EVA/POE solar film extrusion line EVA compounding extruder High-output with automatic control

EVA/POE solar film extrusion line

An EVA/POE film extrusion line is a specialized industrial system designed to produce continuous sheets of EVA film by melting and forming EVA resin through extrusion. EVA films are widely used in applications such as photovoltaic (PV) encapsulation, packaging, agriculture, footwear, and laminates due to their flexibility, transparency, impact resistance, and excellent heat-sealing properties.

Key Components of the Extrusion Line

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• 1, Raw Material Handling System

Stores and feeds EVA pellets (often blended with additives like crosslinking agents, antioxidants, or fillers) into the extrusion process.

May include dryers to remove moisture from the pellets, ensuring product quality.

• 2, Extruder

The core component where EVA pellets are melted and homogenized at controlled temperatures (typically 150–220°C).

Equipped with a screw conveyor to transport and melt the material, and a heating/cooling system to maintain optimal melt viscosity.

• 3, Screen changer

The screen changer is used to filter out foreign particles and impurities when the plasticized material flows through the filter screen. When a common screen changer is filtering, there will be dead corners. When it is restarted for the second time and extruded from the mold, crystal point lines will appear. Therefore, the belt-type screen changer is our best choice.

• 4, Melt Pump

A gear pump that stabilizes the flow of molten EVA to the die, ensuring uniform pressure and thickness in the film.

• 5, T-die

Shapes the molten EVA into a flat, continuous film by forcing the melt through a rectangular slot.

Adjustable lips allow customization of film width and thickness (ranging from microns to millimeters).

• 6, Cooling System

Chill Rollers/Calender: Rapidly cools the molten film to solidify it, improving surface smoothness and dimensional stability.

Air Knife/Quench Tank: Optional for specific applications, providing additional cooling or surface treatment.

• 7, Edge Trimming & Recycle System

Cuts excess material from the film edges and recycles trimmings back into the extrusion process for efficiency.

• 8, Thickness Scanner

The thickness scanner can be used to measure the thickness of the cast film online and output it in the form of an electrical signal. During the process of cooperating with the automatic mold, this electrical signal is sent to the display and the automatic thickness control system to achieve the automatic thickness control of the film.

• 9, hual-off Unit

Uses powered rollers to pull the film at a controlled speed, ensuring consistent tension and preventing stretching or sagging.

• 10, Winding System

Rolls the finished film onto cores in neat, tension-controlled rolls, ready for storage or further processing.

• 11,Control Panel & Automation

Integrates PLC (Programmable Logic Controller) or computer systems to monitor and adjust parameters like temperature, speed, and pressure in real time, ensuring precision and consistency.

Working Process

Material Preparation: EVA pellets and additives are mixed and dried to remove moisture.

Extrusion: The mixture is fed into the extruder, where it melts and forms a homogeneous melt.

Die Extrusion: The melt is forced through the die head to form a flat film.

Cooling & Solidification: The film is cooled on chill rollers or via air/liquid quenching to set its structure.

Traction & Trimming: The film is pulled by rollers, trimmed to the desired width, and excess material is recycled.

Winding: The finished film is wound into rolls, with quality checks (thickness, surface defects, tension) performed during the process.

Technical Parameters:

Applications:

• Solar Energy

Photovoltaic module encapsulation (UL 1703 certified)

Anti-PID performance for long-term stability (>25 years)

• Building & Construction

High-transparency glass curtain walls (≥92% visible light transmission)

Functional shed films with UV resistance (3000+ hours, ASTM G154)

• Automotive & Transportation

Lightweight laminated safety glass (EN 14449 compliant)

Heat-reflective windshields with haze <1.5%

• Advanced Materials

Low-temperature sealing films for electronics packaging

Reactive hot-melt adhesives with adjustable open time (30s-5min)

• Key Advantages:

​Dual functionality: Combines EVA's flexibility (Shore A 80-95) with POE's impact resistance (-40℃ LTBR)

Process adaptability: Compatible with extrusion lamination (120-160℃) and roll-to-roll coating

Sustainability: 30% recycled content option available (GRS 4.0 certified)

Pre-after sale service:

• Free process audit and ROI analysis for your specific production goals
• Virtual factory tour with AR-powered equipment simulation
• Customized material testing (EVA/POE compatibility validation)
• Assign 1-2 technicians to customer place for instructing installation and testing work.

Packing and Shipping:

• The Eva Solar Film Extrusion Line will be securely packaged in a wooden crate to ensure safe transportation.
• All fragile components and parts will be wrapped in bubble wrap or foam to prevent damage during shipping.
• The crate will be labeled with the product name, dimensions, and weight for easy identification.
• The Eva Solar Film Extrusion Line will be shipped via sea freight to the nearest port to the customer's location.
• The customer will be responsible for arranging inland transportation and customs clearance.
• Shipping and handling fees will be calculated based on the customer's location and will be added to the final invoice.

FAQ:

• Is Gwell Machinery a Manufacturer?

Yes, we own 3 manufacturing bases and 1 sales center in Shanghai , Taicang City Suzhou, Chonchuan District Nantong, and Dafeng District Yancheng. After more than ten years of rapid development and growth, Gwell becomes one of the biggest manufactures of polymer material flat forming extrusion equipment with 180 000 square meters & more than 500 employees.

• How long is the delivery date?

Usually it takes about 3months

• How can I order and make payments?

Once clear your requirements and determined extrusion line is ideal for you. We will send technical solutions and Proforma Invoice to you. You can pay via TT bank transfer, LC as you like.

• What is your Minimum Order Quantity?

One. We provide both customized extrusion lines and technical solutions. Welcome contact with us for technical innovation or improvements for your future purchasing plan.

• What is your production capacity?

We produce more than 200 advanced extrusion lines every year world wide.

CHINA GWELL is a high-tech enterprise dedicated to manufacturing plastic extrusion lines for Film, Sheet, and Profile. The company has two production bases in scenic Taicang of Suzhou and Dafeng of Yancheng, which are very close to Shanghai. The two bases cover more than 56,000 square meters and can produce more than 200 extrusion lines. Relying on the powerful technology and equipment of the group and its orators in spirit, Gwell commits to developing high-tech products and the international market. "Expertise creates customers' values" has always been the company's operating philosophy.

In recent years, the company's products have been not only chosen by consumers within the domestic front, but also selected by clients worldwide. Our customers in Russia, Spain, Turkey, Iran, Egypt, Bulgaria, Brazil, Indonesia, India, and Brazil have already been enjoying the convenience and values brought by Gwell machines.

Gwell has a mature team of entrepreneurial management, product design, and technology development. Not only covering manufacturing, commissioning, operation, after-sale service, and technical training, but Gwell is also capable of providing customers with integrated and individual consultancy, and attempts to provide all aspects of high-efficiency, high-quality service, such as feasibility study, layout design, and discussing, just to boost the growth of its clients.

·Company vision: Innovation promotes the company's progress
·Customer vision: Expertise creates customer's values
·Employees vision: Creation realizes staff's values
·Product vision: Technology reflects products' values