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 , 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 , is delimited axially at the front and at the rear by closure plates , 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 (A) of the supporting housing and arranged outside the half-shells , and an abutment frame , which runs parallel to the closure plates 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 , 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 , is delimited axially at the front and at the rear by closure plates , 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 (A) of the supporting housing and arranged outside the half-shells , and an abutment frame , which runs parallel to the closure plates and to which the axial actuator which displaces the push rod is fastened on the side facing away from the supporting housing . <EOS>