Film blowing machines can be divided into many types according to different classification standards. The following are the main classification methods and their corresponding models:
1. Classification by head structure
Single head film blowing machine: suitable for simple film production, simple structure and low cost4.
Double head film blowing machine: equipped with two heads, it can produce films of different specifications or materials at the same time to improve production efficiency.
Rotary head film blowing machine: the head can rotate to make the film thickness more uniform and reduce the problem of large and small heads during winding.
2. Classification by winding method
Single winding film blowing machine: only one winding device, suitable for standard production needs.
Double winding film blowing machine: equipped with two winding devices, it can wind two different specifications of film at the same time.
3. Classification by material applicability
PE film blowing machine: used to produce polyethylene film, including LDPE, HDPE, LLDPE, etc., widely used in packaging film, agricultural film, etc.
PP film blowing machine: suitable for polypropylene film, high temperature resistant, often used in food packaging.
PVC film blowing machine: used for polyvinyl chloride film, commonly used in construction, packaging and other fields.
PA film blowing machine (nylon film blowing machine): wear-resistant, puncture-resistant, suitable for high-end packaging.
POF film blowing machine: produces heat shrink film with high transparency, used for commodity packaging.
Degradable film blowing machine: suitable for biodegradable materials such as PLA, PBAT, etc., in line with environmental protection trends.
4. Classification by the number of film layers
Single-layer film blowing machine: simple structure, suitable for ordinary packaging film, agricultural film, etc.
Multi-layer co-extrusion film blowing machine (such as three-layer, five-layer, seven-layer, etc.):
Three-layer co-extrusion film blowing machine: combined with different material characteristics, improve the barrier and toughness of the film, suitable for food and medical packaging.
Five-layer co-extrusion film blowing machine: further optimize the film performance, such as fresh-keeping, moisture-proof, puncture resistance, etc., suitable for high-end packaging.
Seven-layer and above co-extrusion film blowing machine: used for special functional films, such as high barrier packaging, aerospace materials, etc.
5. Classification by use
Agricultural film blowing machine: such as greenhouse film blowing machine, producing functional agricultural film such as anti-aging and anti-drip.
Industrial packaging film blowing machine: producing heavy packaging film, vacuum packaging film, etc.
Laboratory small film blowing machine: used for material testing and research and development, with low output but high precision.
6. Classification by cooling method
Externally cooled film blowing machine: uses air ring cooling, suitable for ordinary film production.
Internally cooled film blowing machine (IBC system): combines internal and external cooling to improve production efficiency, suitable for high-speed and high-precision film production
