About Shrink Bundlers: Bundlers heat shrink machine are used to wrap collated groups of bottles on a tray in shrinkable film. Individual trays arrive at bundlers inline infeed conveyor by hand with the long side leading. Trays then contact a film curtain, which loops the film over the products from front to back. A heat seal bar cuts and seals the film. The bundle then passes through a single fan heat tunnel which shrinks the polyethylene film tightly around the tray.

Production Speeds and Dimensions of heat shrink machine: The production rate depends upon the size and stability of the product, and the thickness of the film. The length (perpendicular to direction of travel) is often limited by the film specifications.