Plastic Machinery

Something You Need To Know About Injection Moulding Machine?

Injection moulding is the most common method used to create large numbers of identical items from plastics. Most polymers can be used in the process and products produced by injection moulding include bottle lids, plastic combs, small pieces of furniture and even car door panels. Essentially, the injection moulding process involves feeding plastic polymers in a pelletized form through a hopper into a chamber.


As the material passes along the chamber a rotating screw mixes and melts the material. Once sufficient molten plastic material has collected at the end of the chamber the screw acts as a plunger and the material is injected into a mould, usually made of metal. Moulds are carefully designed to reflect the exact requirements of the product being produced. Finally, the plastic solidifies into a shape that has conformed to the shape of the mould. Once cooled slightly, sometimes a robotic arm is used to remove the moulded components but it is more common for the freshly-made items to drop out of the mould into a chute leading to a collection container.


An injection moulding machine is used to manufacture plastic products by the injection moulding process detailed above. There are two main parts to the machines – the injection unit and the clamping unit. In the majority of injection moulding machines the mould is fastened in the horizontal position but moulds can also be fitted in the vertical position in some cases allowing gravity to aid the process. Moulds are most commonly fastened to the machine by manual clamps using bolts but can also be fastened using hydraulic or magnetic clamps which both allow for faster tool changes.


Injection moulding machines are rated by tonnage and Shot weight which expresses the amount of clamping force that the machine can exert to keep the mould closed during the process and the maximum weight of article that can be moulded. However, machines are primarily classified by the type of driving systems they use namely hydraulic, mechanical, and electrical or hybrid. Hydraulic machines are most predominant in most parts of the world with the exception of Japan and were the only option available until 1983. Although widely-used they tend not to be as precise as other machine types. Mechanical injection moulding machines tend to be more reliable than other types.


Electric injection moulding machines decrease operating costs by reducing energy consumption and also address some of the environmental concerns around these machines. They are more expensive than other types but are quieter, faster and more accurate. Hybrid machines combine the best of hydraulic and electric types but in reality use almost the same amount of electricity to operate as a standard hydraulic machine.


There are many manufacturers/suppliers of injection moulding machines and new advances are being made in the field all the time and so it is worth researching options and services on offer before making a final decision.


Multiplas Enginery Co., Ltd. is the company of specializing in producing injection moulding machine, rubber moulding machine, high speed injection molding machine and so on machinery. Learn more information about injection moulding machines, please feel free to contact with Multiplas.



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Plastic Recycling Process and Plastic Recycling Machinery

Thermal depolymerization, polymer plastic. The use of the plastic is increasing now a day like water is coming in the plastic bottle and the colas are also coming in the plastic bottles. Both of the different types of drink use in a huge amount by the people and it is not only using in some countries but the usage of the plastic bottle is in huge amount in each and every country. After drinking the material from the bottle most the people throw it in the bin as they consider the empty plastic bottle as the waste.


The recycling of every type of the plastic is necessary because the plastic which is empty and which has no use in the world and pollute the environment in one and the other way. If the empty plastic bottle will not recycled and it if burn then by the plastic the carbon will evolved in the air which pollute the environment and is also dangerous for the human being living near the area in which this type of activity is going on. The plastic recycling can save the environment and it also effect on the consumption and making the new plastics.


It is also not necessarily important that if the bottle of the plastic is recycled then after the process the recycled plastic will not use in making the same type of the commodity again. Once the plastic is recycled the is melted it can be used in making the different commodities like the plastic of the pet bottle is recycled then the chair of the plastic can be made through that re cycled plastic. Recycling is important because it also affect the cleanliness of the city. Especially the recycling of the pet plastic bottle is more important as the pet bottles after consumed is throw in the waste and is seen in the third world countries that the bottle made of the plastic can be found on the ground.


One of the challenge faced in recycling of the plastic is that as compare to the glass the recycling of the plastic need long process and so it require the time and the plastic recycling machinery rather that it is the fact that after the recycling of the plastic it is more useful than the glass or any other thing with which the same things can made. The structure of the plastic bottles are very intense type of the structure as it is made up of the polymer plastic so that the heating is not enough to melt the plastic it need more process than simple heating the bottle in the machine like one again the example of the glass is consider.


As there are many type of the plastic so that before the plastic goes in the recycling it should be categories. The plastic is categories on the level of the polymer used in making the plastic. The process in recycling is monomer recycling then thermal depolymerization and last step is heat compression.


