Abstract: The present invention relates to equipment used for investment casting and may find application in various fields of engineering to enable automation of the process of manufacturing easily fusible patterns.The proposed apparatus comprises a pressure casting die formed of two parts, one of which is mounted for reciprocated movement in the horizontal, an injection means formed of a heated body with a chamber to receive a pattern material, an air cylinder with a hollow piston and a hollow rod, a means for evacuating the chamber and the pressure casting die cavity after introducing a pattern material therein, and a means for supplying a fluid to the pressure casting die upon evacuation of the latter, said fluid supply means comprising a moving element fitted with a channel adapted to intermittently communicate a fluid source with the pressure casting die cavity.