TOLZ | Welding Machine 20~200A | ARC 200BDigital contro system supported by MCU simplifies circuit and improves overall relaibility, precision and response speed. Anti Stick function can prevent electrode sticking, overheating and destruction. Self adaptive Arc Force function ensures a stable and continuous arc during welding especially when the length of output cable changes. Built In Hot Start function ensures a smooth start and prevents the sticking of electrodes to the workpiece.