Song Ming Machinery Industries Co., Ltd. is the pre-eminent plastic recycling machinery manufacturer and also provides waste plastic recycling plant, granulator, shredder, high speed mixer, vertical cooling blender, PVC compounding line, EVA, TPR, PVC, rubber & masterbatch pelletizing plant, PET bottles washing, crushing, & separating system and others.


In order to supply the best recycling machinery to the valuable customers, Song Ming strains every nerve to constantly upgrade the designs, products and knowledge of plastic recycling machine. They are proud of their superior standard of recycling machinery that keeps them being one of the leading companies in the recycling machine industry. Please feel free to ask them any further information or send your requirements to them.



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Outstanding PVC Shrink Film Machine Manufacturer – Jumbo Steel

Welcome to the professional manufacturer of PVC heat shrink film machines – Jumbo, providing high quality shrink film machines, and also having good reputation with high quality and high efficiency products and the best services. Furthermore, we have strong R&D team to keep improving our heat shrinkable film making machines to meet the highest standard of our clients. JS 336 model PVC shrink film machine is one of the high quality products that Jumbo takes pride in. Having a simple introduction about JS 336 model below:


JS 336 PVC Shrinkable Film Production Equipment
JS 336 PVC Shrink Film Machine

Screw Dia.: 55mm

Lay Flat Width: 200-700 mm

Output: 30-60 kg/hr.


PVC Shrink film offer many excellent benefits, such as glossiness, high transparency, durability, water resistance and easy control of shrinkage. They have been applied to a wide variety of product packaging, such as foodstuff, beverage bottles, sporting goods, etc.


Over 25 years, Jumbo Steel has dedicated itself to the research of production technology for shrink film machine. We have made great improvements in product prescription and machine performance, upgrading the quality and efficiency of PVC shrinkable films. We have a strong background and engineering experience for whole-plant planning and equipment supply. Jumbo Steel PVC shrinkable film production equipment has been sold worldwide, and has earned a reputation for its superior machine and outstanding production know-how.


In addition to supplying the most dependable machinery, we also place emphasis on the technological support and complete production upgrades. This allows our customers to start up or resume production very quickly.


Jumbo Steel has a proven tradition of pursuing excellence and improving the PVC Shrinkable Film industry, and it will continue to develop its engineering capabilities and raise industry standards.


If you need more information about Shrink Film Machine series, welcome to visit the website of Jumbo Steel to learn further details about our products. Any questions you have are also welcomed to contact with us.


Jumbo Steel Machinery Co., Ltd.

No. 4, Road 12, Taichung Industrial Park, Taichung, Taiwan.

Tel: 886-4-23590788(Rep)

Fax: 886-4-23590567



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Taiwan Plastic Bottle Crusher Manufacturing Expert – KOWIN

KOWIN is a machinery manufacturer that designs, manufactures, and exports plastic recycling turn-key plant. Continuously dedicate to the research & development and marketing of various types of plastic recycling machinery for a long period—providing high efficiency recycling machinery and helping customers recycle plastic waste and reproduce into final products.


Today, we are going to simply introduce about KOWIN’s plastic bottle crusher below:


PET Bottle Crusher
PET Bottle Crusher


KOWIN’s plastic bottle crushers with patented rotary blades &fixed blades design. Moreover, it is with a special rotating angle, the blades function as scissor and claw knife. Quick crush, low dust. Another characteristic is able to use the less horsepower for maximum cutting efficiency. Apparently reduce your loss.



  • Heavy-duty construction-noise level is minimized. Power-saving.
  • Material of crusher blade is made in Germany; long blade life.
  • Tangential Feed-the large cutting chamber with the powerful scissor rotor cutter, assures the smoothly operation and efficiency throughout.
  • Feeding hopper remove by hydraulic-safety easy for clean and maintenance.


Technology & Feature

  • The crushing shaft is with high level, carefully, serious & precious treatment; so that it protects the shaft and prolongs its life. Preciseness without tolerance. It makes sure high-efficiency crushing and power-saving.
  • After the welding amount the blade holders, the blade holder is put into the shaft. Long service life. It solves the general problem of breakage due to the blade holder to be directly welded on the shaft in the market.
  • Safety-oriented design with limit switch for protecting the operator. Machine can be operated only when the feeding hopper is closed.
  • Three layers dust guard device for shaft; it extends shaft life.


