Abstract: Described is a compensator (1) for unbalanced compression forces for press machines (100), comprising: a first body (20) having a first concave coupling surface (21) and a first end portion (22) opposite the first coupling surface (21); a second body (30) having a second convex coupling surface (31) and a second end portion (32) opposite the second coupling surface (31), the first (21) and second (31) coupling surfaces being geometrically coupled to each other in such a way as to allow a relative rotational movement between the first body (20) and the second body (30). More specifically, an end portion (22, 32) of at least one of the bodies (20, 30) is configured for being fixed to a structural element (101) of a press machine (100), the end portion (32, 22) of the other body (30, 20) being configured for forming an abutment surface designed to interact, in use, with a free end (402) of a stem (401) of a gas cylinder (400) of a press machine.

Abstract: A device (1) for checking the state of charge of a gas spring (100), comprises: a supporting structure (2) equipped with connecting means (3) adapted to be reversibly connected to a gas spring (100); a plunger (4) slidably received, at least partly, in the supporting structure and having a first end (4b) adapted to interact, in conditions of use, with a charging valve of a gas spring, the plunger having a second end which has an abutment surface (4d); pushing means (6) operating on the abutment surface (4d) of the plunger (4) to apply a measured thrust on the plunger (4) such as to induce the displacement thereof; a position indicator (5) operatively associated with the plunger (4) and configured to represent the position of the plunger relative to a reference element (7). Also described is a method for checking the state of charge of a gas spring (100).

Abstract: A device (1) for checking the state of charge of a gas spring (100), comprises: a supporting structure (2) equipped with connecting means (3) adapted to be reversibly connected to a gas spring (100); a plunger (4) slidably received, at least partly, in the supporting structure and having a first end (4b) adapted to interact, in conditions of use, with a charging valve of a gas spring, the plunger having a second end which has an abutment surface (4d); pushing means (6) operating on the abutment surface (4d) of the plunger (4) to apply a measured thrust on the plunger (4) such as to induce the displacement thereof; a position indicator (5) operatively associated with the plunger (4) and configured to represent the position of the plunger relative to a reference element (7). Also described is a method for checking the state of charge of a gas spring (100).