Motors with modular cooling with welded steel enclosure, for maximum safety and availability in demanding applications, predestined for test stands, oil, gas and petrochemical plants. The inner cooling using two shaft-mounted fans ensures a high power density and homogeneous temperature distribution.

Your Benefits

  • Safe operation in hazardous areas Zone 1 and 2
  • Compact, reliable and long service life
  • Outstanding suitability for deserts and arctic regions
  • Highly modifiable for individual customer demands and retrofit applications
  • Increased reliability due to availability of redundant cooler and forced ventilation designs

Technical data overview

Brief overview
Shaft heights: 630, 710 mm
Power range: 3 – 10 MW
No. of poles: 2 – 16 poles (higher on request)
Voltage range: 3 – 11 kV (higher on request)
Degree of protection: IP23, IP55, IP56
Cooling type: IC 611, IC 616, IC 666, IC 81 W, IC 86 W, IC 01
Explosion protection: Non sparking, Zone 2, II 3 G Ex nA IIC T3 Gc
Pressurized, Zone 1, II 2 G Ex px IIC T3 Gb
(Ex tc, Ex e, and Ex pz possible on request)


  • Available in most Ex-protection types including Ex nA and Ex px (Ex tc, Ex e and Ex pz available on request)
  • All motors feature double-flow inner cooling for a high power density and a homogeneous temperature distribution
  • Available in high and low temperature designs
  • Highly modifiable for individual customer demands and retrofit applications
  • Highest degree of flexibility regarding both the electrical and mechanical features e.g.
    - starting characteristics
    - noise requirements
    - vibrvibration limits
    - efficiency requirements
  • Special design for subcritical variable speed operation available
  • Slip ring design available on request
  • Engineered based on international standards (ATEX, NEPSI, EAC (Gost), CCOE certified)

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Hotline :088-227-6542
Email :hoist@yonghong.co.th

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