GWELL, as China Plastic Extruder Supplier, PP PS Sheet Extrusion Line is commonly used as single extruder single-layer sheet extrusion line and double-extruder co-extrusion three-layer sheet extrusion line. There is also a multi-extruder co-extrusion multi-layer extrusion line that can process up to 7-9 layers of composite sheets, such as a high-barrier EVOH multi-layer co-extrusion line.
In the current market, the PP PS sheet extrusion line is mainly based on single-screw models, and the equipment cost is much lower than that of twin-screw models. China Plastic Extruder manufacturer- GWELL, a single-screw model of PP PS Sheet Extrusion Line, stable feeding under various formulas, and good plasticizing properties of raw materials, which not only ensures the toughness of the sheet but also avoids the later thermoforming of the sheet. Cracked, uneven color.
China PP PS sheet extrusion line twin-screw model, although the cost is higher, other aspects are excellent compared to single-screw. With the twin screw, the design flexibility of its thread structure is more flexible, which ensures the feeding of the extruder, and at the same time makes the formula material have better dispersion in the barrel, and the sheet will be more uniform.
PP/PS sheet extrusion line is common for single-extruder single-layer sheet extrusion line and double-extruder co-extrusion three-layer sheet extrusion line. There is also a multi-extruder co-extrusion multi-layer extrusion line, which can process 7-9 layers of the composite sheet at most, such as a high-barrier EVOH multi-layer co-extrusion extrusion line. This type of extrusion line can process PP, PS, PE, and other polyolefin materials.
PP sheet is made of PP (polypropylene) resin through extrusion, calendering, trimming and other processes.
PP sheet has the characteristics of lightweight, bright and stable surface, good heat resistance, high mechanical strength, excellent chemical stability, electrical insulation and non-toxicity. After thermoforming, it can be made into drinking cups, food boxes and other daily necessities.
PS (polystyrene) sheet is a new type of environmentally friendly packaging material developed in recent years. With its excellent thermoforming performance, good protection performance, environmental protection performance and hygienic performance, it is widely used in blister packaging of medicine, food, toys, electronics and clothing.
Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Cooling bracket —– Haul-off—- Winder
Multi-extruder co-extrusion technology is adopted to produce multi-layer co-extrusion composite PP and PS sheets, such as ABA, ABCBA, ABCDCBA, and other multi-layer structure, which is widely used in heat forming, printing, hardware packaging, electronic tray, flocking, food, clothing, tools, toys, stationery pieces, decorative pieces and so on.
There are two kinds of PP/PS single-screw extrusion line venting or not.
One of the keys that finished sheet crystal point has or not is moisture content. Extrusion line with venting+drying, venting or both not, Moisture content ranking will be venting+drying<venting<both not.
Choose which type of single-screw extrusion line, which the important point is the raw material moisture. China Gwell needs customer requirements, finished product net width、thickness、output capacity, etc and conditions, used raw material、factory condition, so that design for our customers.
Twin-screw extruder is more suitable for kinds of raw material, no matter what the form of materials. So if customers doesn’t make sure the type of the raw material or later want to change different types of the PP/PS raw material.
We will introduce the twin-screw PP/PS sheet extrusion line. And moreover, China Gwell
GWELL as China Plastic Extruder manufacturer designed the twin-screw extruder that has the advantages of lower power and high capacity. It can improve the profit for customers.
Mono extruded to make a single-layer PP/PS sheet, this is a simple and normal PP/PS sheet. Gwell will provide the specification according to the used raw material.
Co-extruded to make a Three-layer pet sheet or multi-layer PP/PS sheet, like the three-layer sheet, which is composed of PP/PS+CaCo3+PP/PS. It can decrease the cost but also environmental. Multi-layer like PP PS EVOH sheet extrusion line, this kind of machine for high barrier packaging.like Jelly, cheese, medical packing, etc.
Whether single-screw or twin-screw PP PS sheet extrusion lines, there are designs for PP and PS production. The length-diameter ratio of the single screw has been lengthened, and the vacuum exhaust has been increased; for the twin-screw model, China Plastic Extruder manufacturer – GWELL has developed and designed a vacuum system suitable for the twin-screw main engine to ensure that the moisture of the material is fully discharged, thereby ensuring the PP PS sheet. performance.
|Type of extrusion line||single screw venting or not PP/PS sheet extrusion line||twin screw venting PP/PS sheet extrusion line|
|Extrusion type||Mono extruded or co-extruded|
|Finished Product||Single layer, double-layer or multi-layer PET sheet|
|Raw material||PP/PS vergin ,flake and crushed material|
|Net width||600mm-1220mm and more|
|Thickness range||0.15mm-2mm and more|
|Capacity||200kg/h-1200kg/h and more|
|Application||Food and fruit packing,Stationery pieces,Printing, hardware packing,electronic tray,flocking,clothing,decorative pieces,high barrier packing and more|
|Type of extrusion line||PP/PS single-extruder extrusion line||PP/PS double-extruder Co-extrusion line||PP/PS multi-extruder co-extrusion multi-layer sheet extrusion line|
|Can produce single layer sheet||Can produce double-layer or three-layer sheet||Can produce multi-layer sheet, which usually has 5 layers, 7 layers or 9 layers|
|Type of extruder||Single screw extruder or parallel twin screw extruder|
|Width of Products||600mm-1220mm|
|Thickness of Products||0.15mm-3mm|
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.
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.
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.