50 Years of Demag Toggle Systems
Wednesday, 2 July 2008
Toggles are the most commonly built and used clamping system in Europe. Almost two thirds of all injection moulding machines of over 100 tonnes clamp-force used in Europe employ toggles as the clamping system. That the design is not static, but is constantly being developed and optimised, makes it the most reliable and dependable type of clamping system, with distinct technical and economic advantages.
The designers of the first single-screw injection moulding machines in 1956 at Ankerwerk Goller Bros. in Nuremberg put their trust in this closing principle. This was, of course, a toggle of simple construction and it would be a long development road to the computer-optimised 5-point double toggle system (of which more later) in today’s clamp units with ramped control of the endpoints. On this road the toggle system has undergone an exemplary, detailed development. It continues to be the guarantor of precise and reliable injection moulding.
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