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Hydraulics

M3B & M4* Series Motor

Medium Duty Vane Motors For Severe Duty Applications, High-Pressure up to 230 bar, High-Speed up to 4000 RPM and Low Fluid Lubricity (HF-1, HF-2A, HF-3, HF-4, HF-5).

TheM3B and M4* Bi-Directional Vane Motors have been specifically designed for long life in severe duty applications. Torque range (Nm) 102 to 567 (at 175 bar) with a maximum operating pressure of 175 to 230 (bar).

The vane, rotor and cam ring are pressure balanced to increase the motor lifetime and efficiency over the full speed range. The high starting torque efficiency allows the motor to start under high load without pressure overshoots, jerks and high instantaneous horsepower loads.

The balance vane cartridge concept provides high volumetric efficiency, longer life, lower noise, and a high starting torque efficiency. The double motor is ideal for applications to obtain three speeds.

 

  • Specifications
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    Performance Characteristics

    Torque Range (NM) 102 to 546 (at 175 bar) -
    Flange Size SAE B, SAE C, SAE A -
    Rotation Bi-directional -
    Port Connection Outlet SAE 16 - 1-5/16" UNF, 1" SAE 3000 - UNC thread, 1" SAE 3000 - Metric thread, SAE 20 - 1-5/8" UNF, 1"1/4 SAE 3000 - UNC thread, 1"1/4 SAE 3000 - Metric thread, SAE 32 - 2"1/2 12 UNF, 2" SAE 3000 - UNC thread, 3/4" SAE 3000 - UNC thread, 3/4" BSPP, SAE 12 -
    Maximum Operating Pressure (Bar) 175 to 230 -
    Rated Speed (RPM) 3600 to 4000 -
    Brand Denison -

    Features and Benefits

    Improved Performance : When operating at very low speeds on applications such as swing and load hoist drives, the vane motor exhibits very low torque ripple -
    Enhanced Lifetime : Vane motors begin life with high volumetric efficiency and maintain that efficiency throughout their operating life -
    Easy Installation: The high starting torque efficiency of the vane type motors allows them to start under high load without pressure overshoots, jerks and high instantaneous horsepower loads -
    - -
    High starting torque efficiency The high starting torque efficiency of vane type motors makes them especially applicable in load hoist winch drives, swing drives and propulsion drives. This high starting torque efficiency allows the motor to start under high load without pressure overshoots, jerks and high instantaneous horsepower loads
    High volumetric efficiency Vane motors begin life with high volumetric efficiency and maintain that efficiency throughout their operating life
    Low torque ripple at low-speed When operating at very low speeds on applications such as swing and load hoist drives, the vane motor exhibits very low torque ripple
    2 and 3-speed versions available The M4DC, because of its unequal size cartridges, allows the use of-3 speed operation. This makes them more applicable in traction drive circuits to replace manually shifted gear-boxes. 2-speed motors are available in a wider range of ratios than standard gear motors
    Balanced design Vane, rotor and cam ring are pressure balanced to increase life and efficiency over full speed range
    Interchangeable rotting groups Rotating groups may be easily replaced to renew the motor or change displacement to suit altered requirements for speed or torque
    Reversible rotation The motors may be stopped or reversed repeatedly and rapidly driving or braking the connected shaft load at controlled torque levels
    Wide speed range Starting to maximum RPM, with full torque capability during acceleration
    Ports and mounting Conform fully to SAE J744c (ISO-3019-1) standards to simplify refitting and installation
    Fire resistant fluids Are easily used in the standard M3B and M4* versions of these motors. These include phosphate or organic ester fluids and blends, water-glycol solutions and water-oil invert emulsiona
    M3B and M4* series motors The M3B and M4* have been designed especially for severe duty applications which require high pressure up to 230 bar, high speed up to 4000 RPM and low fluid lubricity (HF-1, HF-2A, HF-3, HF-4, HF-5)

    Markets

    Mobile -
    Marine -

    Applications

    Hoist Winch Drives -
    Swing Drives -
    Propulsion Drives -
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