PET stretch film extrusion line

GWELL as China Plastic Extruder manufacturer ,PET stretch film extrusion line adopts single-screw or twin-screw extruder structure to produce cast film of single-layer, double-layer or three-layer co-extrusion structure.


China GWELL PET Stretch Film Extrusion Line is mainly used in the production of PE lithium battery separator; PP, PE sanitary material breathable film: PP, PE, pet, PS heat shrinkable packaging industry and other unidirectional and bidirectional stretch film fields.

PET Stretch Film Extrusion Line equipment is mainly composed of: extruder, die, casting, longitudinal stretching, transverse stretching, automatic winding, control system. Relying on the advanced overall design of China GWELL company.


PET stretch film extrusion line Product Flows

PET stretch film extrusion line Product Flows

Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Cooling bracket —– Haul-off—- Winder


Feature of PET stretch film


China Plastic Extruder manufacturer – GWELL According to the requirements of the application field for the special properties of the film, the film not only has the excellent physical and mechanical properties of polyester film, but also has excellent optical properties, good transparency, low haze, high gloss, heat Good stability, low thermal shrinkage, smooth surface, good peelability, light aging resistance, etc., and OPET thin mold also has the characteristics of high unidirectional tensile strength and unidirectional orientation, which is suitable for special fields. Polyester film shrink film is a new type of packaging material, which is easy to recycle, tasteless, and has good mechanical properties, especially in line with environmental protection requirements.


Features of China PET Stretch Film Extrusion Line Equipment


  1. The preheating roll, stretching roll, annealing roll and cooling roll of China GWELL PET Stretch Film Extrusion Line are all driven by servo motors, and the speed control precision is higher.
  2. The spacing of the stretching rollers is adjustable, which can achieve “zero spacing” stretching and reduce the necking effect.
  3. Single-point and double-point stretching are optional, and the stretching ratio is continuously adjustable.
  4. Applicable to PET/PP/PE/PA and other materials, the stretching ratio is in the range of 1-10 times, various stretching forms, multi-point stretching structure, and the line speed can reach 200m/min.
  5. Oil/electric heating optional: oil heating temperature is uniform, while electric heating can obtain higher process temperature.
  6. The side plate is provided with a labyrinth film guiding groove, which is convenient for manual film guiding.
  7. Aluminum alloy integral side plate frame, light weight, high strength, corrosion resistance and long service life.
  8. GWELL as a plastic extruder manufacturer high-performance PLC with 12-inch touch screen, high control precision and easy operation. The two-point stretching process can greatly improve film properties, such as film barrier properties, stiffness, flatness, tensile strength, and porosity.


Feature of PET stretch film extrusion line


  • Single screw or twin-screw extruder structure can be used to produce cast films with single-layer, double-layer, or three-layer co-extrusion structure.
  • China Plastic Extruder Supplier – GWELL adopts a specially designed extrusion process according to the particularity of PET materials or the characteristics of modified PET materials, after dehumidification and drying-automatic metering and feeding-extruder plasticization-T-type casting die-processing produce high-quality products.
  • Forming and setting device-automatic post-measuring system-preheating stretching and setting device-surface treatment device-edge trimming and edge material treatment device-automatic winding device or films with special orientation properties, which can be used in various fields.
  •  PET Stretch Film Extrusion Line specially designed longitudinal stretching roller.
  • The power transmission and control system adopts international famous brands.
  • The control system adopts precise PLC program control.
  • High wire drawing precision, fast speed and stable operation of the whole machine.


PET Stretch Film Extrusion Line Product Advantages


  • Easy to operate, long life and energy saving
  • Stable and reasonable extrusion
  • High-quality T-die with excellent film uniformity and stability
  • Enhanced cooling system
  • (using a primary cooling roll with a diameter of 720 mm and a secondary cooling roll with a diameter of 370 mm)
  • PET Stretch Film Extrusion Line advanced swing (swing) system
  • The highest winding speed in the same type of stretch film machine (up to 200 m/min)
  • High production capacity: up to 350 kgs/h at film thickness of 23 microns and 150 m/min
  • Optional automatic thickness gauge
  • Excellent stretch film roll quality, suitable for manual rolls and stretch rolls




Type of extrusion line single screw  PET film extrusion line twin screw PET film sheet extrusion line
Method of dealing material Crystallization and drying Free from crystallization and drying
Extrusion type Mono extruded or co-extruded
Finished Product Single layer, double-layer or multi-layer PET sheet
Raw material PET vergin ,flake and crushed material
Net width 1000mm-1500mm and more
Thickness range 0.02-0.1mm and more
Capacity 200kg/h-500kg/h and more
   Application Medical packing,Electronic components packing,Food packing and more


  1. Tinplate composite film: after compounding with tinplate, it can be used as a variety of food and beverage packaging;
  2. Packaging of electronic components: it can be made into anti-static packaging bags to package and shield sensitive electronic components, circuit boards, communication equipment and electronic products;
  3. Pharmaceutical packaging: mainly used for pharmaceutical tablet packaging;


About Gwell

Plastic extrusion equipment production plant

Innovation drives enterprise progress. Relying on the group’s strong technology, equipment strength and innovation spirit, Gwell is committed to the development of high-tech products and the international market. Gwell also actively exchanges and cooperates with world-class scientific research institutions. The new technologies, new processes and new products developed by Gwell are widely used in building materials(PP hollow sheet extrusion machine, PC optic extrusion machine), home appliances(SPC floor extrusion machine), packaging(PET sheet extrusion machine, EVOH film extrusion machine), 

medical treatment(PVC rigid sheet extrusion machine), automobiles(TPU film extrusion machine, PVB film extrusion machine), new energy(EVA solar film extrusion machine), aerospace(TPU film extrusion machine), rail transit(waterproof film extrusion machine) and other fields, which are closely related to human life.

Related Product


International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW.

Terms of Payment: LC, T/T

Delivery date:1-4 months

We are committed to produce sheet,film,board extrusion machine.Sheet extrusion machine includes PET sheet, PP、PS sheet, PLA biodegradeble sheet, PETG sheet extrusion machine, PVC soft sheet, PMMA、GPPS sheet extrusion line and so on.Film extrusion machine includes EVA、POE solar film, PVB film, TPU film, PETG film, ASA film and so on.Board extrusion machine includes PC solid board, PP、PE board ,etc.and other extrusion machine like floor, hollow, waterproof , foaming, non-woven fabric extrusion making machine.

Our Trading capacity is about 1,000 extrusion lines every year,and Gwell has exported to over 60 countries and regions for nearly 15 years.

It will take 1-4 months to produce,which caused by different reqiurements of customers and design for each extrusion line.

Yes,Gwell sale teams will provide specification according to customer’s requirements,meanwhile we can give the technical support to customers. Beacause we are not only sales but also technicians.If you are interested in our extrusion machine,please contact us.

Yes,Gwell is complete set of customized turn-key engineering project which include hardware& software design, technology commissioning and after-sales service.Otherwise we can provide formula support.

Cindy  Whatsapp/phone:+86 15906228639

Lucy Lu:      Whatsapp/phone:+86 18861956208

24 hours/7 days available

The whole extrusion line that we often adopt ocean shipping for saving cost,The nearest port of departure is China Shanghai,but if urgent cases like small spare parts,we will send to customer factory by air. Otherwise you can either use your own assigned shipping agent or our cooperative forwarder.

Are there any technical supports for extrusion machine that you need?​

Our service will be always at your disposal over the entire extrusion line life.So if you want to know about any other technical supports.Please contact us as soon as possible.

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