Abstract: The embodiments of invention relate to a hot runner nozzle including at least one nozzle duct for a plasticized plastic, which ends in a nozzle tip and which can be temperature-controlled by a heater, wherein the hot runner nozzle can be attached to an injection molding tool or the like and wherein the heater and the nozzle duct are provided in a common housing of the hot runner nozzle laterally next to one another. The housing encompasses at least one material recess, which divides the housing adjacent to the nozzle duct and adjoining to the heater into housing regions, which are spaced apart from one another.

Abstract: The embodiments of invention relate to a hot runner nozzle including at least one nozzle duct for a plasticized plastic, which ends in a nozzle tip and which can be temperature-controlled by a heater, wherein the hot runner nozzle can be attached to an injection molding tool or the like and wherein the heater and the nozzle duct are provided in a common housing of the hot runner nozzle laterally next to one another. The housing encompasses at least one material recess, which divides the housing adjacent to the nozzle duct and adjoining to the heater into housing regions, which are spaced apart from one another.

Abstract: A device for opening and closing injection nozzles in an injection moulding tool. The injection nozzle comprises a nozzle member, the nozzle opening of which can be opened and closed with a needle. The needle is stationarily arranged on a piston plate that is supported in a receptacle such that it can be moved in both axial directions similar to a double-action cylinder. A first work chamber is formed on the side of the piston plate which faces away from the needle and a second work chamber that can be acted upon with a fluid in order to actuate the needle is formed on the opposite side of the piston plate. The needle extends outward from the second work chamber through a recess in an end element that lies opposite of the piston plate.