Hydraulic cylinder

摘要

In a hydraulic cylinder with longitudinally displaceable piston, in particular for advancing tubes in gallery or tunnel construction, which can be inserted between a press abutment and a thrust ring which can be supported on the tubes, the outer casing (1') of the hydraulic cylinder (1), in a firmly positive-locking and/or frictional manner or in a firmly adjustable manner, has at least one supporting body (5) serving as pressure abutment in order to provide a small overall length and a large stroke. <IMAGE>