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Extruder Machine

 
Why Choose Us
 
01/

Our factory
Dalian YISEN international trade CO., LTD established in 2013, located in china Dalian XiGang District, is a professional machinery enterprise.

02/

Competitive Price
We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.

03/

Advanced Equipment
Mixing equipment: internal mixer, kneader mixer, open mill, twin screw extruding sheeting machinery, rubber sheeting machinery, rubber refiner machinery, rubber cracker machinery.

04/

Online order tracking
You can track the progress of your order online using our tracking system. You will have access to tracking information, so you know exactly where your package is and when it will be delivered to your doorstep.

 

What Is Extruder Machine

 

To understand what an extruder is, we must first know what the process of extrusion is. Extrusion is when a material, usually pellets, dry powder, rubber, plastic, metal bar stock or even food is heated and pushed through a die. A die is essentially a mold that shapes the material as it is forced through the small opening to the other side. It's one of the most common ways to produce sheets and strips of stock metal, plastic and rubber shapes.An extruder is simply the machine used to complete the extrusion process. Using a system of barrels and cylinders, the machine heats up the product and propels it through the die to create the desired shape.

 

Benefits of Extruder Machine
 

Efficiency
Extrusion is an efficient method for mass-producing uniform, high-quality plastic products. The continuous process allows for high-volume production without sacrificing consistency.

 

Versatility
The extrusion process can create a wide variety of shapes and sizes, accommodating everything from simple tubes to intricate profiles. This versatility makes it a go-to method in the diverse world of plastic production.

 

Material Conservation
Extrusion reduces material waste, as excess plastic can be recycled back into the process. This results in cost savings and contributes to environmentally responsible manufacturing.

 

Strength and Durability
Extruded plastic products often exhibit enhanced strength and durability due to the continuous nature of the extrusion process and the potential for adding fillers or reinforcements.

 

Cost-Efficiency
Due to its high volume and continuous nature, plastic extrusion is a cost-effective method of production. Unit costs decrease with higher production volumes, making it an economical choice for large-scale manufacturing.

 

Types of Extruder Machine
 

Single screw extruder
The single screw extruder is the basic model and works by feeding plastic material (granules, flakes, or powder) from a hopper into the extruder barrel. The material is gradually melted by a single screw and an agitated mixture produced by heaters designed along the feed tube. The molten plastic polymer is then extruded from the die to produce the plastic polymer in the desired finished appearance shape.

 

Co-rotating twin screw extruder
The plasticizing capacity of the twin-screw extruder is better and faster. Granular material stays in the extruder longer than a single-screw extruder, slowing down production time. So that plastics, additives, and fillers can be fully and evenly dispersed, stirred, compressed, and kneaded, and higher quality composite materials can be obtained.

 

Counter-rotating twin screw extruder
Counter-rotating twin-screw extruders generally use two screws of the same size but opposite screw directions. To strengthen the mixing effect, the screw adopts the structure of different thread head numbers, variable pitches, and mixing chambers. Compared with the co-rotating twin-screw extruder, the shearing is softer, the conveying capacity is strong, and the decompression capacity is strong.

 

Blown film extruder
The blown film extruder machine line is a device that heats and melts plastic particles and blows them into films. Film blowing machines can be divided into many types according to the application materials, such as PE, POF, PVC, and so on.

 

Application of Extruder Machine
 

Building and Construction

Extruded plastic components, including PVC piping, window frames, and insulating wires, are widely used in the construction industry. Their durability and resistance to weather conditions make them ideal for these applications.

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Automotive

The automotive industry utilizes extruded plastics in the production of various parts, such as bumpers, dashboards, and interior trim components. The inherent flexibility of extruded plastics allows for the creation of complex shapes and designs.

Packaging

Plastic extrusion plays a critical role in the packaging industry, creating thin film for food packaging, bottles, and containers. These products are lightweight, durable, and can be designed to protect against external influences such as UV light or oxygen.

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Medical

Extruder Machine is vital in the medical field for applications such as catheters, IV lines, and other medical devices. These products require high precision and sterility, which can be achieved through the extrusion process.

