Drives with high required torques and at the same time low output speeds can often be realized economically more favorable by a combination of hydraulic motor and one- to four-stage planetary gear. In addition, spring-applied multi-disc brakes, which are required when holding static loads, can be installed between the motor and the gear unit.
With our geared motors, continuous torques of approx. 0.3 to 540 kNm can be achieved as standard.
The power range extends from 0.3 to 160 kW. If required, higher torques and outputs can also be realized.
We distinguish between coaxial and angular gearmotors.


Subplates for valve assembly DN6/DN10 according to DIN24340 (ISO 4401 - CETOP - RP121H) and DN8 according to ISO 10372-4.Combinations with integrated brake control are available.

Valve assembly with pressure relief and feed > 1.5 bar by 2 pressure feed valves MHDB16K2-2x420VFB (pmax. = 420 bar, Qmax. = 100 l/min). The integrated feed check valves open from 1.5 bar. In order to prevent a feed-out, the feed pressure at port "E" must be higher, or an additional protection by an external check valve at port "E" is recommended. Combinations with variant 1 available.

Valve assembly with pressure relief and supply >0.1 bar by 2 direct operated pressure valves DBDS10K1x/315bar (pmax. = 315 bar, Qmax. = 80l/min). The separate feed check valves open at >0.1 bar. Combinations with variant 1 are also available.

Valve assembly with pressure relief and supply > 0.1 bar through a pilot operated double pressure valve DDP16ENxxx (pmax. = 480 bar, Qmax. = 400 l/min) or DDP32ENxxx (pmax. = 480 bar, Qmax. = 700 l/min). The valve pressure setting applies to both directions of rotation. The valve with leakage line "L3" always works against the leakage pressure. Combinations with variant 1 are available, on request also with valve bodies > DN10.

KM 11 - RM 11

KM 22 – KM 32

KM 45 – KM 63

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 11 - RM 11
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
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
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
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.

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.

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.

Guangzhou Dusterloh Machinery Co., Ltd. (The official overseas office of Düsterloh Fluidtechnik GmbH Germany) Hong Kong Dusterloh Machinery Co. Limited Tel: +86 20 85826654 Fax: +86 20 85826654 E-mail: tony.ling@gzduesterloh.cn E-mail: binhua.jiang@gzduesterloh.cn Add: Room No.B312, 3 Hankee Avenue Dalong Street Panyu District Guangzhou City China



