Tew manufactures sterco welding rectifiers [forced air cooled]. These welding rectifiers are used as power source for manual metal arc welding jobs, with bare and coated electrodes suitable for ferrous and non-ferrous metals. These welding rectifiers are also used as an alternative to dc welding generators and have an edge over dc welding generators, as there are no moving parts in welding rectifier, except the cooling fan. It ensures almost nil maintenance cost besides too low initial cost as compared to generators. These welding rectifiers are also used as power source for gas shielded arc welding with tungsten electrode [tig] for the welding of stainless steel, copper alloys, submerged arc welding and also suitable for carbon air arc gauging.
