This heat-shrinking machine is used for automatic online shrinkable packaging with automatic detection through photoelectric. It is selected two modes of automatic feeding or manual feeding. The machine is used folded membrane and seal for other three sides. According to the equipment having different configuration and product specific qualitative, packaging speed can reach 20 to 45 pieces per minute. Constant temperature heating sealing and cutting system can be used for sealing and cutting PP/POF shrink film and other various industrial standards. Perfect sealing and beautiful, especially suitable for POF film sealing and cutting with perfect sealing, packaging specifications products of different size can be done just through using the handwheel adjustment, more easy to operate. Adjustable speed feed system, before and after the storage work platform let the action really realize high speed, unmanned automatic operation.