Feeding device for feeding pasty masses, in particular silicone, to an injection moulding machine, comprising a pressing cylinder which receives the pasty mass, and a pressing ram which is arranged axially in said pressing cylinder and squeezes the pasty mass out of a discharge nozzle of the pressing cylinder, - wherein the pressing cylinder is designed as a cartridge which contains the pasty mass, consists of a polymer and can be exchangeably inserted into a supporting housing which supports the cartridge on all sides and is connected to an axial actuator for the pressing ram located in the cartridge, - wherein the supporting housing has a modular design and comprises two half-shells (2a, 2b), which support the casing of the cartridge and are connected to one another such that they can be folded open laterally and are articulated about a swivel axis running parallel to the longitudinal axis of the cartridge, wherein the receiving space for the cartridge, enclosed by the half-shells (2a, 2b), is delimited axially at the front and at the rear by closure plates (2c, 2d), and the front closure plate is provided with a passage opening for the discharge nozzle of the cartridge, while the rear closure plate is provided with a passage opening for a push rod of the axial actuator, which push rod acts on the pressing ram of the cartridge, - wherein the supporting housing has a rigid, outer supporting cage, which is formed by the front closure plate, at least two tie rods running parallel to the longitudinal axis of the supporting housing and arranged outside the half-shells (2a, 2b), and an abutment frame, which runs parallel to the closure plates (2c, 2d) and to which the axial actuator which displaces the push rod is fastened on the side facing away from the supporting housing. - wherein the pressing cylinder is designed as a cartridge which contains the pasty mass, consists of a polymer and can be exchangeably inserted into a supporting housing which supports the cartridge on all sides and is connected to an axial actuator for the pressing ram located in the cartridge, - wherein the supporting housing has a modular design and comprises two half-shells (2a, 2b), which support the casing of the cartridge and are connected to one another such that they can be folded open laterally and are articulated about a swivel axis running parallel to the longitudinal axis of the cartridge, wherein the receiving space for the cartridge, enclosed by the half-shells (2a, 2b), is delimited axially at the front and at the rear by closure plates (2c, 2d), and the front closure plate is provided with a passage opening for the discharge nozzle of the cartridge, while the rear closure plate is provided with a passage opening for a push rod of the axial actuator, which push rod acts on the pressing ram of the cartridge, - wherein the supporting housing has a rigid, outer supporting cage, which is formed by the front closure plate, at least two tie rods running parallel to the longitudinal axis of the supporting housing and arranged outside the half-shells (2a, 2b), and an abutment frame, which runs parallel to the closure plates (2c, 2d) and to which the axial actuator which displaces the push rod is fastened on the side facing away from the supporting housing.