PVDF Film Extrusion Line Features
1. Wide Range of Models, Choose as Needed
GWELL PVDF Film Extrusion Line has three dedicated models: GWS75/GWS90/GWS120, which are respectively suitable for production of cast film, solar backsheet film, and thick silicon acid wash plate. They precisely meet the needs of different specialized fields.
2. Control Specifications, High Precision
All three models can strictly control the size accuracy: GWS75/90 produce films of 25-30 microns and 1250mm wide, GWS120 produce thick plates of 1-10 microns and 1250mm wide, and all specifications fully meet the high-precision application standards.
3. High Efficiency, Sufficient Production Capacity
The equipment operates quickly and has excellent production capacity: GWS75 runs at 20 meters/minute with a production capacity of 120kg/hour, GWS90 runs at 30 meters/minute with a production capacity of 180kg/hour, and GWS120 can produce up to 350kg/hour for thick plates, which can support large-scale production.
4. Customization, Meet Requirements
Each model has been specially optimized: GWS75/90 focus on improving the uniformity of the film, suitable for production of cast film and backsheet film; GWS120 optimizes rigidity and processing performance, meeting the requirements of thick silicon acid wash plates.
PVDF Film Extrusion Line Process Flows
Extruder—Screen changer—Melt pump—T-die—Calender—Thickness Scanner—Cooling Bracket—Cutting Knife—Haul-off—Winder
1. Extruder
The extruder of GWELL is equipped with a Siemens PLC system. It operates very smoothly and features closed-loop control and a first-level speed increase function. The screw is specially optimized and combines resin expertise, rheological principles, and simulation technology. This enables PVDF to fully melt, achieve uniform color, and produce high output. Moreover, this machine is specifically designed for precise processing of PVDF, featuring corrosion resistance, wear resistance, high output, low energy consumption, and extremely strong plasticizing capacity.
2. Die
This mold from GWELL was designed by integrating industry experience, the properties of PVDF resin, rheological principles, and multiple simulation technologies. It also underwent customized optimization of PVDF through an exclusive simulation system, enabling precise control of thickness tolerance. The mold is equipped with a fully automatic film thickness measuring instrument, which can finely adjust the thickness deviation of the melt within the mold width, ensuring the uniformity of PVDF film thickness to be accurately within ±1 filaments.
3. Casting Roller
GWELL’s casting roller adopts an internal flow channel design. The temperature control is precise to ±1℃, and the roller surface accuracy can reach ±1. The dual high-precision control ensures a more accurate thickness of the PVDF extruded film.
4. Tension Control System
The tension control system of GWELL is equipped with tension sensors and an exclusive controller from Italy Re, which can precisely adjust positive and negative tensions. It is also equipped with a complete set of servo motors and controllers, making the operation accuracy of the PVDF film extrusion production line even higher.
5. WSD-III Winder
The modular WSD-III winding machine by GWELL is designed to be compatible with domestic plastic extruders. It can handle various materials and features a 3/6-inch air expansion shaft that can be easily replaced. It also has a pre-acceleration function, which can reduce tension fluctuations. The equipment comes with automatic film cutting, rewinding, unloading, and metering functions. The cone tension can be precisely controlled within 5-200 Newton-meters. The system automatically tracks the film surface tension for positioning, ensuring a higher film flatness. This not only reduces the manual operation intensity and material waste, but also improves production efficiency and operational safety.
Product Features
1. Superior Material Performance
The PVDF film is made through the extrusion and stretching process, inheriting the core advantages of PVDF: wear resistance, corrosion resistance, anti-aging, good thermal stability, low smoke and flame retardancy, resistance to ultraviolet rays, nuclear radiation, impact resistance, strong weather resistance, high strength and toughness, and resistance to mold.
2. Excellent Chemical & Structural Stability
The PVDF film is a fluorinated copolymer, similar to polyvinyl fluoride in properties. Its chemical bonds and structural stability are stronger than those of other polymers. It is not affected by atmospheric pollutants or highly corrosive solvents, and can protect metal plates from rusting and prevent the decoration surface from fading and becoming brittle.
