A+B+A 3-layer Co-extrusion Twin Die Blown Film Extruder enjoys special advantages and can produce both HDPE film and LDPE and LLDPE film. It improves the physical toughness of film through multi-layer co-extrusion. With one main extruder providing material for out and inner layers, it reduces one main extruder configuration and achieves energy saving and low consumption.

Here is the main technical parameters:

model	SJ45*2-600	SJ55*2-800	SJ65*2-1000
Suitable material	LDPE/HDPE/ PA	LDPE/HDPE/  PA	LDPE/HDPE/ PA
Film width(mm)	500	700	900
Film thickness(mm)	0.02-0.02	0.02-0.02	0.02-0.02
output(kg/h)	60	80	100
extruder
Screw diameter	45	55	65
ScrewL/D ratio	30:1	30:1	30:1
Screw material	38CrMoAla	38CrMoAla	38CrMoAla
Cylinder material	38CrMoAla	38CrMoAla	38CrMoAla
Cylinder cooling	120w	120w	120w
Driving motor(kw)	11	15	22
die
Die size(mm)	150	200	220
Air ring	250	350	380
Air blower(kw)	1.5	1.5	2.2
take-up unit
Roller width	600	800	1000
Take-up-Speed(m/min)	0-80	0-80	0-80
Take-up motor(kw)	1.5	1.5	1.5
winding unit
Roller width	600	800	1000
winding Speed(m/min)	0-80	0-80	0-80
winding motor(kgf.cm)	30	50	50

Here is the optional equipment: