Abstract: The invention relates to a clamping system for a press brake, the clamping system comprising an elongate beam comprising a receiving space for receiving a part of a bending tool, a clamping element, the clamping element being movable between a first position, in which it may engage on the bending tool for clamping it in the receiving space, and a second position for releasing the bending tool. The clamping system further comprises a pressure chamber fillable with a fluid, and an actuating member for driving the engaging element in accordance with a pressure of the fluid in the pressure chamber. The pressure chamber or a cavity housing the pressure chamber is integrally formed in the elongate beam. The invention also relates to a press brake comprising such a clamping system.

Abstract: A clamping system for a press brake includes an elongate beam having a receiving space for receiving a part of a bending tool. The elongate beam has at least two cavities formed therein, where each of the at least two cavities has an opening to the exterior of the elongate beam. The at least two cavities are interconnected internally. A press brake includes such a clamping system. A method of manufacturing an elongate beam for such a clamping system includes a step of providing a fluid connection to each of at least two cavities in the elongate beam by interconnecting the at least two cavities by machine from inside at least one of the at least two cavities.

Abstract: The invention relates to a clamping system for a press brake, the clamping system comprising an elongate beam comprising a receiving space for receiving a part of a bending tool, a clamping element, the clamping element being movable between a first position, in which it may engage on the bending tool for clamping it in the receiving space, and a second position for releasing the bending tool, and an actuating member for displacing the clamping element, the actuating member being movable between an active position, in which it urges the clamping element towards the first position, and an inactive position in which it allows the clamping element to move to the second position. The clamping system is characterized by a first biasing member acting on the actuating member for biasing the actuating member towards its inactive position. The invention also relates to a press brake comprising such a clamping system.