Exlar® Actuators Used in Coal Press Filling Application

Our customer develops customized high-tech products and equipment in the areas of carbon technology and ceramics, environmental simulation technology and climate technology, sintered metal technology and ultrasonic welding technology in Germany.
 

Press Filling Application

Press filling coal sticks for electric motors.  The actuator moves a bin containing powdered coal dust into position above a mold. The powdered coal material is then deposited into the mold where it is pressed into the finished part.
 

Customer Challenge
The existing hydraulic cylinder was not fast enough to meet the customer’s production requirement.  In addition, the dusty environment contributed to accelerated wear and premature failure of the actuator.
 

Solution
The Exlar® GSX20 was selected for the application because of its speed and IP65 environmental protection.  The customer also considered another brand of electric actuator, but it did not have the required environmental sealing.
 

Results
The customer initially used a GSX20 with a single stack motor, which was faster than the hydraulic cylinder used previously. Eventually the customer settled on a double stack GSX20 which significantly increased both speed and acceleration relative to the hydraulic solution.