Valve assemblie

Valve assemblies for hydraulic motors

Valves are used to control and regulate hydraulic motors. In view of increasing automation, sophisticated valve control is becoming increasingly important. We have a wide range of valve assemblies for the large number of applications. The valve assemblies are mounted directly on our motors. This allows direct control of the motors and is particularly suitable for applications where very good control is required. All motors in our delivery program are suitable in the A1 version for mounting sub-bases with or without shock protection.

As standard, we distinguish between four variants:

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

Phone: 86-20-85826654

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]

21,99

32,99

Theoretic specific torque

[Nm/bar]

0,35

0,53

Inlet pressure, max.

[bar]

250,00

250,00

Max, torque

[Nm]

77,90

118,00

Operating speed range

[rpm]

10-2250

10-1500

Intermittent power

[kw]

7,50

7,50

KM 22 – KM 32

Phone: 86-20-85826654

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]

43,98

65,97

Theoretic specific torque

[Nm/bar]

0,70

1,05

Inlet pressure, max.

[bar]

250,00

250,00

Max, torque

[Nm]

156,00

236,00

Operating speed range

[rpm]

5-1800

5-1200

Intermittent power

[kw]

11,00

11,00

KM 45 – KM 63

Phone: 86-20-85826654

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 90

KM 110

Geometr. Displacement

[cm³/rev]

88,40

109,52

Theoretic specific torque

[Nm/bar]

1,41

1,74

Inlet pressure, max.

[bar]

210,00

210,00

Max, torque

[Nm]

266,00

333,00

Operating speed range

[rpm]

5-900

5-750

Intermittent power

[kw]

10,00

10,00

KM 90 - KM 110

Phone: 86-20-85826654

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.