PP Hollow Board Extrusion Line

GWELL, as China Plastic Extruder Supplier, PP Hollow Board Extrusion Line adopts PP hollow special single-screw extruder and double extruder for co-extrusion. Because PP hollow board is divided into white and black PP hollow board. Sometimes the middle of the board will be white. So China GWELL will use two extruders.


PP Hollow Board Extrusion Line Description


China GWELL as a manufacturer of extruders, its PP Hollow Board Extrusion Line solar panel is made of high-performance engineering plastic – polycarbonate resin, with high transparency, light weight, impact resistance, sound insulation, insulation It is a kind of high-tech, extremely good comprehensive performance, energy-saving and environmentally friendly plastic sheet with characteristics of heat, flame retardancy and anti-aging. It is a plastic building material commonly used in foreign markets. It is used in the lighting ceiling and sunshade canopy of commerce, factories, stadiums, agricultural greenhouses, aquaculture and flower greenhouses, as well as public facilities such as telephone booths, newsstands, stations, highway sound insulation, and advertising decoration.

pp hollow board extrusion line 4

Among the packaging boxes of various materials, the PP hollow board extrusion line of PP hollow board extrusion line is a kind of box with high popularity. It makes everyone very satisfied with its appearance and function. Good hollow board packaging box, also known as PP plastic turnover box, is made of environmentally friendly raw materials such as PP polypropylene. It has no peculiar smell and has a long service life. Corrosion, wear resistance, compression resistance, vibration resistance, UV resistance, thermal insulation, sound insulation effect.

China GWELL is not only a professional manufacturer, but also a professional supplier of plastic extruder and plastic molding machine. The main product is plastic extruder or plastic molding machine, our advantage is that we can provide you raw material for PP hollow board at competitive price without any extra cost.

PP hollow board extrusion line hollow board is generally made of polypropylene (PP), polyethylene (HDPE) resin and various accessories. In addition, there is a polycarbonate (PC) hollow board, also known as sunshine board, glass capron Board and PC hollow board are processed from engineering plastic PC resin, with high transparency, light weight, impact resistance, sound insulation, heat insulation, etc.


PP Hollow Board Extrusion Line Process Flows

pp hollow board

Extruder —- Screen changer —– Melt pump —– T-die —— Vacuum Setting Table—– Haul-off —-Cutter —-Conveyor —- Stacker

Features of PP Hollow Board Extrusion Line


  1. The unique design of the mold, setting plate, cooling system and vacuum system ensures high-speed extrusion molding, good wear resistance, good shapeability, and easier operation.
  2. Through the design of the two-stage combined tractor, the flatness of the product can be effectively controlled, and the unqualified products produced by each startup can be reduced.
  3. The special cutting design can reduce the burrs on the end face of the product to a certain extent. For the improved sawtooth of PP raw materials, the sawdust will not stick during cutting. The automatic fixed-length function of the product is convenient for personnel to operate and has high cutting accuracy.
  4. China GWELL as a supplier of extruders The whole line adopts new process technology, the production line speed is fast, and the extruder adopts energy-saving and high-efficiency extruder, which has high extrusion volume, good plasticization and stable conveying.


Hollow board features


  • Light weight, anti-stretch and other properties.
  • The surface can be printed or pasted with lamination.
  • Different colors can be produced according to demand.
  • By adding flame retardant, the produced hollow board can be extinguished immediately after fire.
  • PP hollow board extrusion line has high efficiency.
  • Production flexibility (the thickness and width of the plate can be controlled, for example, the same mold or machine can be used to produce 2-6mm thick plates)
  • PP hollow board extrusion line reliability and stability.
  • Strong adaptability to different raw materials, and the production cost is reduced by more than 30%.
  • Diversity of finished product size and shape.

pp hollow board extrusion line 8

GWELL PP hollow board extrusion line Feature

1. Extruder

As a China Plastic Extruder manufacturer, Gwell uses a PP hollow special single-screw extruder, and uses a twin-extruder for co-extrusion. Because the PP hollow board is divided into white and black PP hollow board extrusion lines, sometimes white appears in the middle of the board. So China Gwell will use two extruders.

