An injection molding machine (1) including: a bed (B); an injection device (3) provided to be movable with respect to the bed (B); a mold clamping device (2) provided on the bed (B); and a movement device (5) configured to move the injection device (3), in which the movement device (5) includes a hydraulic cylinder and a hydraulic pump for supplying a working fluid to the hydraulic cylinder, and the hydraulic pump is provided inside the bed (B).

An apparatus for injecting a molten plastic material into a mold is described. The apparatus includes a heated manifold (manifold) with channels to distribute molten material inside it, and a heated injector, to inject molten material to the mold cavity, equipped with a translatable shutter to regulate the flow of the injected molten material. An actuator is attached to the manifold to receive molten material from it to send to the injector and move the shutter. The actuator includes a piston connected to the plug, and a first conduit to bring a pressurized fluid from the outside to the piston. A plate includes a second internal conduit to bring pressurized fluid to the injector, where a gap separates the plate and the actuator. A connecting member is mounted to cross the gap and carry pressurized fluid from the plate to the actuator.