Round forming shoulder

Matching characteristics of film and forming shoulder are essential for a fluently and damage-free transformation of film to tube. Besides thickness and slide characteristics, elasticity of the film will have to be taken into special account during design resp. modelling process of a forming shoulder. Film qualities with restricted elasticity · Aluminum-laminated film · laminated films with Polyester, Polypropylene, paper Film qualities with high elasticity · Polyethylene-mono films · co-extruded multilayer films Films with restricted elasticity require a forming edge of mathematical precision, higher elastic film qualities require less precise forms for their faultless processing. A milled forming shoulder tube will result in optimum transforming geometry. This design is universally applicable and meets even the most demanding requirements.