Centrifugal casting machine for manufacturing rotor

A centrifugal casting machine, comprising:

• a rotating plate having a through-hole formed in a central portion thereof and configured to rotate by means of a rotational force;
• a sleeve installed on the rotating plate and having a hollow cylindrical shape, wherein an internal diameter of the sleeve corresponds to an external diameter of a core stacked inside the sleeve;
• an upper mold disposed inside the sleeve such that an outer circumferential surface of the upper mold is in contact with an inner circumferential surface of the sleeve, the upper mold defining a first molding space between the upper mold and the core, to mold an upper end ring;
• a lower mold disposed inside the sleeve and slidingly moving along the inner circumferential surface of the sleeve, the lower mold defining a second molding space between the lower mold and the core to mold a lower end ring;
• a dummy shaft coupled to a top side of the lower mold to support the core and prevent a molten metal from being introduced into a center of the core;
• a cap coupled to a top end of the dummy shaft to press the core from a top;
• and
• a hydraulic ram slidingly inserted into the through-hole of the rotating plate, a top end of the hydraulic ram being coupled to a bottom side of the lower mold and a bottom end of the hydraulic ram being coupled to a lifting device such that the hydraulic ram moves up and down by the lifting device, thereby the lower mold moving up and down relatively to the rotating plate.