Film enters the in-feed section from the unwinder section. Edge of the film is heated before the film enters the spike chain. The film from the in-feed is transported into different stations by the spike chain accurately using a servo motor based driven system with an accuracy of +/- 0.3 mm. Where the material used is PP, there is an optional chain expander system available where the chain track width is pneumatically stretched to control the sagging of plastic film.