Three Layer Co-extrusion Die Rotary  film blowing equipment

Configuration of equipment and main technical parameter

Extruding machine:

SJ35/30 2 sets   SJ45/30 1 set

1.Srew barrel material:38CrMoALA excellent alloy steel, according to heat processing technics strict.

2.Surface of srew harden:HRC56-60

3.Surface of barrel harden:HRC60-62

4.Srew diameter: Φ45mm,length to diameter:30:1

5.Srew rotary speed:15-120rpm.

6.The maximum product power of single extruder: 45kg/hSJ35/3070kg/hSJ45/30.

7.Barrel heating method:Adopting cast-aluminum heater,high heating efficient,less malfunction rate,long life-span.

8.Barrel heating power:about11Kw.

9.Barrel heating section:3 section.

3-layer co-extrusion cooling mold and air-ring

1.Mould specification: Φ150 or Φ175 or Φ200

2.Mouthpiece clearance: 1.2-2.3mm

3.Mould material:40Cr

4.Heating method: stainless steel heating ring.

5.Section of temperature control:4 sections

6.New type cooling air-ring:double negative pressure air-ring

Blowing film auxiliary:include haul-off auxiliary and winder auxiliary

1.      Haul-off auxiliary:3-layer frame.

2.       Winder:double friction passive wind,AB winder adjustable