Description

Professional welding inverters designed to work with unstable voltage supplies caused by the use of power units and long connection lines. They are controlled by microprocessor and deliver excellent welding performances: in MMA welding, with most types of commercial electrodes, and in TIG welding with HF and LIFT arc ignition. MMA functions: Arc Force and Hot Start, adjustable by the end user. The model 420C/HF can also weld cellulosic and aluminium electrodes. TIG funtions:2/4 strokes, pulsed 2/4 strokes. Fitted with a digital instrument which displays both welding current and voltage and all welding parameters are adjustable from the front panel. The unit is fitted with a VRD function, which allows to work even in hazard environments. The VRD function can be switched on or off as required. They may be used with remote control or foot pedal control. The high duty cycle makes these inverters suitable for use on heavy steel structural work, in industry and by professionals.