
Rotary Die-head Film Blowing Machine with rotary die head(rotary mould),produce more flat even.
Blown Film Extrusion via Rotary Die System
The Rotary Die method of Blown Film Extrusion is employed to produce a variety of plastic films such as PE (HDPE, LDPE, LLDPE). This system comprises an extruder, cylinder, and screw components constructed from top-grade alloy steel that has been meticulously nitrided for hardness and superior resistance to corrosion. The specially designed screw augments the plasticizing process, leading to heightened production efficiency. Primarily used for manufacturing plastic films like LDPE and HDPE, this equipment finds application in areas such as food packaging, textiles, waste bags, and carrying pouches.
Key Attributes:
– Frequency inverters regulate the primary and traction motors.
– Screw and barrel material: 38CrMoAl treated with nitrogen.
– Gearbox: Features HARD teeth gear surface, alloy piston, and precision ground elements.

Rotary Die Dead Blown Film Extrusion
Optional Equipments:
1)Auto Loader
2)Air Compressor
3)Up and Down
4)Air Shaft
5)Masterbatch Dosing device
6)Automatic Winder Changer
7) Corona treatment
| Model | SJ-B50 | SJ-B55 | SJ-B60 | SJ-B65-1 |
| Material |
LDPE, LLDPE,HDPE,virgin raw material, recycled material, CaCO3 compound,masterbatch and additives material |
|||
| Film Color |
Transparent,Black,Red,White,blue…bag color changed by Masterbatch
|
|||
| Usage | Flexible packaging bags,T-shirt bag,Plastic Shopping Bag,trash bag,packing film,table cover,shrink film | |||
| Diameter of screw | φ50 | φ55 | φ60 | φ65 |
| Reduced diameter of film | 100-600 mm | 200-800 mm | 300-1000 mm | 400-1200 mm |
| One side film Thickness | 0.01-0.10 mm | |||
| Max.capacity (Kg/h) | 35 | 50 | 65 | 80 |
| Ratio of Screw L/D | 28:1 | 28:1 | 28:1 | 28:1 |
| Screw material | 38CrMoAl | 38CrMoAl | 38CrMoAl | 38CrMoAl |
| Power of main motor(kw) | 7.5-11 | 11-15 | 18.5-22 | 22 |
| Power of Traction | 1.1 kw | 1.1 kw | 1.5 kw | 1.5 kw |
| Heating Power(kw) | 11 | 13 | 19 | 21 |
| Delivery Day | 30-45 days | 30-45 days | 30-45 days | 30-45 days |
| Machine size (m) | 4.8×1.9×3.8 | 5.5×2.1×4.6 | 6.5×2.3×5.2 | 6.5×2.5×5.2 |
| Weight(T) | 1.5T | 2T | 2.3T | 2.6T |
| Power Voltage | 220V,380V,440V,480V(Customized based on request,For example: USA 480V 60Hz, Mexico 440V/220V 60Hz, Saudi Arabia 380V 60Hz, Nigeria 415V 50Hz…) | |||
| Material Core Diameter | 76mm(3 inch) | |||
| Machine Working Time | 24 hours * 7 days | |||
| Warranty | 1 year | |||
| Optional Devices | Auto loader, masterbatch dosing system, rotary die head, bubble controller, corona treater, embossing roller, automatic winder, double winder | |||
| Technical Assistance | Engineers available to service machinery overseas | |||
※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;