
Biodegradable Blown Film Extrusion
The Biodegradable Blown Film Extrusion process employs materials such as PLA, PBAT, corn starch, calcium carbonate, and other biodegradable compounds to manufacture vest bags and trash bags. The key advantages of this process are its complete degradability and commitment to environmental sustainability. The die-head features an optimized internal 8-hole inflow feed structure, specifically designed for producing film with biodegradable materials like PLA and PBAT in blown film extrusion applications.
Biodegradable plastic bags can decompose into carbon dioxide, water, methane, and other natural substances, allowing them to reintegrate into the carbon cycle over a specified period and under particular environmental conditions.

biodegradable blown film extrusions

biodegradable blown film extrusions
| Model | SJ-50-PLA800 | SJ-55-PLA1000 |
| Material | Biodegradable PLA resin | Biodegradable PLA resin |
| Diameter of screw | Φ50 | Φ55 |
| L/D Ratio | 30:1 | 30:1 |
| Max. Film width(mm) | 800 | 1000 |
| Film thickness (mm) | 0.015-0.10 | 0.015-0.10 |
| Extrusion capacity | 30-80kg/h | 50-100kg/h |
| Main motor | 18.5kw | 22kw |
| Hard Tooth Face Gear Box | 173# | 180# |
| Air ring | Double lip | Double lip |
| Machine Size | 4500*2600*5200mm | 4900*2600*5200mm |
| Weight | 2000kgs | 2500kgs |
※Correct specifications depend on the actual model. All specifications are subject to change without prior notice.
If you only buy one machine,we will pack machine with wooden pack,and loading container with Less Than Container Load(LCL).

If you buy one container machines,we will pack machine with stretch film and loading container directly (FCL full container load).





Our Main parts cooperator as following brand,but standard parts all made from China.
How To Find Polyethelene For Blown Film Extrusion.
Extrusion Film Extrusion use Polyethelene,such as
Low Density Polyethylene(LDPE),High Density Polyethylene(HDPE) and Linear Low Density Polyethylene(LLDPE),Polypropylene(PP).
Below are big brand material supplier in the world,they open office all over the world,you can check them in local market.
1.Sabic Saudi Basic Industries Corporation
2.ExxonMobil Chemical Company
3.Dow Chemical Company

China Evergreen Machinery Co., Ltd. is a manufacturer and supplier of plastic film and plastic bag production equipment for the entire factory, including blown film machines, bag making machines, flexible printing machines, copper tube machines, recycling extruders, stretching film machines, and foaming machines.
Whatsapp:0086-13088651008;