Bauer IE4-PM Synchronous Geared Motors for Explosion Hazardous Areas

Boosting Energy Efficiency With Variable Speed Drives.

The S series of permanent magnet synchronous motors (PMSM) from Bauer Gear Motor GmbH now offers variable-speed motors in efficiency class IE4 for use in hazardous explosion areas. This is the highest energy efficiency that can be achieved with the current state of motor technology. Total flexibility in mounting options allows unparalleled integration possibilities.

Generously dimensioned ball or roller bearings, case hardened forged and ground gears, and internally and externally reinforced gearboxes ensure a long, low maintenance service life. A hardened wear sleeve and spray ring at the rotor seal allow for reduced sump capacity, reliable lubrication and many years of leak free performance.

Superior protection of IP65 acc. to IEC 529 assures you that the all geared motors are dust tight and hose proof, and can be used outdoors or in wet and dusty environments without the use of additional enclosures. The full rated output is available the output shaft of the unit.

  • Specifications
    • + expand all
    • - collapse all


    Design Troque Mⁿ 5 Nm - 48 Nm -
    Lubrication Change First after 15000 hrs. -
    Connection Standard With CAGE CLAMP® -
    Noise Low noise gearing -


    Rated Power Pⁿ 0.75 kW - 15 kW -
    - -
    Combined with: - -
    BG-Helical Gearboxes  -
    BF-Parallel Shaft Gearboxes -
    BK-Bevel Gearboxes -
    BS-Worm Gearboxes -
    BM-Monorail Gearboxes -
    HiflexDRIVE -
    - -
    Standards CE-Mark, ISO9001, ISO14001, OHSAS18001 Motors according to EN 60034


    Protection Type - -
    Increased Safety - Zone 1 -
    S.XE.08MA4 -
    S.XE.08LA4 -
    S.XE.09SA4 -
    S.XE.09XA4 -
    S.XE.11SA6 -
    S.XE.11MA6 -
    S.XE.11LA6 -
    - -
    Dust Explosion Protection - Zone 21 εх II 2 D Ex tb IIIC T 160°C … 120° Db -
    S.XC.08MA4 -
    S.XC.08LA4 -
    S.XC.09SA4 -
    S.XC.09XA4 -
    S.XC.11SA6 -
    S.XC.11MA6 -
    S.XC.11LA6 -
    * The data corresponds to the characteristic curve of the motor, lower efficiency classes as IE4 can occur at the rated point -
    - -
    Enclosure IP65 (standard) IP66 (optional)
    Corrosion Protection CORO1, CORO2, CORO3 -
    Energy Savings Up to 40% more energy savings compared to IE2 -


    Features and Benefits: - -
    Protection type: Increased Safety – Zone 1 -
    II 2 G Ex e IIC T1 - T3 Gb -
    Dust explosion protection – Zone 21 -
    II 2 D Ex tb IIIC T 160°C ... 120° Db -
    Up to 40% more energy savings compared to IE2 -
    Short amortisation period -
    Small installation space -
    Compact drive unit -
    More torque with same motor frame size -
    Requires smaller installation space with same power -
    Reduced number of variants thanks to higher efficiency over the entire speed range -
    Design security thanks to reserves in drive unit capacity -
    Already meets the efficiency requirements of future standards -
    Completely enclosed, sealed against dust and water spray -


    Mining -
    Oil and Gas -


    Hazardous Areas -
    Chemical Processing Industry -
    Petrochemical -
  • Market Applications

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