EPE Solar Film Extrusion Line
Before the emergence of the EVA / POE / EPE solar film extrusion line, customers mainly needed EVA solar film and Poe solar film extrusion line. However, with the instability of the market, more and more customers want to have a device that has both EVA performance and POE performance and can reduce the cost of raw materials. Therefore, GWELL as China Plastic Extruder Supplier, GWELL developed the global first EPE solar film extrusion line according to customer needs. Since then, EPE extrusion line has become popular all over the world.
Key words：Sheet Extrusion Line
Category：
EVA POE solar film extrusion line
Description
Development of Gwell’s EPE(EVA/POE/EVA) solar film extrusion line
Before the appearance of the EPE Solar Film Extrusion Line and EVA POE Solar Film Extrusion Line, customers mainly needed EVA solar film and Poe solar film extrusion line. However, with the instability of the market, more and more customers want to have a device that combines EVA performance and POE performance and can reduce the cost of raw materials. As a result, Gwell and its customers developed the world’s first EPE solar film extrusion line. Since then, the EPE extrusion production line has swept the world.
EPE solar film extrusion line Process Flows
Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Thickness Scanner —-Cooling Bracket —-Cuttting Knife —- Haul-off —-Winder
Features of Gwell’s EPE(EVA/POE/EVA) solar film extrusion line
- Film Layers structure: According to the finished film, EVA/POE/EVA film has three layers(EPE film). It will be based on the customer requirements, EPE solar film extrusion line can also produce EVA or POE single layer.
- China EVA / POE / EPE solar film is used for solar cell encapsulation. After lamination and curing, it is bonded and sealed. It plays the role of high light transmittance, preventing water vapor penetration, high and low-temperature resistance, and ultraviolet light resistance to ensure the stable and efficient use of battery modules. It is a durable and reliable packaging material. The EVA / POE / EPE packaging film extrusion line of Gwell machinery is in a leading position in the world.
Advantages of the Gwell EPE(EVA/POE/EVA) solar film extrusion line
- EPE solar film extrusion production line currently has a global market share of 90%, including China, the United States, India, Turkey, Sri Lanka, etc.
- If EPE film is produced, the speed can reach 12m/min-15m/min, if it is EVA, it can reach 15-18m/min, and if it is POE, it can reach 10-13m/min.
- Cooling parts to ensure shrinkage rate is less than 3%.
- GWELL special winder to ensure micro-tension, and achieve automatic winding and cutting.
Comparison of the Gwell EPE(EVA/POE/EVA) solar film and EVA solar film and POE solar film
- Transparent EVA solar film: with high light transmittance, it is used for bonding glass and cells; The raw materials are EVA resin and various modifiers, which are cheaper.
- White EVA solar film: compared with transparent EVA solar film, the pretreatment of white fillers such as titanium dioxide is added. It has a strong barrier, low light transmittance, and high reflectivity, which can improve the power generation of components. It has strong resistance to damp-heat aging and ultraviolet aging and can inhibit the aging and cracking of the back sheet.
- Poe solar film: Poe solar film has a higher water vapor barrier rate and stronger anti-PID performance so the module can be used for a long time. It is the main packaging adhesive film of a double-sided double glass module and film module at present.
- EPE(EVA/POE/EVA)solar film: It has both the anti-PID performance of POE and lamination efficiency of EVA solar film and reduces the use of POE particles to achieve cost reduction and efficiency increase. At present, it is mainly used in high-efficiency components.
From the perspective of the production process, the main process flow of transparent EVA film, white EVA film, and POE film includes batching, mixing, extrusion, shaping, slitting, and packaging. The process is roughly the same, the extrusion line is basically compatible, and can be converted to each other through technology transformation. When it comes to the production process, the first step is batching. This involves carefully measuring and combining the necessary raw materials in the correct proportions. Once the materials are batched, they move on to the mixing stage. Here, the materials are thoroughly blended together to ensure a uniform composition. The next stage in the process is extrusion. During extrusion, the mixed materials are heated and forced through a die to create a continuous film. This film is then shaped into the desired form, whether it be transparent EVA film, white EVA film, or POE film. After shaping, the film is slit into the appropriate width and length. This is an important step in ensuring that the final product meets the specifications required by customers. Finally, the film is packaged and prepared for distribution. Overall, while there may be slight variations in the production process for transparent EVA film, white EVA film, and POE film, the core steps remain the same. The extrusion line is versatile and can be easily adapted to produce different types of film through technology transformation. This flexibility allows manufacturers to efficiently switch between products and meet the diverse needs of their customers.
The future of the EVA/POE/EPE solar film market
The expansion of EPE solar film extrusion lines in the market is primarily driven by the increasing photovoltaic installed capacity in China and globally. As the cost of photovoltaic energy continues to decrease, the transition to photovoltaic power generation is expected to expedite, gradually replacing conventional fossil fuel-based energy generation methods in the context of carbon neutrality.
The promising policy landscape and the thriving global photovoltaic sector are becoming increasingly prominent. Projections indicate a substantial surge in the new installed capacity of photovoltaic systems worldwide over the next decade. It is anticipated that between 2021 and 2025, the average annual increase in new installed capacity of photovoltaics globally will reach 234GW. Looking ahead to the period between 2026 and 2030, clean energy sources are poised to meet nearly all of the new power demands, with the average annual new installed capacity of photovoltaic systems expected to soar to 280GW.
Parameter
| 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 | ||
Application
EPE solar film extrusion line application
Because of EPE(EVA/POE/EVA) film superior adhesion,durability and optical characteristicas,which is maily used for
- crystalline silicon and solar module encapsulation for PV.
- dressing in the field.
- optical products.
EVA glass laminated film is widely used in
Deep processing of safety flat laminated glass, arc laminated glass, process laminated glass, bulletproof glass, color changing laminated glass, conductive smart glass, solar cell and other special glass.
EVA hot melt adhesive casting film and embossing film are widely used in
Sanitary products: medical surgical clothes, baby diaper film, women’s sanitary napkin bottom film, adult diaper film, pet pad film, disposable bed sheets, etc.
Daily necessities: umbrella, raincoat, suit coat, all kinds of tablecloth, shower cap, shower curtain, apron, chair cover, etc.
Packaging supplies: dust cover for computer and electrical appliances, soft packaging for cosmetics, shopping bags, gift bags, file bags, etc.
Client
About Gwell
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.
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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.
Contact information
Service supervision
Tel: +86-13615235273
WhatsApp: +86-13615235273
Email: salee@gwell.cn
Address: No. 8 Huyue East Road, Longchi Street, Liuhe District, Nanjing, Jiangsu Province，China
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