Thermal dynamics plasma cutter The unit is specifically designed to serve the 35mm market with a high duty cycle of 80% in a 40°C ambient environment. Operating from a 415V three phase supply, the design incorporates features such as auto-pilot re-start, True Guard roll bar and the heavy duty SL100 Uorch® for superior performance. The unit can also be used for heavy duty gouging applications when fitted with the correct torch consumables.