Unimig is an Australian family owned business established in 1985. Unimig is pleased to offer through our distributor network a comprehensive range of MIG welding, TIG welding, Spot welding, Plasma and gas cutting equipment and welding consumables.Unimig is an Australian family owned business established in 1985. Unimig is pleased to offer through our distributor network a comprehensive range of MIG welding, TIG welding, Spot welding, Plasma and gas cutting equipment and welding consumables.