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Denison Vane Motors
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Your One-Stop Source for Denison Vane Motors
Denison M3B Vane Motor
Denison Vane Motor
Large power range: Denison Vane motors are a comprehensive range of vane motors in a large variety of motor sizes. Based on the individual maximum operating pressure the corresponding power range is up to 38 hp. The M3B can operate up to a pressure of 2500 psi. All motors are light-weight and compact in design, which results in a exceptional power-to-weight ratio. 

Long Service Life: Due to hydrostatic pressure compensation and a rigid bearing arrangement, an outstanding operational life can be achieved by using Denison Vane motors. In following the recommended operating conditions, service life results are above average. 

Lower noise level: All Denison Vane motors offer a noise level below the common limits. 

Versatile applications: Denison Vane motors are used in nearly all branches of industry and can be operated on mineral oil, as well as fire resistant fluids, within a wide range of viscosities.

The wide range of cam rings allows selection of a model exactly to suit any particular application. They are used industrially where there is a need to provide a relatively high torque from a power source of small dimensions and are found extensively on machine tools, plastic molding machines, winches and hydrostatic transmissions. 

The low moment of inertia of the rotating group allows high acceleration and deceleration resulting in rapid response to system control signals. 

A wide viscosity range allows for operation under extreme temperature conditions. Longer service life, however, can be achieved by observing the recommended operating viscosity. 

Ambient temperature has little influence on the operation of Denison Vane motors, provided fluid of the correct viscosity is used and the maximum permissible seal temperature is not exceeded.

Dension Vane motors have a hydrostatically balanced cartridge which offers flexibility in motor sizes within a single series. A firm but light force against the vanes is provided by springs in order to follow the contour of the cam. In general, the vanes are hydrostatically balanced which results in less friction, and are compensated for wear tolerances. Due to these features, a high mechanical efficiency of more than 90% results, and a volumetric efficiency which, depending on displacement is between 90 and 95% even after long periods of operation.

All motors can be supplied for flange or foot bracket mounting. Shafts can be supplied keyed or splined according to SAE.
Denison Motors
Each port plate incorporates two inlet and two outlet slots diametrically opposed, thus the radial hydraulic forces on the rotor are effectively in balance. Since the motor is bi-directional, either pair of diametrically opposed slots can be inlet or outlet, depending upon the direction of rotation.

Pressure oil enters the cavity between vane and rotor opposite the inlet port, driving the rotor assembly through the first quarter cycle, at which point the same cavity has reached an outlet slot through which the decompressed oil exhausts. This action is continuous. Speed of rotation is directly proportional to oil input and torque depends upon pressure for a given motor displacement.

Due to the hydrostatic balance, the rotor carries no radial forces and, therefore, only transmits the torque generated by the operating pressure. Leakage is reduced to a minimum since the floating port plate is loaded by the system pressure.

This and the double sealing edges of the vanes are factors which considerably increase the efficiency of the motor throughout its speed range.

Denison Vane Motors are available either internally or externally drained. For externally drained units the drain port must be directly connected to tank and back pressure on the port should not exceed 20 psi.

All motors are bi-directional, and therefore, direction of rotation is determined by porting connections.

Additionally all components within the same motor frame size are interchangeable, thus permitting flexibility of installation, simplification of maintenance and reduction in spare part stock.
Denison Motors
Externally Drained Single Cartridge Motors may be alternately pressurized at Ports A & B to 2500 psi max. Whichever port is at low pressure should not be subject to more than 500 psi.

Internally Drained Motors may be alternately pressurized at Ports A & B to 2500 psi max. Whichever port is at low pressure should not be subject to more than 50 psi.

For optimum operating efficiency and life, minimum continuous operating speeds should be above 500 RPM.

Minimum Replenishment Pressure
The inlet port of the fluid motor must be supplied with replenishment pressure as listed below to prevent cavitation during dynamic braking.
Speed 500 1000 1500 2000 2500 3000
Replenishment Pressure in PSI
M3B 8.7 14.5 20.3 27.6 36.6 50.8
These filling pressures are for motors only. Pressure drop in pipes must be added.
Denison M3B Vane Motor Operating Characteristics
Denison M3B Vane Motor Operating Characteristics
Denison M3B Vane Motor Theoritical Displacement and Torque
Denison M3B Vane Motor Theoritical Displacement and Torque
Denison M3B Vane Motor Model Codes
VANE MOTOR M3B - M3B1
Example Code Base Model
M3B * 009 1 N 00 B 1 **
M3B                
TYPE 1
CARTRIDGE 009, 012
018, 027, 036
SHAFT 1,4,X
3
ROTATION  N
PORTING COMBINATION  ** 00,01
DESIGN LETTER B
SEAL BUNA STD 1
VITON 5
EPR 4
PORT CONNECTIONS 00,02
01
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