New servo technology from Festo is helping Grolsch to put the iconic swing tops on its bottles of lager. The ‘swing-top transfer unit’ was custom-designed by Festo in conjunction with system integrator MCA Linear Motion Robotics and is installed at the Grolsch Enschede plant in The Netherlands.
The Grolsch 'swing-top transfer unit' features the new Festo EMMT servo motor and CPX-E automation system and provides approximately 3,800 bottles per hour with a porcelain cap and rubber ring.
One of the most important changes in the new design is the replacement of the two electric and parallel positioned axes that carry out the horizontal movement (X-movement) by a heavy duty EGC axis. This has a double guide that is actuated by new servo technology in the form of Festo EMMT servo motors.The EMMT compact servo motor has a single cable for both motor and encoder signals. This means it can generate a very low holding torque, enabling it to synchronise several axes, even during lower speeds. In addition, the EMMT has a digital, absolute displacement encoder (single- or multi-turn) and is available in protection classes IP40 and IP67.