Your Professional Sheet Extrusion Line Supplier
Jwell, a vice president unit of the China Plastics Machinery Industry Association, is a leading manufacturer specializing in plastic extrusion equipment and complete sets of chemical fiber spinning machinery. The company's main product lines include: various types of cast film, sheet, and board production lines; different kinds of plastic pipe and profile production lines; blowing molding machines; chemical fiber spinning equipment; as well as plastic recycling and compounding granulation systems. Additionally, Jwell supplies key accessories such as screw barrels, extrusion flat die heads, screen changers, and rollers.
Strong Manufacturing Capabilities
The company comprises 26 specialized subsidiaries, nine large-scale metal processing plants, and three heat treatment and nitriding facilities.
Independent Intellectual Property Rights
Jwell has established an independent intellectual property system and holds nearly 400 authorized patents.
Professional and Experienced Team
Our dedicated team collaborates with clients to identify personnel, resources, and process documentation necessary to support maintenance operations effectively.
High Production Capacity and Global Reach
Jwell produces approximately 3,000 sets of extrusion lines annually, which are exported to over 120 countries worldwide.
Parameter
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Model |
Multi layer |
Single layer |
Highly-efficient |
|
Extruder specification |
JW120/65-1000 |
JW120-1000 |
JW150-1500 |
|
Thickness of the product |
0.20-1.5mm |
0.2-1.5mm |
0.2-1.5mm |
|
Main motor power |
132kw/45kw |
132kw |
200kw |
|
Max extrusion capacity |
600-700kg/h |
550-650kg/h |
800-1000kg/h |
|
Note: The specifications are subject to change without prior notice. |
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Video
Types of Sheet Extrusion Line
The sheet extrusion lines produced by our company mainly include the following types:
PC/PMMA Sheet Extrusion Line
PC/PMMA sheet extrusion line is a production system that uses heat and pressure to create sheets of polycarbonate (PC) and polymethyl methacrylate (PMMA) (also known as acrylic). This process involves melting the plastic pellets and shaping them into a continuous sheet using a die, followed by cooling and winding.
HDPE/LDPE Waterproof Extra-Width Geomembrane Extrusion Line
An HDPE/LDPE waterproof extra-width geomembrane extrusion line is a specialized manufacturing system used to produce large, wide sheets of polyethylene (PE) material, specifically HDPE (high-density polyethylene) and LDPE (low-density polyethylene), designed for waterproofing applications.
PE/ABS/PP/PS Sheet Extrusion Line
A PE/ABS/PP/PS sheet extrusion line is a manufacturing process that uses extrusion to produce plastic sheets from polyethylene (PE), acrylonitrile butadiene styrene (ABS), polypropylene (PP), and polystyrene (PS). This process involves melting the plastic pellets and forcing them through a die to create a continuous sheet of the desired thickness and width.
Advantages of Sheet Extrusion Line
● Modularity of equipment’s benefits in reduction of spare parts cost
● High output for the class of extruder size
● Exceptional thickness tolerance can be achieved
● Better optical properties
● Ease of change over from Monolayer to Multilayer sheet configurations
● Accurate layer thickness control
● Improved sheet quality by reduction of residence time
● Suitability to use various polymers
● Melt pump for controlled and consistent melt input to the Flat Die
● Efficient torque transfer to extruder
● Energy efficient
Applications of Sheet Extrusion Line
Packaging
Sheets are extensively used in the packaging industry, where they are used to create products like trays, boxes, blister packs, and food containers. Their transparency, ease of molding, and rigidity make them ideal for these purposes.
Signage and Display
The clarity and colorability of sheets make them an excellent choice for signage and display applications. They are used to manufacture promotional signs, advertising displays, and retail point-of-sale materials.
Food Service
Polystyrene is commonly used to produce containers and trays for the foodservice industry. Its low cost, ease of use, and safety for food contact make it a go-to material for disposable items like cutlery, plates, and food trays.
