The invention provides a manufacturing method for a vertical
casting machine for a super-large-section round billet, and relates to the technical field of round billet
casting. The vertical
casting machine comprises a steel billet supporting and guiding mechanism and a steel
ladle rotating mechanism, and the steel billet supporting and guiding mechanism is arranged below a pouring steel
ladle of the steel
ladle rotating mechanism; the steel billet supporting and guiding mechanism comprises a supporting frame and a formwork lifting device, the formwork lifting device is arranged in the supporting frame, and the end, close to the steel ladle rotating mechanism, of the formwork lifting device is connected with a pouring formwork used for bearing
molten steel poured by the pouring steel ladle. The formwork lifting device is used for conducting lifting motion in the height direction of the supporting frame according to the pouring process, and the method comprises the steps that a plurality of supporting rib plates are arranged in the upper stand column and the lower stand column correspondingly, the upper stand column and the lower stand column are welded and manufactured correspondingly, and the supporting rib plates are removed after heat treatment; and assembling the template lifting device into the supporting frame, and carrying out a
cold test on the template lifting device. The method can be used for producing super-large-section round billets, and the manufacturing requirements are met.