Cylinder with two-step movement

In a cylinder with two-step movement, comprising a housing with a first and a second end piece, a first and a second piston sliding in contact with the inside of the housing, said second piston supporting a tube-shaped piston rod which moves sealingly through the first end piece of the housing, a pressure medium tube which is mounted in the second end piece and which passes through the first piston and extends into the tube-shaped piston rod and through which pressure medium can be led into or out of a first chamber between the first and the second pistons, and between the first end piece and the second piston a second chamber, and between the second end piece and the first piston a third chamber, the second and the third chambers each having a pressure medium connection;

• the improvement in which the end of the pressure medium tube extending into the piston rod has a contact portion adapted to contact the inside of the piston rod thus making the pressure medium tube serve as a guide both for the piston rod and for the second piston connected to the piston rod.