NECK DOWN MACHINE 109

The Neck Down Machine is designed to reduce the wall thickness and diameter of plastic tubes. The balloon is slipped over a mandrel and placed in the product fixture. The material, partially heated at the end of the balloon cone, is reduced to a defined inner diameter according to the size/ shape of the mandrel, and as a result of an applied linear pulling force.
Through the changing of either: temperature, preheating time, start position, pulling way or pulling speed, as well as the diameter of the mandrel, the resulting diameter of the balloon shaft is modified. The necessary process parameters for specific outcomes can be stored in separate menus ensuring a high level of process security and reproducibility.