Installing a VFD on the screw extruder can extend its service life beyond just speed control. This is because the VFD can also act as a soft starter. It starts smoothly and gradually, and this start-up time can be set according to your own needs. In this way, not only on the screw extruder, but on many other pieces of equipment as well, the service life of the equipment will be significantly extended once a VFD is installed.