This kind of packaging is similar to shrink film machine packaging. The winding machine wraps all the objects on the tray around the tray, and then two hot grabs heat the film at both ends together. This is the earliest form of use, and more packaging forms have been developed. This kind of packaging requires that the winding film machine should be wide enough to cover the tray, and the shape of the tray is regular. So it has its own use. It is suitable for manual packaging with film thickness of 17-35 um. This kind of packaging is the simplest one in packaging. The film is mounted on a rack or handheld, rotated by the tray or winding film machine. Rotate around the tray. Mainly used for repacking wrapped trays after they are damaged, and common tray packing.

This kind of packaging is slow, suitable film thickness is 15-20 micron; tray mechanical packaging is the most common and widespread form of mechanical packaging, which is rotated by the tray or membrane around the tray, and the winding machine can be fixed on the bracket and moved up and down. This packing capacity is very large, about 15 to 18 plates per hour. The suitable thickness of winding film machine is about 15-25 micron. Horizontal mechanical packaging is different from other packaging. It rotates around articles by winding film machine. It is suitable for long goods packaging, such as carpets, sheets, fiberboard, profiles, etc.

The main function of winding film machine is to stabilize, cover and protect products. It is widely used in the whole package of wine, cans, mineral water, beverages, cloth and other products. The product has good flexibility, impact resistance, tear resistance, not easy to break, not afraid of moisture, shrinkage rate.