It is used for blowing high-low pressure polyethylene, which has been widely used for producing laminating film, packing film, agricultural covering film, bag or film for textile and clothing and other packing material. The main motor adopts frequency control of motor speed to timprove the speed regulating stability of main motor and save electricity by 30%. The screw and material barrel adopt 38 chrome-molybdenum aluminum which has been nitrogen treated and the traction frame adopts lifting type. No matter what size the film is big or small, it can achieve the best effect of cooling.

Model	SJ-45-700	SJ-55-900	SJ-65-1400
screw diameter	Φ45	Φ55	Φ65
screw ratio L/D	30:1	30:1	30:1
screw speed	15-120r/min	15-120r/min	15-120r/min
main motor power	15kw-18.5kw	18.5kw-22kw	22kw-30kw
extrusion output(single)	55kg/h	80kg/h	100kg/h
range of die	Φ60 Φ120	Φ100 Φ150	Φ100 Φ250
single-sided thickness of film	0.01-0.10mm	0.01-0.10mm	0.01-0.10mm
max.folding width of film	600mm	800mm	1200mm
electric total capacity	30kw/40kw	40kw/45kw	45kw/65kw
overall dimension	3000×2800×5200	3500×3200×5500	4000×4000×6500
weight of machine	3.5T	4.0T	5.0T