PETG film extrusion line

As China Plastic Extruder manufacturer, China GWELL’s PETG film extrusion line adopts multi-machine co-extrusion technology to produce multi-layer co-extruded composite PET sheets such as APET/PETG, PETG/APET/PETG, APET/RPET/APET, etc. Plastic blister, printing, hardware bags, gift folding boxes, etc.

Description

China GWELL as China Plastic Extruder Supplier, PETG film extrusion line adopts multi-machine co-extrusion technology to produce multi-layer co-extruded composite PET sheets such as APET/PETG, PETG/APET/PETG, APET PETG CPET Sheet Extrusion Line, etc., which are widely used in blister suction Plastic, printing, hardware bags, gift folding boxes, etc.

  • Equipped with the precision distributor, the layer is uniform, and the proportion of each layer is adjustable for digital display.
  • Inclined horizontal tablet structure makes operation and maintenance more convenient.
  • The roller is driven independently, the linear speed is synchronized with the extruder speed, closed-loop control, and full servo system.
  • PETG film extrusion line is controlled by Siemens PLC to realize the automatic control of parameter setting, data operation, feedback, alarm, and other functions.
  • The operation procedure and control system are independently written by Gwell.

 

PETG film extrusion line Process Flows

PETG film extrusion line Process Flows

Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Thickness Scanner —-Cooling Bracket —-Cutting Knife —- Haul-off —-Winder

 

PETG film produced from PETG sheets is a new type of high-tech building decoration material. Its high-quality characteristics completely solve many defects in the process of traditional materials in the process of processing and use, and can better reflect energy conservation, environmental protection, innovation and guidance. A low-carbon living environment is a truly green and environmentally friendly product. The products produced by China GWELL are now widely used in developed countries such as Europe, the United States, Japan and South Korea, and lead the fashion trend of the international architectural decoration industry, and are favored by professional designers and consumers.

 

petg film extrusion line 4

PETG film Extrusion Line process

  • Raw material conveying: compressed air or roots fan is used to pneumatic conveying to the designated silo.
  • Silo: Store raw material slices and enter the weightless metering device through the raw material’s gravity.
  • Weightlessness measurement: Weightlessness scale is used to measure and feed to achieve accurate control of unloading quantity and ensure stable uniformity of feeding of PETG film Extrusion Line.
  • Feeding: Screw feeding is adopted to ensure uniform and continuous feeding.
  • Metal detection separator: Detects and separates metal impurities in raw material slices and recycled materials to ensure the purity of raw materials.
  • Extrusion: A vacuum exhaust twin-screw extruder is adopted to help reduce the degradation of melt raw materials and the generation of bubbles; the temperature range is 240-285℃.
  • Coarse-filter: Disc filter is adopted to increase the filtration area of PETG film extrusion line and reduce replacement frequency, improve production efficiency, the filter aperture is larger than the fine filter.
  • Melt metering pump: The double gear metering pump is adopted to achieve proper melt extrusion amount and ensure uniform melt flow and pressure stability.
  • Fine filtration: using disc filter to increase filtration area, reduce replacement frequency, improve production efficiency, and filter aperture 25-40um.
  • Static mixing (adapter): China GWELL PETG film extrusion line is multi-layer co-extrusion, which makes the melt mix more uniform and flow into the die more stably.
  • Die: Using thermal expansion bolts to automatically or manually adjust the T-die lip clearance through the thickness gauge feedback information, can get better PET-G thick sheet with uniform thickness, and the die temperature is 260-285℃.

pe wrap film extrusion line gwell

  • Electrostatic adsorption: Using steel strip type electrostatic adsorption tape, the casting sheet flowing out of the die by high voltage electrostatic is flat and tightly adsorbed on the surface of the hand drum, and by increasing the exhaust above the dice, to reduce the condensation of volatiles and oligomers in the melt around the die.
  • Casting: The process of cooling the cold drum through the temperature control unit, the temperature is 25-30℃, the melt flows out through the melt pipe through the die lip under the pressure of the metering pump, and then cooled by the rotating cold drum to form a solid sheet.
  • Infrared thickness gauge: infrared thickness measuring system equipment is used to measure and control the thickness of the thick sheet.
  • Auxiliary winding: the cast sheet from the die, hard drum, after thickness gauge detection, judged to be wrong (uneven thickness, edge serpentine, bubbles, impurities, holes, surface protrusions, surface particles or oligomers, unmelted particles, surface drawing, etc.), crushing and re-granulating after auxiliary winding.
  • China GWELL petg film extrusion line Longitudinal stretching: preheating, stretching, shaping and cooling four sections, each section is distributed with a different number of rollers, roller driven by inverter motor, can control and adjust the longitudinal tensile ratio according to the production process, roller temperature is heated or cooled through the temperature control unit, different sections set different temperatures according to the production process, longitudinal stretch ratio: 1.05-3.0 times, temperature range: preheating, stretching, stereotyped 70- 90℃; cooling 30-50℃.
  • Infrared heating: one or two sets of infrared heating pipes are used to control the heating of thick sheets up, down or left and right, the heating device is installed in the stretching section, and the cooling system is attached.
  • Transverse stretching: divided into four sections: preheating, stretching, shaping and cooling; each team has different temperatures, 75-100℃, tensile ratio 3-4.5 times trimming: remove thick edges and waste edges that are not stretched and unevenly stretched.
  • Corona treatment: increase film surface tension to facilitate the printing of PETG film extrusion line products and subsequent film finishing
  • Rewinding: Trimmed and a winder rolls corona treated film into a large, wide and large diameter master roll.
  • Aging treatment: The process of placing the large mother roll on the steel core bracket of the mother coil and eliminating the stress in the film after 24 hours of static aging.
  • slitting: Through the unwinding machine, the large width and large diameter master roll are cut into small film rolls of the width and length required by the order, convenient for transportation and subsequent printing processing.
  • Packaging: Weigh and label the small film role, pack it into the packing carton, affix the certificate of conformity, put it on the pallet, wrap the film for sealing and other operations.

 

petg film extrusion line 2

PETG film Extrusion Line Features

 

  1. The unique cross-flow channel and thin-wall design of the PETG sheet machine, the temperature and flow rate of the cooling water are controlled by PLC to keep the temperature of the roll surface uniform, and the temperature difference of the roll surface is controlled by 1°C. Inside, the cooling effect is better and the product quality is more stable, because it solves the problems of the rollers designed in the past, and can increase the output:
  2. The opening of the die lip is automatically controlled and adjusted by the thickness gauge according to the feedback signal of the film uniformity. The die head is divided into several different heating zones. The unique heating control technology can control the die head more effectively and accurately. temperature in each zone. Multi-layer co-extrusion automatic flat die head, with thickness gauge feedback adjustment, to ensure the thickness uniformity of the film and decorative film, the product thickness error is within ±3%;
  3. The PETG sheet machine is equipped with high-precision tension measuring rollers and winding tension floating rollers to achieve high-sensitivity and high-precision control of tension control and ensure the internal and external consistency of winding tension. The intuitive man-machine interface can be set, modified, programmed and fine-tuned at any time, which is very convenient. The winding diameter can reach 1200mm, which reduces the number of roll changes, saves space for finished products, reduces the workload of workers, and improves work efficiency.
  4. China PETG sheet machine edge material recycling system, high-efficiency crushing and air supply pipeline system, cyclone separation dust removal device and central forced crushing feeding system, save raw material costs for customers, and the finished product rate reaches 95%

 

PETG film Extrusion Line product features

  1. Environmental affinity: non-toxic, pollution-free, recyclable and degradable, is an excellent green and environmentally friendly material;
  2. Variety of China PETG Film Extrusion Line: There are many kinds of colors and patterns, which perfectly reflect nature, elegance and fashion;
  3. Chemical stability: no cracking, no discoloration, not easy to fold, no whitening when bending, good toughness;
  4. Durability of protection: wear resistance, scratch resistance, moisture resistance, corrosion resistance, high and low-temperature resistance, easy decontamination, etc., to achieve the effect of protection as new and long service life;
  5.  Barrier tightness: the gas permeability is almost zero, which can effectively block toxic gases (such as formaldehyde, benzene, dioxins, etc.) released by various adhesives, coatings, adhesives and other materials;
  6.  Excellent flame retardancy: after special flame retardant treatment, excellent fire resistance performance, entirely in line with the international fire protection standards in the industry;
  7. High efficiency and energy saving: The PETG film extrusion line is easy to operate and effectively solves the difficult problems of energy waste and environmental pollution caused by traditional processes (electroplating, painting, etc.).

 

Uses: Mainly used to decorate the surface of building materials such as panels, metal, glass, aluminum profiles, etc., widely used in high-grade furniture, home appliances, cabinets, wardrobes, doors, ceilings, interior, and exterior wall decoration, elevator envelopes and other industries.

Parameter

 Extruder Type GWS120+GWS65 GWS150+GWS65 GWP85+GWP52 GWP95+GWP65
Film layers Single layer or Three layers (A/B/A)
Raw material PETG, APET, RPET
Net width 600-1500mm 800-1500mm 800-1500mm 1000-1500mm
Thickness range 0.05-0.75mm
Capacity 400-500kg/h 550-650kg/h 500-750kg/h 800-1000kg/h

Application

GWELL’s product use as China Plastic Extruder Supplier: it is mainly used to decorate the surface of building forest materials such as plate, metal, glass and aluminum profiles. It is widely used in furniture, household appliances, cabinets, wardrobe, doors, hanging items, indoor and outdoor wall decoration, elevator car body and other industries.

petg film extrusion line 1

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.

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FAQ

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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