 

Customizable Features Of Extrusion Machines

 

 

Screw Design
The screw is a crucial component of the extruder, responsible for feeding, melting, and pumping the material. The screw design can be altered in terms of its length-to-diameter ratio, flight depth, and thread pitch, among other parameters, to suit the properties of the material being extruded.

Die Design
The die shapes the extruded material into the desired profile. Its design, including the size and shape of the opening, can be tailored to produce a wide range of product forms.

Heating and Cooling Systems
The temperature control systems of an extruder can be configured to maintain the optimal conditions for a particular extrusion process. This includes the number and location of heating bands and cooling fans and the type of temperature control mechanism used.

Feeding System
The feeding mechanism of an extruder, which can range from simple gravity-fed hoppers to more complex volumetric or gravimetric feeders, can be customized to ensure consistent, uninterrupted material supply.

Drive Motors
The power and speed of the extruder’s motor can be adjusted to achieve the desired output rate and pressure. Variable speed drives allow for precise control of screw speed, impacting the quality of the final product.

 

How to Choose Extruder Machine
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Single & Twin Screw Extruders
First you must determine what type of pipe you want to produce. For standard HDPE and PPR pipe there are single screw extruders and twin screw extruders for PVC pipe.The reason PVC piping requires a Double or Twin Screw Extruder is to ensure that the PVC powder is properly mixed. Since PVC powder is a rough material a second screw is required to mix it without damaging the extruder. On the other hand, for PE pipe production a Single Screw Extruder is up to task.

 

Ease of use & integration
A plastics extruder machine most often operates as part of a series of downstream connected machines. Therefore, the integration options offered by an extruder are of critical importance to the extruder operation, as part of your production line.

 

High quality construction, components & parts
A very important thing to look for when selecting a plastics extruder machine, is whether it uses quality components from industry leading manufacturers such as; Siemens, Omron, and ABB. This is always a plus over locally sourced, no-name brand or outdated components.Using quality components ensures that spare parts are available allowing for easy servicing and guaranteed high performance.

 

Extruder screw, barrel & gearbox
The most important parts of a plastic pipe extruder machine are the screw, barrel and gearbox, which are the components who work the hardest or have the largest product contact and are subjected to extreme thermal as well as mechanical wear and tear.

 

Process of Extruder Machine

 

Material Preparation
In extrusion, you have the option to use a multitude of polymers. However, materials processing is complicated and requires picking the right material to get to a product that is suitable for selling. You will need a polymer resin, also known as a polymer carrier, for your production. Depending on your desired product, you might consider adding a pigment, among other optional additives like UV absorbers, anti-fracture processing aids, antioxidants, or PET chain extenders.

 

Extruder Setup
Mounting the extruder machine involves careful installation and precise calibration to ensure proper alignment.The next step is installing the appropriate extrusion die or tooling, a task that plays a pivotal role in determining the final product’s shape and size.Consideration of screw design is essential, particularly focusing on the cylindrical design of the barrel. This aspect significantly influences accuracy of your material dispersion and contributes to achieving the desired product specifications.

 

Dosing
Dosing is all about accurately measuring and controlling the precise amount of additives, colorants, or other components to be mixed with the base plastic material.Manufacturers use dosing equipment or systems to introduce these additional substances into the extruder in a controlled manner.Want to know more about how we help plastic manufacturers in extrusion dose materials accurately? Visit our website!

 

Melting
Feeding the plastic material into the extruder barrel using a screw mechanism. Applying heat and mechanical energy to melt plastic creates a homogenous molten mass. Melt extrusion is melting polymer pellets by applying heat and friction through the extruder’s barrel.The molten polymer is then pushed through a tiny hole or, more often, a “shower head” of holes called a spinneret. As the molten polymer stream moves away from the spinneret, it hardens into a solid fiber. This fiber is pulled and heated repeatedly as it moves along the extrusion line to the end product.

 

Shaping and Cooling
After the plastic is hot enough to come out of the die, the heat must be removed without distorting product dimensions. There are three primary coolants — water, air, and a cooled metal surface, such as a roll. Heat-transfer fluids are used where temperatures above 100°C are required, as inside some rolls for sheet lines.

