SURETHERM 20X The SURETHERM20X is a stationary induction heater with ergonomic rotating yokes, making it the all-in-one in the SURETHERM series. The rotary yoke makes it easier to work with the heater because there is no need to lift the part and remove the yoke. This machine is used for professional parts of bearings (maximum weight: 100 weight, installation maximum diameter: 500 mm). The diameter as long as the extension yokes are used is 680 mm.