2. T-die

The structure of the template is changed from the original O-shaped hollow structure to the m-shaped, V-shaped, N-shaped, well-shaped, and finally fixed to the well-shaped.So Gwell recommends customers choose a well-shaped T-die.

3. Vacuum Setting Table  

China Gwell is committed to the setting unit. Vacuum Setting Table has not only a cooling function but also a better forming function.

4. Cooling part

Adopt Gwell’s special cooling rollers and stress-relieving cooling beds to make the board run smoothly and fully shaped.

5. Automatic operation

The whole line adopts PLC automatic control to realize the operation of the man-machine interface. It is easy and automatic to operate.

6. PP hollow board extrusion line screen changer

A hydraulic quick screen changer is used to make the screen changing process fast and effective. Double station, special sealing structure, to ensure the stable operation of the screen changer. PP hollow packaging board equipment manufacturer’s hollow lattice board production line PP hollow packaging board equipment production line.

7. Tractor

The efficient PP hollow board extrusion line has two sets of tractors. The group tractor has high power, high reduction ratio, multi-roller type, good low-speed rotation performance and large tractive force, which can uniformly pull the board out of the vacuum setting table at the same time. The second set of tractors is used to destress the product. In addition, it is equipped with edge trimming equipment to guarantee the useful width and edge quality of the board.

8. Stress relief equipment

The large area conduction heating mode of the advanced PP PC PE Hollow Sheet Extrusion Line can effectively eliminate the board stress and further improve the flatness of the board.

9. Electric control of the whole line

advanced can realize the consistent control of all parameters of the whole line by using a microcomputer (PLC), so as to effectively optimize the operation characteristics of the whole production line. GWELL as China Plastic Extruder Supplier.

10. Extrusion die

High-quality alloy extrusion die lip and choke rod provide uniform pressure drop from die inlet to die lip. Precision machined molds ensure good quality of finished extruded sheets.

11. Vacuum calibration table

The thermal convection system of the calibration bench has a cross arrangement to ensure that the hot PC resin stream is effectively cooled and the final extrudate reaches the desired shape and exact dimensions. As far as the forming process is concerned, our multi-layer sheet extrusion machines can rapidly form by setting and cooling without the need for cold water. It helps save energy and improve efficiency.

12. Dry Vacuum Calibrator

The vacuum calibrator consists of 2 independent subsystems equipped with many closed-loop vacuum channels.

pp hollow board extrusion line 7

Advantages of the PP hollow board

  1. Good water resistance. Even if it is completely immersed in water for several days, it will not be deformed by moisture. Acid and alkali resistance, corrosion resistance, no decay, no rust, especially suitable for basement projects, highway and railway bridge piers, and other humid environments.
  2. Cement is not easy to stick to it. After the formwork is constructed, it is easy to demould. Will not be deformed due to cement adhesion
  3. The surface of the plastic template is smooth, and there is no need to brush the release agent, which reduces the cost of cleaning and maintenance. The surface of the construction building is smooth and flat, and no secondary modification is required.
  4. Lightweight, high efficiency, easy to open and dismantle the mold, low labor intensity of the handling operation, and high construction efficiency.
  5. High support strength, not easy to deform, impact resistance and wear resistance.
  6. Low cost. The service life is long, and the number of cycles used can reach more than 100 times. In addition, the used waste boards and leftover materials can be recycled and reused, saving costs and reducing pollution. The comprehensive use cost can be saved by more than 30% compared with traditional wooden formwork.
  7. Long life and many times of repeated use. The finally damaged plastic template can still be crushed again and reprocessed into a new template, saving resources and meeting the requirements of the “green industry”.
  8. Good thermal insulation is beneficial to shorten the construction period.
  9. The method of combining with wood can be used for various treatments, and welding can also be carried out, so secondary processing can be carried out flexibly on the construction site.


