Guangzhou Dusterloh Machinery Co., Ltd

High-precision motors

RMHP 90 - AEHP 40

Our high-precision motors are custom-built for applications where very high runout uniformity is required, especially in the low speed range.

They have an extremely low geometrical non-uniformity of 0.28% for RMHP motors and 0.73% for AEHP motors.

Due to low rotating masses, Düsterloh hydraulic motors allow a quick change of the direction of rotation.

Performance features

Lowest speeds (uncontrolled 1 min-1, controlled 0.1 min-1)
Highest speed constancy (standard deviation 0.011 min-1 at 1 min-1)
Extremely low mass moment of inertia
Full torque over the entire speed range
Excellent suitability for closed-loop control applications

Technical data

Displacement [cm3/rev]

43,7 - 109,5
Power [kW]

up to 18
Speed range [rpm]

1 - 2000
Torque [Nm]

up to 310

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.