normal operation of the fan system, enhancing the overall reliability of the equipment.

Selección y solicitud de cotización

This motor series should be selected from the required torque, speed and duty cycle. Confirm displacement, working pressure, case-drain arrangement where applicable, mounting interface and fluid conditions before final selection.

Información que debe incluir en su RFQ

  • Required torque and speed at working pressure
  • Preferred displacement or calculated displacement
  • Mounting flange, shaft and port orientation
  • Duty cycle, fluid, temperature and operating environment

Recursos relacionados

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Ordering code for standard program

A10F M / 52 V C
01 02 03 04 05 06 07 08 09 10 11

Unidad de pistones axiales

01 Swashplate design, fixed displacement, nominal pressure 280 bar, maximum pressure 350 bar A10F

Modo de operación

02 Motor, open and closed circuit M

Tamaño (NG)

03 Theoretical displacement 018 023 028 037 045 058 063

Series

04 Series 5, Index 2 52

Sentido de giro

05 Visto en el árbol de transmisión en el sentido de las agujas del reloj R1)
counter clockwise L1)
bidirectional W

Focas

06 FKM (Fluoro-rubber) V

Árbol de transmisión

018 023 028 037 045 058 063
07 Splined shaft to ISO 3019-1 (SAE J744) R
Splined shaft to ISO 3019-1 (SAE J744) W
Tapered with woodruff key and threaded end C

Brida de montaje

018 023 028 037 045 058 063
08 SAE 2-hole C

Ports for service lines

018 023 028 037 045 058 063
09 SAE-flange ports A and B on side, same side Mounting bolts metric 10N00
Threaded ports A and B,metric, on side, same side 16N00

Ventile

018 023 028 037 045 058 063
10 Without valves 0
With integrated flushing valve 7
With integrated anti cavitation valve 2

Speed sensor

018 023 028 037 045 058 063
11 Without speed sensor
Prepared for speed sensor (for inductive speed sensor ID) D

•=available              ○=on request         — =not available

1)Only necessary in conjunction with valve configuration "2" (integrated anti cavitation valve)

A10F E / 52 V
01 02 03 04 05 06 07 08 09 10 11

Unidad de pistones axiales

01 Swashplate design, fixed displacement, nominal pressure 280 bar, maximum pressure 350 bar A10F

Modo de operación

02 Motor, open and closed circuit E

Tamaño (NG)

03 Theoretical displacement 010 011 014 016 018 023 028 037 045 058 063

Series

04 Series 5, Index 2 52

Sentido de giro

05 Visto en el árbol de transmisión en el sentido de las agujas del reloj R1)
counter clockwise L1)
bidirectional W

Focas

06 FKM (Fluoro-rubber) V

Árbol de transmisión

010 011 014 016 018 023 028 037 045 058 063
07 Splined shaft to ISO 3019-1 (SAE J744) R
Splined shaft to ISO 3019-1 (SAE J744) W
Tapered with woodruff key and threaded end C

Brida de montaje

010 011 014 016 018 023 028 037 045 058 063
08 SAE 2-hole C2)
Special 2-hole F
Special 8-hole H

Ports for service lines

010 011 014 016 018 023 028 037 045 058 063
09 SAE-flange ports A and B, on side, same side mounting bolts metric 10N00
Threaded ports A and B,metric, on side, same side 16N00

Ventile

010 011 014 016 018 023 028 037 045 058 063
10 Without valves 0
With integrated flushing valve 7
With integrated anti cavitation valve 2

Speed sensor

010 011 014 016 018 023 028 037 045 058 063
11 Without speed sensor
Prepared for speed sensor (for inductive speed sensor ID) D

•=available              ○=on request         — =not available

1)Only necessary in conjunction with valve configuration "2" (integrated anti cavitation valve)

2)R-shaft with C-flange on sizes 10 to 18 in preparation

Datos técnicos

Fluids

Prior to project design, please see our technical data sheets RE 90220 (mineral oil) and RE 90221 (environmentally acceptable fluids) for detailed information on fluids and operating conditions.

For operation on environmentally acceptable fluids please consult us (when ordering, please state in clear text the fluid to be used).

Operating viscosity range

To achieve optimum values for efficiency and service life we recommend an operation viscosity (at operating temperature)within the range,

νelegir = opt. operating viscosity 16...36 mm2/s

referred to the tank temperature (open circuit).

Limit of viscosity range

For critical operation conditions the following values apply:

νmin=5 mm2/s (closed circuit)

10 mm2/s (open circuit)

for short periods (t ≤ 1 min)

at a max. perm. temperature of 115 ℃.

Please note that the max. leakage fluid temperature of 115 ℃ is also not exceeded in certain areas (for instance bearing area).The fluid temperature in the bearing area is approx.5 K higher than the average leakage fluid temperature

νmáx=1600 mm2/s
for short periods (t≤1 min)
on cold start
(tmin =p≤ 30 bar, n ≤ 1000 min-1,-25 °C).

At temperatures between -40℃ and -25℃ special measures are required, please consult us for further information.For detailed information on operation with low temperatures see data sheet RE 90300-03-B.

Selection diagram

Notes on the selection of the hydraulic fluid

In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature.

The fluid should be selected so that within the operating temperature range, the viscosity lies within the optimum range (νelegir),see shaded section of the selection diagram. We recommend to select the higher viscosity grade in each case.

Example: at an ambient temperature of X℃ the operating temperature in the tank is 60℃. In the optimum viscosity range(νelegir; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; VG 68 should be selected.

Important:

The leakage oil (case drain oil) temperature is influenced by pressure and input speed and is always higher than the tank temperature. However, at no point of the component may the temperature exceed  115℃.

If it is not possible to comply with the above conditions because of extreme operating parameters please consult us.

