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Enemac says it has found a cost-effective mechanical solution in clamping, namely, with its power clamping nuts, ESB and ESD. These operate with a hidden planetary gear in an outer casing that can be driven effortlessly by a small nut on top of the casing, the company notes. Thereby, the internal thread is slightly retracted so that the counter-piece is clamped. The principle is simple and the effect is large and with this concept, a force of between six to 20 t can be manually but easily achieved. Both types can be used almost everywhere, for example, for the tensioning of belt conveyors, tools in presses and punches, work pieces or during welding.