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Variable Displacement Piston Motor A10VM
Variable Displacement Piston Motor A10VM
Variable Displacement Piston Motor A10VM
Variable Displacement Piston Motor A10VM
Variable Displacement Piston Motor A10VM
Variable Displacement Piston Motor A10VM
  1. Variable Displacement Piston Motor A10VM
  2. Variable Displacement Piston Motor A10VM
  3. Variable Displacement Piston Motor A10VM
  4. Variable Displacement Piston Motor A10VM
  5. Variable Displacement Piston Motor A10VM
  6. Variable Displacement Piston Motor A10VM

Variable Displacement Piston Motor A10VM

1.Output speed is proportional to input flow rate and inversely proportional to motor displacement

2.Output torque increases proportionally with pressure differential across high/low

3.pressure sides and increased displacement

4.Heavy-duty bearings ensure extended service life

5.Reliable A10 drive technology

6.A10VM features SAE 2-pin mounting flange

Detailed description

The A10VM motor features a clear operational relationship: its output speed is proportional to the input flow rate and inversely proportional to the motor displacement. This means that as the input flow increases, the output speed rises accordingly, while a larger displacement leads to a lower speed, allowing for flexible adjustment to match diverse working condition requirements. Its output torque is closely related to pressure and displacement, increasing proportionally with the pressure differential between the high and low pressure sides, as well as with increased displacement, ensuring strong power output to drive heavy loads stably. Equipped with heavy-duty bearings, the motor is designed to withstand high loads and frequent operation, effectively reducing wear and tear during long-term use, thus ensuring an extended service life and reducing maintenance frequency and costs. It adopts reliable A10 drive technology, which has been verified by practical applications to deliver stable performance, strong anti-interference ability, and ensure smooth and reliable operation of the motor even in complex working environments. Additionally, the A10VM is equipped with an SAE 2-pin mounting flange, which conforms to international standards, facilitating easy installation and compatibility with various hydraulic systems, enhancing its versatility and applicability in different scenarios.

Ordering code for standard program

A10V M / 52 W – V C
01 02 03 04 05 06 07 08 09 10 11 12 13 14

Axial piston unit

01 Swash plate design, variable, nominal pressure 280 bar, maximum pressure 350 bar A10V

Operating Mode

02 Motor, open and closed circuit M

Size (NG)

03 Displacement Vg max in cm3 028 045 063 085

Control devices

028 045 063 085
04 Two
point
control		 Directly operated, external control supply, without pilot valve ● ● ● ● DG
Hydraulically operated Stroking time without ● ● ● ○ HZ
Electricaly with solenoid valve orifice with ● ● ● ○ HZ6
Electricaly with solenoid valve Stroking time without ● ● ● ● EZ1
control voltage 12V orifice with ● ● ● ● EZ6
Electricaly with solenoid valve Stroking time without ● ● ● ○ EZ2
control voltage 24V orifice with ● ● ● ○ EZ7

Series

05 Series 5, Index 2 52

Direction of rotation

06 Viewed on shaft end          Bi-directional W

Minimum displacement

028 045 063 085
07 Vg min (in cm3) steplessly adjustable from/to 8/28 12/25 16/38 22/50 1
Adjustment state in clear text from/to – 26/45 40/62 48/85 2

Seals

08 FKM (flour-rubber) V

Drive shaft

028 045 063 085
09 Splined shaft, ANSI B92.1 a-1976, for higher drive torque ● ● ● ● R
Splined shaft, ANSI B92.1 a-1976, for reduced drive torque – ● ● ● W

Mounting flange

10 SAE J744 2-bolt C

Ports for service lines

11 SAE flanges, at side-same side, metric fixing screws ● ● ● ● 10N00
SAE flanges at rear, metric fixing screws ○ ● ○ ○ 11N00
Threaded ports on side, same side, metric thread ● ● ● ○ 16N00