 

How to Maintain Extruder Machine
 

Check machine alignment and gearbox timing
It is critical for a twin screw extruder to have the rotating parts perfectly aligned — motor/gearbox/screw-shaft assembly/barrel assembly — in order to avoid problems generated by misalignment, causing extra wear or worse problems such as undue stress on shafts. The manufacturer properly aligns new extruders prior to start-up, but this may drift over years of production.

 

Conduct regular wear monitoring/measurement
An extruder wears. That's life. This wear does not happen overnight; a well-maintained extruder typically wears slowly and consistently over time. So, once your machine is mechanically in good shape, it is key to document how the wear pattern of the screws and barrels develops over time by making regular measurements of the screw element diameters and barrel bore diameters. First, this will help the processor order replacement parts in advance and anticipate the maintenance needed. Second, it is a way to monitor whether the wear is suddenly different from a usual situation, highlighting something potentially going astray.

 

Make sure you have the right startup and shutdown procedures
The best extruder with the best metallurgy must still be operated properly; two critical moments are startup and shutdown. It needs to be done rapidly but softly to prevent, for instance, running the machine at full speed without any product in it. For each recipe, a specific startup and shutdown can be set. Avoid lengthy operation of the screws with the extruder empty or with just water in the barrel. It is necessary to run the screws very briefly with the barrel empty or with only water during startup and shutdown of the extruder; to minimize wear this operation must be kept brief and should be done with the screw speed as low as possible.

 

Train, train and re-train
People change, get promoted or decide the grass is greener elsewhere, so it is important to have a training program for new hires. However, after training people typically remember a fraction of what has been taught. Therefore, there is a constant need to train and re-train equipment operators and the maintenance team. Through training and proximity, you can establish the best proactive processes and procedures to keep your extrusion platform in best operating shape.

 

 
Our Factory

 

Dalian YISEN international trade CO., LTD established in 2013, located in china Dalian XiGang District, is a professional machinery enterprise. Many famous professional manufacturers to establish a long-term relation of cooperation with large tire company, cable companies, rubber recycling companies, Waste tire processing in foreign and so on.Mixing equipment: internal mixer, kneader mixer, open mill, twin screw extruding sheeting machinery, rubber sheeting machinery, rubber refiner machinery, rubber cracker machinery.Calender equipment: Two-roll, Three-roll, Four-roll calender machinery.Extruding equipment: Pin-barrel cold feed extrude, cold feed extrude, hot feed extrude, rubber strainer machinery.

 

 

 
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FAQ

 

Q: What is an extruder machine?

A: Extruder machines press solid and viscous media through a die. Metal and plastic can be formed in an extrusion process. Continuous inkjet printers and laser marking machines can apply alphanumeric text and codes on a variety of extruded products including wire, cable and pipe.

Q: What is extruder machine used in food industry?

A: The extruder is typically a large, rotating screw tightly fitting within a stationary barrel, at the end of which is the die. Extrusion enables mass production of food via a continuous, efficient system that ensures uniformity of the final product.Extrusion is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of the desired cross-section.

Q: What is an extruder job?

A: What Is an Extrusion Machine Operator? An extrusion machine operator works in a factory, overseeing the production of rods, hoses, and other tubular shapes out of thermoplastic materials for manufacturing or construction.Examples of extrusion include pasta, pipes, window panes, gears, many snack foods, aluminum cans, railings, shower stalls, and windshield wipers.

Q: What is the principle of extrusion?

A: The principle of extrusion is the process of forcing a material through a die or nozzle to produce a specific shape or cross-sectional profile. This is done by applying pressure to the material, typically using a screw or ram, which pushes it through the die or nozzle.

Q: How to start an extruder?

A: The startup, select and press the "prepare to start up" button, then connect the "start-up" button, then slowly rotate the screw speed adjusting knob, the screw speed starts slowly. Then gradually speed up, while adding a small amount of material.

Q: What is the principle of food extruder?