PP hollow board extrusion line PP main components


  1. Single screw extruder
  2. Hydraulic quick change filter
  3. Mould
  4. Calibration table
  5. The first traction device
  6. Oven
  7. Cooling Station
  8. Second traction unit
  9. Cutting unit
  10. Automatic control cabinet
  11. Stack table
  12. Screw Loader


pp hollow board extrusion line 3
One of the key features of the PP hollow board extrusion line is its efficiency. It is equipped with an advanced production system that ensures fast and seamless production, enhancing productivity and reducing production time. Additionally, the machine is designed to minimize waste, which translates into lower production costs and increased profitability for clients.

it is also designed with versatility in mind. It can handle a wide range of materials, including PP, making it an ideal option for clients looking to produce a variety of products. The machine is also built to cater to various production capacities, with options ranging from small-scale to large-scale production.

Another significant advantage of the PP hollow board extrusion line is its exceptional quality. It produces PP hollow boards that meet international standards for impact resistance, heat insulation, and other critical parameters. This makes it an ideal option for clients looking to produce high-quality boards that offer superior protection against external factors.

The PP hollow board extrusion line is also designed with user-friendliness in mind. It comes equipped with an intuitive control system that makes it easy to operate, even for those with minimal technical expertise. The machine is also designed to be low maintenance, with minimal requirements for upkeep, which further reduces costs for clients.

In addition to its impressive performance and reliability, the PP hollow board extrusion line is also designed with safety in mind. It comes equipped with various safety features, including an emergency stop button, automatic shutdown function, and overload protection system, which help to prevent accidents and ensure the safety of operators.

The PP hollow board extrusion line is also environmentally friendly, making it an ideal option for clients looking to reduce their carbon footprint. It uses less energy than traditional extrusion lines, thereby reducing the amount of energy required to produce PP hollow boards. Additionally, the machine is designed to minimize waste, reducing the amount of material that ends up in landfills.

Overall, the PP hollow board extrusion line is a top-of-the-line product that delivers exceptional performance, reliability, and user-friendliness. With its advanced technology, versatility, and ease of use, it is an ideal option for those in the packaging industry looking to produce high-quality PP hollow boards that meet the specific needs of their clients while minimizing their impact on the environment.

pp hollow board extrusion line 1



Co-extrusion GWS120+GWS75,GWS150+GWS90
1830mm 915/1220mm
Advertising,Transportation,Construction template,Portable partition.

With years of experience in manufacturing plastic hollow sheet extruder production lines in China, China GWELL will provide you with high-quality services and high-quality after-sales services including technical support, technical inspection and training, so that you can rest assured that with our professional capabilities, With the quality performance of GWELL manufacturers, it will definitely bring satisfactory results!


  1. Hollow board: PP hollow board extrusion line products mainly replace the ideal materials such as corrugated cardboard, wood board and metal plate.
  2. Turnover boxes: spare parts turnover boxes, food turnover boxes, beverage turnover boxes, pesticide packaging boxes, inner packaging of precision instruments, pads, partitions and transportation storage turnover boxes for electronic components packaging.
  3. Industrial boards: outer packaging protection of various items, pads, racks, partitions, bottom plates, cross plates, etc.
  4. Electronic industry packaging: Conductive packaging products are mainly used in the packaging of electronic parts, the purpose is to avoid contact with other charged items, causing spark damage to parts due to electric friction. In addition, there are conductive and antistatic plastic plates, turnover boxes and so on.
  5. Advertising decoration: display boards, commodity identification boards, billboards, light boxes, window shapes, etc.
  6. Household use: temporary partitions of residences, wall panels, ceiling panels, container covers, etc.
  7. Others: PP hollow board extrusion line products are used for backboards of washing machines, automobiles, water heaters, baby carriages, etc., packing, storage and transportation pads, etc. PP plastic hollow board is a new type of packaging material, which is produced by PP pelletized material and extruded at high temperature.


pp hollow board extrusion line 6


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.

Related Product


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.

request a quote