Abstract: A load cylinder for compensating unbalanced forces applied by a load. According to one implementation the load cylinder comprises a hollow ring-shaped body, a base fixed to a first end of the ring-shaped body, and a rod housed partially in the hollow space of the ring-shaped body, a chamber being delimited between side walls of the ring-shaped body, the rod and the base. The rod is housed partially in the chamber and may move in its interior. The rod comprises a housing on one end, and the load cylinder comprises a compensation member housed in the housing, the compensation member being acted on to cause the movement of the rod. The housing comprises a greater width than the width of the compensation member, with the result that the compensation member may move inside the housing.

Abstract: A cylinder having a hollow cylindrical body with an axially moveable rod disposed therein that is moveable between a rest position and a stop position. The cylindrical body and rod are configured so as to create a main chamber located between a lower surface of the rod and a base of the cylindrical body. And to also create an auxiliary chamber that is connectable to the main chamber via a flow channel in the rod. In one implementation the main chamber is adapted to contain a gaseous fluid and an oily fluid mixture when the rod is in the rest position so that the fluid exerts a first force on the lower surface of the rod to urge the rod toward the rest position. When the rod is in the stop position the main chamber predominately contains only the oily fluid.