Plastic Zipper bag making machineUsage: This film blowing machine is specially designed to blow zipper lock bag film. It adopts the spiral die heads to blow out the film and the zipper strip at the same time; it can make different kinds of normal zip lock bags, slider zip lock bags and other kind of zip lock bag according to the customers’ various special requirements. It is characterized by simple structure, easy operation, attractive appearance, high automation and good control performance. Characteristics: SJ-50-B is an improved type of SJ50A. It is specially designed in order to be suitably used in the regions where having higher temperatures during the whole year.On the basis of SJ50A, SJ50B increases the vane cooling device and heat output device on the screw part.The other features of SJ50 B are the same as the SJ50A.Model SJ-50B SJ-60B Material LDPE LDPE Speed 8-25KGS 8-30KGS Width of bag 80-400m 100-580mm Thickness of film 0.03-0.22mm 0.03-0.22mm Screw diameter 50mm 60mm Screw ratio 28:1 28:1 Heater 10kw 13kw Power 11kw 15kw Overall dimension(L-W-H) 5200x1600x5200mm 5800x1800x5200mm