CEMC High-performance actuators

Benefits

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

Features

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:

Technical Data

Overview

	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