These inductin machines are used for hardening annealing melting brazing soldering tempering shrink fitting bonding of plastic and glass tube welding heating for hot forming stress reliving and a number of other application.The basic machines consist of completly closed cabinet with water-cooled forced air system in which the air within the cabinet is re-circulated through a water cooled radiator and filtered air is circulated throughout the cabinet to dissipate the heat.The inducting heating machine are fitted with controls meters over load protection for grid and anode and mcbs for main circuit.They are robust in construction maintenance free and operator free and operator friendly.