Application: When used together with SJ—FM400×2 film blowing machine, SJ—45×28 plastic extruding machine can continuously blow HDPE and LDPE, with the min. thickness of 0.007mm (HDPE), 0.015 (LDPE), and max. fold path of 350mm, extensively used for the packaging of foodstuff, commodities and industrial products, more suitable for producing small lumbricus water-saving drip irrigation belts.Main Technical Parameters:Screw Dia.(mm)45Screw L/D Ratio28：1Driving Motor (frequency control)type: Y160M-4 power: 11kw. Total Power of Heater11.24kw.respectively two sets of head devices and air ring devices