Automotive Industry
Plastic sheets are also used in the automotive industry for interior components, trim pieces, and other structural applications that require a balance of strength and impact resistance.
Medical and Pharmaceutical
Sheets are used in medical and pharmaceutical applications, including trays for medical instruments and packaging for pharmaceuticals, due to their cleanliness, rigidity, and ease of sterilization.
Preparatory Steps Before Starting The Sheet Extrusion Line
Pre-dry the pellets of the extruded profile and further dry if necessary.
Check whether the components, water, and air systems are in a standard, safe and reliable state. The parts that need lubrication should have sufficient lubricating oil. The running part should regularly fille with lubricating oil. The entire extrusion and shaping system should initially align. Lock the position after the extruded product is normal.
Preheat the head, body, and screw to the temperature required by the process. Simultaneously, open the cooling jacket at the bottom of the hopper and pass in cold water. After the extruder head reaches a specific temperature, heat the body.
The machine needs to be kept at a constant temperature for some time before starting up because the temperature indicated by the temperature control instrument of the sheet extruder is ahead of the actual temperature. Suppose the temperature is not kept for a sufficient time. In that case, the material will not be preheated enough. The material flow’s viscosity will be too high, and the Axial screw overload can damage equipment and even personal safety.
When each component reaches the specified temperature, the machine head part’s connecting bolts should tighten. Simultaneously, it is hot, and the connection status should check to ensure that no material leakage occurs during operation.
Check the feeding hopper and the remaining material. There must be no foreign matter, especially metal and other hard debris, to not damage the extrusion screw or hopper.
Before starting the machine, replace it with a clean filter, check whether the machine head meets the product variety and size requirements and whether the parts of the machine head are clean.
Clean the operation site, keep the main engine and auxiliary equipment and the operation table clean, and place the raw materials, products, and tools in an orderly manner.
After each part of the whole machine reaches the predetermined temperature and is consistent with the thermometer test, it will be stable for 0.5-1h, and then start the trial run.
Start each operating equipment and check whether it is operating normally.
Operation Precautions of Sheet Extrusion Line
It is not allowed to run idle for a long time after starting up, not to scratch the screw or barrel.
Ensure that the raw materials are clean and strictly prevent metal debris or other complex parts such as screws from falling into the feeding port and damaging the screw and barrel.
When feeding, it is necessary to ensure continuous feeding. For this reason, there must be sufficient materials in the feeding hopper. If continuous feeding cannot ensure, the machine must shut down immediately. It is strictly forbidden to run empty without materials.
After the new extruder starts to run for several hours, it should re-grow into the V-belt to avoid slipping.
During continuous long-term operation of the machine, check the lubrication and temperature rise of each part on time, pay attention to the equipment’s operation at all times, and stop and check immediately if there is any abnormality.
If the production power is interrupted, the main drive and heating will stop. When the power supply is restored, each section of the barrel must be heated to the set temperature for some time before starting.
When it is difficult to eject the screw after processing, a screw-type screw separator can be used instead of hammering to avoid damage to the screw.
After the extruder is used for 500 hours, there will be iron filings or other impurities in the gearbox’s oil. Clean the gears and replace the lubricating oil in the gearbox. In the future, the lubricating oil must replace according to the specified time in the manual. In general, check the wear of gears, bearings, and seals of the reduction gearbox once a year, and replace severely worn parts in time.
Packaging and Shipping
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Packaging |
Plastic film wrapped, wooden pallet |
|
Shipping |
Shipping by sea, by air, by express are acceptable. According to your requirements. |
Our Factory
Asia's largest and fastest growing professional plastic machinery equipment manufacturer , Jwell Machinery Co., LTD., founded in 1997. until now, Jwell factory covers more than 700,000 square meters and has 8 production bases and 26 professional extrusion companies in the world. They are located in Shanghai, Zhejiang provinces, Jiangsu provinces, Guangdong Province and Thailand.
Certificate
FAQ
As one of the most professional sheet extrusion line manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy sheet extrusion line made in China here from our factory. Contact us for quotation.
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