K..CMP.. Helical Bevel Servo Gearmotor

SEW Eurodrive


Explosion Proof Gearmotors


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Explosion-proof helical-bevel gear units


K series: three-stage


  • Gear units comply with Directive 94/9/EC (ATEX), or as of April 20, 2016 of the EU Directive 2014/34/EU (ATEX), equipment group II, equipment category 2, II2GD design
    • For use on the European market
    • Accepted in China
    • Accepted in Russia in conjunction with EAC certificates (successor to GOST-R)
  • Certified protection types:
    • Protection type “c”: Protection guaranteed by safe construction (design safety)
    • Protection type “k”: Protected by liquid immersion, EN13463-1 and -8
  • Standardized robust covers as shrink disk covers on the gear unit
  • All screws are secured against automatic loosening
  • Gear unit has a separate nameplate
  • High-quality oil seals
  • Lubricant can withstand high temperatures
  • High efficiency
  • Gearing with high fatigue strength
  • Long, maintenance-free service life
  • Available versions:
    • Foot-mounted or flange-mounted
    • B5 or B14 flange-mounted
    • Solid or hollow shaft
    • Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or TorqLOC®
  • Sizes K..37 to K..107, explosion-proof (three stages)
    • Double gear units for very low output speeds also available
    • Reduced backlash variant


Explosion-proof synchronous servomotors


CMP.. series


  • Compliant with Directive 94/9/EC (ATEX), or as of April 20, 2016 of the EU Directive 2014/34/EU (ATEX), equipment group II, equipment category 3
    • Category II 3GD, for use in zones 2 / 22
    • Category II 3D, for use in zone 22
    • also available with brake and Hiperface® encoder (with electronic nameplate) in category 3D

Explosion-proof helical-bevel servo gearmotors


Sensitive system environments with potentially explosive atmospheres require safe drive solutions. The ideal choice: The explosion-proof helical-bevel servo gearmotors. Force and dynamics for hazardous areas.


Powerful performance with our explosion-proof helical-bevel gearmotors


For drives used in areas with high gas or particle emissions, specific requirements must be met for explosion protection. The explosion-proof K..CMP helical-bevel servo gearmotors offer a complete solution that is cost-effective and safe.


With dynamic, precise, and compact servo drive technology on the one hand and certified safety for potentially explosive system environments on the other. The explosion-proof K..CMP.. helical-bevel servo gearmotors guarantee a high degree of functionality in terms of power delivery and precision – especially when complex processes and process reliability are involved. Thanks to their precise scalability, unlimited range of variants, and wear-free design, the explosion-proof K..CMP.. helical-bevel servo gearmotors are always the unit of choice.


Certification according to ATEX includes equipment group II and equipment category 3. The combinations are available in II3GD and II3D design.

Please feel free to contact us – We are ready to help with any application. Call us at (208) 322-2425