The Belt Actuator Kit designed for carrying heavy loads. It comes with V-slot gantry and provides smooth operation for a Gantry along a 20×60 V-Slot Linear Rail. It is both accurate and quick, ideal for industrial applications. This Kit includes a Nema 23 Stepper Motor! This kit is an easy way to get all the pieces needed for the build. You'll have everything you need to get up and running in no time.