OVERVIEW. Product Overview. Lorch MicorMIG 400 VRD Control Pro Mig Welder. The innovative and patented Micorboost technology maximises power and the voltage reserve in the arc, optimising welding properties for all sheet metal as well as medium and heavy steel work with mixed gas or under CO2 alike. Outstanding welding results on steel, stainless steel, and aluminium are the result. Key Features. 3 steps and weld operating concept. Stepless current adjustment. Digital volt-amperage display. 21 step dynamic arc control. Automatic settings (synergy function). Simple process and welding program selection. OLED graphic display - for displaying the 3rd main parameter. Tiptronic job memory for 100 welding tasks. NFC technology allows setting up of a personalised authorisation system for welding system operation. Timed lock for the end of the working day additionally prevents unauthorised work on the welder. Combines robust performance with efficient inverter technology and a stand-by function. Dimensions (LxWxH) : 880x490x885mm. Weight: 61kg. Warranty: 3 years