3. Good Weather Resistance & Wide Temperature Adaptability
The molecular structure of the PVDF film remains stable under ultraviolet light, and it will not be acceleratedly aged by sunlight. It can withstand repeated temperature changes. It can withstand temperatures ranging from -70°C to +110°C, and is suitable for outdoor environments all over the world.
4. High Processing Accuracy, Verified by the Market
GWELL has provided batch-produced PVDF solar backsheet films for domestic enterprises. The thickness is uniform and the precision is high. After market testing, it can replace DuPont Tedlar’s PVF film, with almost no performance difference.
Parameter (Please consult sales engineers for details)
Extruder Type | one single screw extruder | two single screw extruder coextrusion |
product structure | single layer | single, double or three layers |
Net width | 1250-2200mm | |
Thickness range | 0.02-0.03mm | |
Capacity | 120-180kg/h | 140-200kg/h |
line speed | 30m/min | |
Application
1. PVDF Ultrafiltration Membrane Extrusion Line: This type of membrane is mainly used in water treatment, sewage purification, and the ultrafiltration process in food processing;
2. PVDF Anti Corrosion Film Extrusion Line: This type of film is mainly used in the protection of chemical equipment and pipelines, as well as in anti-corrosion scenarios in marine engineering;
3. PVDF Battery Separator Extrusion Line: This type of film is mainly used in the production of separators for fuel cells and lithium-ion polymer batteries;
4. PVDF Solar Backsheet Film Extrusion Line: This type of film is used on the backside of solar panels. Its main function is to protect the batteries. The key feature is its resistance to aging and wear;
5. PVDF Outdoor Decoration Film Extrusion Line: This type of film is mainly used for protecting the glass, exterior walls, doors and windows of outdoor buildings, as well as outdoor billboards. The core feature is its resistance to aging and wear;
6. PVDF Piezoelectric Film Extrusion Line: This film has remarkable advantages, featuring a wide frequency response range, a large dynamic range, high electromechanical conversion sensitivity, sufficient mechanical strength, and easy matching of acoustic impedance.
About Us
GWELL was established in 2010 and is a national high-tech enterprise specialized in making polymer flat forming equipment. It has over 20 years of experience in the plastic extrusion industry. GWELL has over 100 R&D personnel at present. Relying on strong manufacturing capabilities and talent people, GWELL achieves 100% independent designing and manufacturing of key components, and its annual production capacity reaches over 2,000 production lines.
There are more than 300 sets of advanced processing equipment. The single piece lifting capacity of workshop is up to 32 tons. We can produce heavy-duty extrusion equipment with a width of more than 8 meters and has an annual output of more than 2,000 sets of flat forming equipment for various types of plates, sheets, and films. Production capacity of the PET Sheet Extrusion Line can reach 1 ton per hour, and the PP sheet material production capacity can reach 900 kilograms per hour.
GWELL delivered more than 5,000 sets of flat forming equipment to the global customers. RENEWABLE RESOURCES, CSIQ, HIUV, LUSHAN and SVECK are all loyal partners of GWELL. Annual sales volume has been more than 1 billion yuan in making polymer flat forming equipment for three years and products are sold in more than 60 countries and regions around the world, including Russia, Spain, Turkey, Iran, South Korea, Indonesia, India, Japan, Germany and South America.
Certifications:
CE Certificate
Certificate No.: M.2020.103.UY1236
Certificate No.: MD-17-272-1
Patent Certificate
Certificate Name: Panel Cutting Machine with Debris Recycling Mechanism
Certificate No.: ZL 2022 2 2718667.8
Certificate Name: A Tension Adjustment Device for Plastic Film Production
Certificate No.: ZL 2024 2 3236677.3
Certificate Name: Standard-length Cutting Equipment for PET Sheet Extrusion Line
Certificate No.: ZL 2021 2 1379038.6
FAQ
1. How Many Branch Company In GWELL GROUP?
GWELL extrusion machinery has 4 production bases: Suzhou / Yancheng / Nantong / Nanjing Total 4 branch company.
2. About Our Delivery Time?
Usually it takes about 90 days depends on different machinery upon receipt of order advance payment.
3. How long is the warranty period?
The normal warranty period of GWELL's production line is one year.
