Abstract: An injection molding machine comprises a machine base, and a stationary platen and a moving platen supported by the base. Each platen supports a respective stationary and moving mold half for forming a mold between the platens. An electrically driven platen actuator is coupled to the moving platen for advancing and retracting the moving platen between mold-closed and mold-open positions. At least one hydraulic clamp actuator is coupled to the platens for clamping together the stationary and moving platens when the moving platen is in the mold-closed position. A hydraulically powered rotary injection drive is coupled to the plasticizing screw for rotating the screw, and a hydraulic injection actuator is coupled to a plasticizing screw for injecting the injection material into the mold.