Valves

12 Without valves ● ● ● ● 0
Integrated flushing valve, only with side ports (10N00 and 16N00) ● ● ● ● 7

Speed pickup

13 Without speed pickup ● ● ● ● –
Prepared for inductive type of speed pickup ID R ● ● ● ○ D

Connector for solenoids

14 HIRSCHMANN - connector — without suppressor diod ▲ ▲ ▲ ▲ H
DEUTSCH - connector, molded, 2-pin —without suppressor diod ● ● ● ● P

•=available          ○=in preparation         — =not available       ▲=not for new projects

A10V E / 52 W – V F
01 02 03 04 05 06 07 08 09 10 11 12 13 14

Axial piston unit

01 Swash plate design, variable, nominal pressure 280 bar, maximum pressure 350 bar A10v

Operating mode

02 Motor, plug in type, open and closed circuit E

Size (NG)

03 Displacement Vg max in cm3 028 045 063

Control devices

028 045 063
04 Two
point
control		 Directly operated, external control supply, without pilot valve ● ● ○ DG
Hydraulically Stroking time without ● ● ● HZ
orifice with ● ● ● HZ6
Electricaly with solenoid valve Stroking time without ● ● ● EZ1
control voltage 12V orifice with ● ● ● EZ6
Electricaly with solenoid valve Stroking time without ● ● ● EZ2
control voltage 24V orifice with ● ● ● EZ7

Series

05 Series 5, Index 2 52

Direction of rotation

06 Viewed on shaft end                                  Bi-directional W

Minimum displacement

028 045 063
07 Vg min (in cm3) stepples adjustable from/to 10/28 12/25 16/38 1
Adjustment please state in clear text from/to – 26/45 40/62 2

Seals

08 FKM (flour-rubber) V

Drive shaft

028 045 063
09 Splined shaft, ANSI B92.1 a-1976, for higher drive torque ● ● ● R
Splined shaft, ANSI B92.1 a-1976, for reduced drive torque – ● ● W

Mounting flange

10 Special 2-bolt F

Ports for service line

11 SAE flanges at side-same side, metric fixing screws ● ● ● 10N00
SAE flanges at rear, metric fixing screws ○ ● ○ 11N00
Threaded ports on side, same side, metric thread ● ● ● 16N00

Valves

12 Without valves ● ● ● 0
Integrated flushing valve, only with side ports (10N00 and 16N00) ● ● ● 7

Speed pickup

13 Without speed pickup ● ● ● –
Prepared for inductive type of speed pickup ID R ○ ● ○ D

Connector for solenoids

14 HIRSCHMANN - connector—without suppressor diod ▲ ▲ ▲ H
DEUTSCH - connector, molded, 2-pin—without suppressor diod ● ● ● P

•=available       ○=in preparation       — =not available       ▲=not for new projects

Technical data

Fluid

Prior to project design please see our data sheets RE 90220(mineral oil), RE 90221 (ecologically acceptable fluids) and RE90223(HF-fluids) for detailed information on fluids and application conditions.

When operating on ecologically acceptable fluids, limitations to the technical data may be necessary.

Please contact us and state the fluid used in clear text when ordering.

Operating viscosity range

For optimum efficiency and service life we recommend an ope-rating viscosity (at operating temperature) in the range

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

referred to circuit temperature in closed circuits or tank temperature in open circuits.

The following limits are valid for extreme operating conditions:

Vmin=5 mm2/s (closed circuit)

Vmin=10 mm2/s (open circuit)

briefly (t≤ 1 min) at max. permissible temperature of 115℃.

Please note, that the max. fluid temperature of 115℃ may also not be exceeded in certain areas (for instance bearing area)

The temperature in the bearing area is approx. 5 K higher than the average fluid temperature.

νmax=1600 mm2/s

briefly (t≤ 1 min)

on cold start (tmin = -25℃, p≤30 bar, n≤1000 rpm).

At temperatures between -25 ℃ and -40 ℃ special measures may be required for certain installation positions. Please consult us for further information

For detailed information on operation at very low temperatures see RE 90300-03-B.

