Home / Products / Hydraulic motors

Axial piston motor

AE 3 - AE 45

Our radial piston motors of the "KM" series prove themselves daily in countless applications and have done so for many decades. They are constantly being further developed and optimized for new applications. Particularly noteworthy is the long service life and compact design of the motors.

This means that the motors can also be used in applications with limited installation space and demanding external influences. On the other hand, they exhibit very uniform concentricity, even at low speeds. Which is why they are particularly well suited as low-speed motors and for control applications.

Performance features

  • Particularly long service life

  • Compact design

  • Uniform concentricity even at very low speeds

  • High absorption of radial and axial loads.

  • Wide speed range

  • High power density

  • Extremely low mass moment of inertia

Technical data

  • Schluckvolumen [cm³/U]

    tbd

  • Leistung [kW]

    bis tbd

  • Drehzahl [1/min]

    3-5250

  • Drehmoment [Nm]

    bis 161

Motor specifications

Hydraulic motors KM 11 - RM 11

In radial piston engines, seven radially arranged pistons act on the crankshaft via a heptagonal ring with needle cage. In the KM 11 engine type, control is by means of translational movement of the control ring and gap seal to the housing. The RM 11 radial piston engine, on the other hand, has a backlash-adjusting control system. This makes the motor less sensitive to the effects of pressure and temperature and reduces leakage.

Vg = 11,1 cm³/rev

 

KM 11

RM 11

Geometr. Displacement

[cm³/rev]

11 13

11 13

Theoretic specific torque

[Nm/bar]

0.18

0.18

Inlet pressure, max.

[bar]

210.00

250,00

Max, torque

[Nm]

31,60

37,70

Operating speed range

[rpm]

10-3000

5-3600

Intermittent power

[kw]

4,30

6.00

KM 11 - RM 11

KM 11 – KM 110 Catalog

Hydraulic motors KM 22 – KM 32

Radial piston motors with polygon rings and gap seal in the control system

Vg = 22,0 cm³/rev – 33,0 cm³/rev

 

KM 22

KM 32

Geometr. Displacement

[cm³/rev]

11 13

11 13

Theoretic specific torque

[Nm/bar]

0.18

0.18

Inlet pressure, max.

[bar]

210.00

250,00

Max, torque

[Nm]

31,60

37,70

Operating speed range

[rpm]

10-3000

5-3600

Intermittent power

[kw]

4,30

6.00

KM 22 – KM 32

KM 11 – KM 110 Catalog

Hydraulic motors KM 45 – KM 63

Radial piston motors with polygon rings and gap seal in the control system

Vg = 44,0 cm³/rev – 66,0 cm³/rev

 

KM 45

KM 63

Geometr. Displacement

[cm³/rev]

11 13

11 13

Theoretic specific torque

[Nm/bar]

0.18

0.18

Inlet pressure, max.

[bar]

210.00

250,00

Max, torque

[Nm]

31,60

37,70

Operating speed range

[rpm]

10-3000

5-3600

Intermittent power

[kw]

4,30

6.00

KM 45 – KM 63

KM 11 – KM 110 Catalog

Hydraulic motors KM 90 - KM 110

Radial piston motors with polygon rings and gap seal in the control system

Vg = 88,4 cm³/rev - 109,5 cm³/rev

 

KM 45

KM 63

Geometr. Displacement

[cm³/rev]

11 13

11 13

Theoretic specific torque

[Nm/bar]

0.18

0.18

Inlet pressure, max.

[bar]

210.00

250,00

Max, torque

[Nm]

31,60

37,70

Operating speed range

[rpm]

10-3000

5-3600

Intermittent power

[kw]

4,30

6.00

KM 90 - KM 110

KM 11 – KM 110 Catalog

Hydraulic motors KM 90 - KM 110

In radial piston engines, seven radially arranged pistons act on the crankshaft via a heptagonal ring with needle cage. In the KM 11 engine type, control is by means of translational movement of the control ring and gap seal to the housing. The RM 11 radial piston engine, on the other hand, has a backlash-adjusting control system. This makes the motor less sensitive to the effects of pressure and temperature and reduces leakage.

Vg = 11,1 cm³/rev

 

KM 11

RM 11

Geometr. Displacement

[cm³/rev]

11 13

11 13

Theoretic specific torque

[Nm/bar]

0.18

0.18

Inlet pressure, max.

[bar]

210.00

250,00

Max, torque

[Nm]

31,60

37,70

Operating speed range

[rpm]

10-3000

5-3600

Intermittent power

[kw]

4,30

6.00

KM 90 - KM 110

KM 11 – KM 110 Catalog

Individual designs of valve assemblies

Versions e.g. with lowering brake valves or complete valve control systems including proportional or servo valves are also available.

For such applications, however, please consult our technical office.

To the contact form

Individual designs of valve assemblies

Versions e.g. with lowering brake valves or complete valve control systems including proportional or servo valves are also available.

For such applications, however, please consult our technical office.

To the contact form

Application areas of valve assemblies

Wagon puller in mining

Our hydraulic motors are used in mining. Underground, rail-bound trolleys are pushed or pulled into or out of freight elevators by hydraulically driven trolley pullers.

With hydraulic motors of the RMX series, Düsterloh Fluidtechnik manufactures particularly robust motors that ensure reliable movement of the trolleys. Precise control of the motors is guaranteed by mounting the valve assemblies directly on our motors.

Home Company News Products Service

Guangzhou Dusterloh Machinery Co., Ltd

Tel: +86 20 85826654

Fax: +86 20 85826654

E-mail: tony.ling@gzduesterloh.cn

Add: Room No.B312, 3 Hankee Avenue Dalong Street Panyu District Guangzhou City China

Search · Contact · Imprint · Data privacy
Copyright © 2025 Düsterloh Fluidtechnik GmbH