EVA Solar Cell Encapsulation Film Line

The EVA film production line adopts casting technology to produce EVA solar cell packaging film. The main raw material is vinyl acetate copolymer (EVA), which is formed by heating, casting and extruding after adding additives.


Brief introduction of  EVA Solar Cell Encapsulation Film Line


The EVA film production line adopts casting technology to produce EVA solar cell packaging film. The main raw material is vinyl acetate copolymer (EVA), which is formed by heating, casting and extruding after adding additives.

Extrusion system Aiming at the processing characteristics of EVA polymer materials, GWELL has made special improvements to the extruder design of the production line. Over the years, it has not only created many technical advantages, but also has a deep understanding of the characteristics of single-screw technology and rich practical experience. Production costs are also reduced. The melt pump imported from Germany ensures that the melt can enter the mold with constant pressure and constant volume. The closed-loop system of the melt pump and the host plays an intelligent role in regulating the stable operation of the entire production line.

  1. The extruder adopts EVA-specific single-screw extrusion, and the constant temperature circulating water cooling system of the screw barrel solves the technical difficulties of EVA plasticization and non-crosslinking.
  2. Double-sided embossing is used on the roller body, and the technical difficulty of adhesive film sticking to the roller is solved.
  3.  The cooling part adopts cooling roller and stress-relief cooling bed, so that the film runs smoothly and is fully shaped, ensuring that the shrinkage rate is less than 3%.
  4.  The whole line adopts PLC automatic control to realize the operation of man-machine interface.
  5. The production line is equipped with an online quality monitoring and control system to ensure the qualified rate of products.
  6. Patent design micro-tension winder, the line speed of the whole machine production line can reach 18m/min.


 Brief introduction of EVA solar film


The development and utilization of green energy is the hottest topic at present. Solar energy is the most outstanding member of the green energy family. In recent years, the output of global solar power generation products has been growing globally at a rate of more than 45% every year. China’s investment and development in the field of solar energy have exceeded the world’s average level.

The solar cell module is made of tempered glass–EVA film–semiconductor chip–EVA film–battery backplane lamination package. After lamination, it is heated and pressed. During this process, the EVA film will be cross-linked and cured to fix the multi-layer structure together to protect the product while maintaining high light transmittance.

EVA film is a thermosetting and viscous film that can be used for glass interlayer. Due to the superiority of EVA film in terms of adhesion, durability, optical properties, etc., it is more and more widely used in Current components and various optical products.


Advantages of EVA film


  1. Good transparency and strong adhesion can firmly bond the glass and silicon wafers on the photovoltaic power generation board together.
  2. It has good durability and can resist high temperatures, humidity and ultraviolet rays, etc., which can significantly improve the service life of photovoltaic panels.
  3.  The EVA film is non-sticky at room temperature and is easy to cut. After hot pressing, thermal cross-linking curing and bonding enhancement reactions occur, resulting in a permanent adhesive seal.



Extruder Type Co-extrusion GWS160+GWS160 Co-extrusion GWS180+GWS160 Co-extrusion GWS180+GWS180
Raw material EVA, POE
Layers EVA, POE, EVA/POE/EVA three layers(EPE)
Net width 2200mm-2600mm
Thickness range 0.2mm-1mm
Max linear speed 15m/min-18m/min
Application EVA、POE、EPE film for solar encapsulation


EVA solar film extrusion line application

EVA Solar Cell Encapsulation Film Line


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 Liu:Email:cindy@gwell.cn  Whatsapp/phone:+86 15906228639

Lucy Lu:   Email:zl@gwell.cn      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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