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), circuit temperature (closed circuits), 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(νopt), 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(νopt; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; select VG 68.

Important: The leakage fluid (case drain fluid) temperature is influenced by pressure and motor speed and is always higher than the tank temperature. However, at no point in the circuit may the temperature exceed 115 ℃.

If it is not possible to comply with the above conditions because of extreme operating parameters or high ambient temperatures please consult us

Filtration of fluid

 The finer the filtration the better the achieved cleanliness of the fluid and the longer the life of the axial piston unit.

To ensure a reliable functioning of the axial piston unit, a minimum cleanliness of

20/18/15 to ISO 4406 is necessary.

At very high fluid temperatures (90℃ to max. 115℃) the minimum cleanliness has to be at least

19/17/14 to ISO 4406.

If above cleanliness classes cannot be met please consult us.

Operating pressure range

Pressure at port A or B

(Pressure data to DIN 24312)

Nominal pressure pN 280 bar 1)
Maximum pressure Pmax 350 bar
With motors connected in series please consult us.

Case drain pressure

Max. permissible pressure at leakage port L
Pabs max operation as a motor in open circuit 4 bar abs
Pabs max operation as a motor in closed circuit 4 bar abs
Pabs max motor/pump operation in open circuit 2 bar abs

Direction of rotation

Direction of rotation, viewed on shaft end
clockwise counter-clockwise
B to A A to B

Adjustment of displacement

The minimum displacement is steplessly adjustable within the range of the screw lengths

1 or 2 (see ordering code).

Please state minimum displacement in clear text when ordering.

Selection diagram

Table of values(theoretical values, without efficiency levels and tolerances; values rounded)

Size 28 45 63 85
Displacement Vg max cm3 28 45 62 87
Vg min cm3 8 (VM)/10(VE) 12 16 22
Speed1) 4700 4000 3300 3100
max. at Vg max n0 max min-1
max. at Vg min n0 max zul min-1 5400 4600 3900 3560
Min.speed in cont. operation n0 min min-1 250 250 250 250
Inlet flow 131,6 180 205 270
bei n0 max and Vg max qv0 max L/min
Torque constant2) at Vg max TK Nm/bar 0,445 0,716 1,002 1,35
Torque 125 200 276 387
at Vg max PN= 280 bar Tmax Nm
Actual starting torque 92 149 205 253
at n=0 min-1 PN = 280 bar T Nm ca.
Rotary stiffness Shaft R c Nm/rad 26000 41000 69400 152900
Shaft W c Nm/rad 19800 34400 54000 117900
Mass moment of inertia (about output shaft) J kgm2 0,0017 0,0033 0,0056 0,012
Filling volume V L 0,6 0,7 0,8 1,0
Weight approx. m kg 14 18 26 34

1) At maximal speed in closed circuit operation make sure that motor outlet pressure is at least≥18 bar.

2) In open circuit Δp 280bar at Pboostpress. 2bar

In closed circuit Δp 260bar at Pboostpress. 20bar

Minimum required outlet pressure (low pressure) at port A (B) 

depending on motor speed

Calculating size

Flow qv=(Vg∙n)/(1000∙ηv) [L/min] Vg=Displacement per rev. in cm3
Δp=Differential pressure in bar
n=speed in rpm
ηv=Volumetric efficiency
ηmh=Mechanical-hydraulic efficiency
ηt=Total efficiency (ηt = ηv ∙ηmh)
TK=Torque constant
Torque T=(1,59∙Vg∙ Δp∙ηmh)/100 [Nm]
or T=Tk∙ Δp∙ηmh
Output power P=(2π∙T∙n)/60000=(qv∙Δp∙ηt)/600 [kW]
Output speed n=(qv∙1000∙ηv)/Vg [min-1]

Permissible radial and axial forces on drive shaft

Size 28 45 63 85
Max. radial force at X/2 Fq max N 1200 1500 1700 2000
Max. axial force Fax N 1000 1500 2000 3000

A10VM完成