Filtration of the hydraulic fluid

 Filtration improves the cleanliness level of the hydraulic fluid,which, in turn, increases the service life of the axial piston unit.

To ensure the functional reliability of the axial piston unit, a gravimetric evaluation is necessary for the hydraulic fluid to determine the amount of contamination by solid matter and to determine the cleanliness level according to ISO 4406.A cleanliness level of at least 20/18/15 to ISO 4406 is to be  maintained.

If above requirements cannot be maintained please consult us.

Operating pressure range

Pressure at service line port (pressure port) A or B

Presión nominal PNombre 280 bar absolute
Maximum pressure Pmáx 350 bar absolute
Single operating period 2,5 ms
Total operating period 300 h
Minimum pressure (high pressure side) 10 bar2)
Rate of pressure change RA max 16000 bar/s

Presión de salida

at nmáx
Minimum pressure at low pressure side Pabs max 18 bar

Presión de drenaje de la caja

 Maximum permissible case drain pressure

(at port L, L1):

Pmax abs motor operation in open circuit 4 bar abdominales
Pmax abs motor operation in closed circuit 4 bar abdominales
Pmax abs pump/motor operation in open circuit 2 bar abdominales

Direction of flow

viewed on drive shaft
clockwise rotation counter clockwise rotation
A to B B to A

Definitions

 Presión nominal PNombre

The nominal pressure corresponds to the maximum design

pressure.

Maximum pressure Pmáx

The maximum pressure corresponds to the maximum operating pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.

Minimum pressure (high-pressure side)

Minimum pressure at the high pressure side (A or B) which is required in order to prevent damage to the axial piston unit.

Rate of pressure change RA

Maximum permissible rate of pressure rise and pressure reduction during a pressure change, over the entire pressure range.

Total operating period =t1 + t2 +... + tn

 1)Other values on request

2)Lower pressures time dependent, please consult us.

Table of values (theoretical values, without efficiency and tolerances: value rounded)

Tamaño NG 010 011 014 016 018 023
Desplazamiento VG máximo cm3 10.6 11.5 14.1 16.1 18 23.5
Speed1) 5000 4200 4200 4200 4200 4900
at VG máximo nNombre rpm
Input flow 53 48 59 68 76 115
at nNombre qv max L/min
Poder 24.7 22.5 27.6 31.6 35.3 53.6
at nNombre, Δp= 280 bar P máx kW
Actual starting torque 37.5 30 45 53 67.5 75
at n= 0 rpm, Δp = 280 bar Nm
Par de torsión 47 51 63 72 80 105
at VG máximo Δp = 280 bar Tmáx Nm
Torsional stiffness R c Nm/rad 14835 28478
Árbol de transmisión W c Nm/rad
C c Nm/rad 15084 18662 18662 18662 18662 30017
Moment of inertia rotary group JTW kgm2 0.0006 0.00093 0.00093 0.00093 0.00093 0.0017
Aceleración angular máxima α rad/s2 8000 6800 6800 6800 6800 5500
Volumen de casos V L 0.1 0.15 0.15 0.15 0.15 0.6
Weight approx. m kg 5 6.5 6.5 6.5 6.5 12
Tamaño NG 028 037 045 058 063
Desplazamiento VG máximo cm3 28.5 11.5 14.1 16.1 18
Speed1)
at VG máximo nNombre rpm 4700 4200 4000 3600 3400
Input flow 134 154 178 209 215
at nNombre qv max L/min
Poder 62.5 71.8 83.1 97.4 100.1
at nNombre, Δp= 280 bar P máx kW
Actual starting torque 105 125 170 205 230
at n= 0 min-1, Δp = 280 bar Nm
Par de torsión 127 163 198 258 281
at VG máximo Δp = 280 bar Tmáx Nm
Torsional stiffness R c Nm/rad 28478 46859 46859 80590 80590
Árbol de transmisión W c Nm/rad 38489 38489 60907 60907
C c Nm/rad 30017 46546 46546 87667 87667
Moment of inertia rotary group JTW kgm2 0.0017 0.0033 0.0033 0.0056 0.0056
Aceleración angular máxima α rad/s2 5500 4000 4000 3300 3300
Volumen de casos V L 0.6 0.7 0.7 0.8 0.8
Weight approx. m kg 12 17 17 22 22

1)for maximum speed an outlet pressure (in low pressure side) of 18 bar is required

Note

Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit We recommend testing the loads by means of experiment or calculation/ simulation and comparison with the permissible values.

Permissible motor speed in relation to outlet pressure

Determination of motor size (NG)

Input flow qv=(Vg∙n)/(1000∙ηv) [L/min] Vg=Displacement per revolution in cm3
Δp=Differential pressure in bar
n=speed in rpm
ηv=Volumetric efficiency
ηMh=Mechanical-hydraulic efficiency
ηt=Overall efficiency (ηt = ηv ∙ηMh)
TK=Torque constant
Par de torsión T=(1,59∙Vg∙ Δp∙ηMh)/100 [Nm]
or T=Tk∙ Δp∙ηMh
Poder P=(2π∙T∙n)/60000=(qv∙Δp∙ηt)/600 [kW]
Output speed n=(qv∙1000∙ηv)/Vg [rpm]

Permissible radial and axial forces on the drive shaft

Max. radial force at X/2 Drive shaft R; W Drive shaft C Fq max N 250 350 350 350 350 1200
Maximum axial force ± Fax max N 400 700 700 700 700 1000
Tamaño NG 28 37 45 58 63
Max. radial force at X/2 Drive shaft R; W Drive shaft C Fq max N 1200 1500 1500 1700 1700
Maximum axial force ± Fax max N 1000 1500 1500 2000 2000

A10FM 58