Abstract: The apparatus for die-casting cage type electric rotors in vertical presses, comprises a first and a second rotary table supporting a plurality of bottom die members, and a corresponding plurality of injection units; the tables are partially superimposed and are made to rotate in synchronism to sequentially align each bottom die member and a corresponding injection unit with an upper die member in a metal injecting workstation. Each injection unit comprises a sleeve and a plunger which are engageable and disengageable respective control cylinders and gripping members in correspondence with the metal injecting station and a biscuit removal station the injection sleeves and the bottom die members are movably supported by the rotary tables, to be rised and urged against a stack of laminations of a rotor in the metal injection station of the press.