A: The extruder's rotating screw forces the extrudate toward the die, through which it then passes. The amount of time the extrudate is in the extruder is the residence time. The extruded product usually puffs and changes texture as it is extruded because of the reduction of forces and release of moisture and heat.

Q: What industries use extruders?

A: Plastic extrusions are widely used in the construction industry for applications such as window and door frames, siding and cladding, roofing components, trim and molding, decking, fencing, and drainage systems.

Q: What is the working principle of extruder machine?

A: The working principle of sheet extruder machine is to convert solid plastic into uniform melt by pressure and shear, and then send it to the next process. The production of melt involves additives such as color masterbatch, resin blending, and re-pulverization.

Q: What is the purpose of an extruder?

A: It's one of the most common ways to produce sheets and strips of stock metal, plastic and rubber shapes. An extruder is simply the machine used to complete the extrusion process. Using a system of barrels and cylinders, the machine heats up the product and propels it through the die to create the desired shape.

Q: What is the process of extruder?

A: What Is the Extrusion Process? The extrusion process involves the application of heat and pressure to force the material, usually in a molten or semi-solid state, through a specifically designed opening—a die shape—with the desired cross-sectional profile.

Q: What are the common problems in extrusion process?

A: The common defects in extrusion process are: Improper System Engineering/Installation, Improper Operation, Resin Defects, Improper Materials Addition, Surging, Poor mixing, Melt toughness or fracture, Overheating, Moisture release, Trapped air, Contamination. Wrong Clamps used or Clamps too tight.

Q: What are the basics of extrusion machine?

A: The extruder motor turns the gears in the gearbox, which is coupled to the extruder screw. Once the extruder reaches operating temperatures, the screw turns and brings the plastic pellets supplied by the hopper into the barrel. The pellets are conveyed forward by the pushing action of the screw flight.

Q: What is extruder machine used for?

A: Extruders are used to produce long continuous products such as tubing, tire treads, and wire coverings. They are also used to produce various profiles that can later be cut to length. Multiroll calenders are used to make wide sheeting.

Q: What is the working process of extruder?

A: The working principle of the extruder is: using a screw with a specific shape to rotate in the heated barrel, the plastic sent from the hopper is extruded forward, so that the plastic is uniformly plasticized (that is, melted), through the head and different shapes.

Q: How do food manufacturers use extrusions?

A: Finally, the mixture of soft ingredients is forced through a die which is specifically designed to shape the product as desired and then cut it into a predetermined size. Examples of foods that are extruded include: Pasta. Cereal.

Q: What is the role of extruder?

A: Now, the extruder is considered a high-temperature short-time bioreactor that transforms a variety of raw ingredients into modified intermediate and finished food and feed products. During extrusion cooking, temperatures can be as high as 200 C, but the residence time is usually 15-20 seconds.

Q: What temp should extruder be?

A: The faster the plastic is being pulled through the extruder, the higher the extrusion temperature needs to be to melt it quickly enough. We use a temperature of 220°C for ABS and PLA at speeds of 40 mm/s and lower, and 230°C at speeds up to about 100 mm/s.

Q: What is the pressure in the extruder machine?

A: The pressure inside the extruder barrel during the extrusion process is high. Barrels for most extruders are designed to withstand operating pressures up to 10,000 psi or 700 bar. Normal operating pressures generally range between 1,000 and 5,000 psi. or 70 and 350 bar. Too much pressure could rupture a barrel.

Q: What is the rpm of an extruder machine?

A: In most extruders it is somewhere around 100 rpm. One exception to this is the twin-screw extruder used for rigid PVC pipe and profiles, and lately for PET sheet and other resins, as well. These screws run more slowly—30 rpm is high!

Q: What is the process of extruder machine?

A: An extrusion machine is a device which pushes or pulls material such as molten plastic through a shaped die. This forms a continuous length of product and cross section. This extrusion process is used to produce many products including plastic tubing, plastic sheets, and many other products.

We're professional extruder machine manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to buy or wholesale customized extruder machine made in China here from our factory. Contact us for quotation.

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