Abstract: An automatic braze welding apparatus comprises a divisional rotatable index drive for indexing a rotatable plate in increments of 45.degree.. A plurality of clamping devices are used for safely seating a workpiece radiator at the divisional radial positions of the rotable plate. At least one flux supplying head is mounted on a first position of the divided rotatable plate, and at least one first welding manifold provided with a plurality of torches with at least one position changeable means is mounted on the divisional second and fifth positions, respectively. At least one second welding manifold performs second welding work at the upper surface of the divisional third and sixth positions, and at least one product position correcting device corrects any unbalanced state of the product at the fourth and seventh positions, thereby clamping the radiators by means of the product clamping means and removing it therefrom.