The invention relates to an injection device (2) comprising a carrier housing(4), in whichan injection unit (8) having at least one injection liquid container (10) thatcan be pressedout can be inserted, and an actuating device (12), which can be driven alongan injectiondirection (R) to activate the injection unit (8), wherein said actuatingdevice comprises apiercing carriage (14), a receptacle (18) for the injection unit (8) and aninjection carriage(16), which can be displaced relative to the piercing carriage (14), saidinjection carriagehaving an actuating plunger (48) for acting on a plunger (50) of the injectionunit (8),wherein the piercing carriage (14) and the injection carriage (16) can beactuated by aforce application means at least in order to carry out a piercing stroke andan injectionstroke, and a piercing depth (tE) of the injection unit (8) can be set. Forthis purpose, thereceptacle (18) is mounted on the piercing carriage (14) adjustably in theinjectiondirection (R).
