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  • Easily integrated into existing equipment
  • Increased acceleration and speed of the robotic arm and welding gun
  • Better process control and stability compared to fluid actuation
  • Reduced maintenance costs


  • Very compact, with integrated motor
  • Extended service life thanks to planetary roller screw technology
  • Very light material with aluminium body
  • Very low maintenance requirements and easy relubrication process
With 20 years of automotive experience in car body spot welding, the last generation of CEMC offers multiple configurations to fit customer needs and to provide the best power-to-weight ratio on the market. The integrated and specially designed hollow shaft motor gives an extreme axial compactness of the actuator and a lightweight construction (only 12 kg). By using planetary roller technology we maximize the service life: it can deliver twice the life of the former series (up to 20 million welding spots over lifetime), requiring only one relubrication interval in between (up to 10 million spots on a single gun without any relubrication). It is possible to equip the actuator with different position feedback devices, resolver or encoder, compatible with main robot and servodrive OEMs from the market, as well as choose from several attachment options, that lead at the end to more than 600 different combinations. On demand customizations on attachment sizes and special greases are also available.

Case studies:

      CEMC1808 CEMC2105
      Max dynamic axial force (kN) 15 25
      Speed (mm/s) 480 300
      Dynamic load capacity (kN) 38 59
      Screw type / diameter lead (mm) Roller screw, 18/8 Roller screw, 21/5
      Max stroke (mm) 150 and 300 180
      Motor type Servo motor Servo motor
      Duty cycle (%) 100 100
      Operating temperature 0 to 40°C 0 to 40°C
      Type of protection IP65S IP65S
      IL-05001/7-EN-February 2023 High performance actuator
      IL-07017/5-EN-November 2022 Electric cylinder CEMC
      IL-07031-EN-March 2021 High power density solution
      TC-08035/1-EN-November 2022 CEMC operating manual
      EL-04012-EN-July 2022 Compact actuator updates.pdf
      EL-04014-EN -October 2022 Linear solution for spot welding
      EL-02006-EN-January 2023-Full electric transition
      EL-03008/2-EN-February 2023 Linear technology for joining
      EL-03022-EN-Solution for plastic and rubber

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