Would you want to obtain more information about plastic waste recycling machines? If you are interested in or need further details about plastic bottle crusher and waste recycling machine series, welcome to visit the website and feel free to contact KOWIN!


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Plastic Extrusion Line Supplier

Shang Ta Chia is a famed plastic extruder manufacturer in Taiwan since its inception on 1984. We take pride in holding complete lines of extrusion machines including PP/PC hollow profile plastic extruder, PP/PC/PVC corrugated sheet plastic extruder etc. Our engineers and technical staff apply their expertise and skills to develop the latest plastic extruders to go with ever-changing market. Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather stripping, window frames, plastic sheeting, adhesive tape and wire insulation.


Contact us for your plastic extruder’s inquiry!


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Used Plastic Pelletizing Systems: A Purchasing Guide

A plastic extrusion-pelletizing system is equipment that creates plastic pellets and is one of the most important intermediate processes in plastics. There are four main processes: strand pelletizing, underwater, hot ring, and hot cut. The technology has not changed significantly in recent years and used plastic pelletizing equipment offers a high return on investment. The typical life of a new plastic extrusion-pelletizing system from a reputable manufacturer will exceed 20 years if properly cared for and maintained. The most important considerations when buying a new or used plastic extrusion-pelletizing system are cost, quality and delivery time.

How Plastic Pelletizing Systems Work

Plastic extrusion-pelletizing system add raw materials, often powders, to the barrel of an extruder. Inside the barrel, heat and pressure are applied to melt the powders and a rotating screw mixes it together. This creates a uniform and consistent molten product. The molten product is passed through a screen that creates pressure in the extruder barrel, filters impurities, and controls flow to the die. The diameter and shape of the molten plastic is determined by settings on the die. From this point, four different processes can be applied.

Different Plastic Pelletizing Processes Strand Pelletizing

One option to process compound plastic is strand pelletizing. After the extruder process, a strand die creates a series of spaghetti-like strands that are cooled in water. Once cooled, an air stripper removes excess water. The strand pelletizer then cuts the cooled strands. In the case of the strand die, the number of holes is proportional to the size of the extruder. Another consideration is heat source: electric or oil. Electric systems are cleaner and easier to maintain at a constant temperature, however some applications require oil. The most common manufacturer is Extrusion Dies Industries (EDI). It can be difficult to determine the brand of the die without documentation.

Water Bath

Issues to consider when purchasing a used water bath include the length, width, and depth of the submersion chamber. It’s important to ensure the water bath is big enough to hold the strands. The size of the water bath is generally matched to the throughput of the extruder. Construction material is also important with stainless steel the best choice because it doesn’t rust. Other materials include carbon steel and aluminum.

Air Stripper

When purchasing an air stripper, make sure the width of the lips are wide enough to allow the strands to be pulled through and ensure the horsepower is strong enough.

Strand Pelletizing

When purchasing a used strand pelletizing system, ensure the entrance width and strand guide matches the size and number of strands. Examine the type of rotor: either removable blades or solid helical. In both cases, the number and width of the blade on the rotor is important. Make sure the unit has adequate horsepower to spin the rotor to cut pellets. Manufacturers include Conair and Cumberland.


Screens can be round or rectangle. Ensure the size of the screen matches the extruder. Screens with more decks allow greater levels of filtration. Manufacturers of round screens are Sweeco, Midwestern, and Kason. Manufacturers of rectangular screens include Witte and Rotex. Screens need to be sized to match the rate of the extruder.

Underwater Pelletizing

Another option to process compound plastic is underwater pelletizing. In this process, an adapter connects the extruder with or without a screen changer to a system comprised of a die, a cutting system, a water system, and a spin dryer. In this process, molten material is cut into pellets after moving through the die and into a water slurry. Pelletizing takes place underwater. After this, pellets are dried in a spin dryer and sorted according to size by a screen. The underwater pelletizer must be sized so that the flow of water in gallons per minute is appropriate for the production rate of material from the extruder. Each manufacturer has a different calculation. The most common manufacturers are Gala and Farrel.

Water Ring Pelletizing

A third option to process compound plastic is water ring pelletizing. This works in the same way as underwater pelletizing except the pellet is cut when hot and cooled in a ring of water. As the plastic moves through the die, the pelletizer throws the pellets against the wall of the ring with water instantly cooling the hot pellets. The pellets are dried in a spin dryer and sorted by size through a screen. When purchasing water ring pelletizing systems, consider the model, capacity and manufacturer. The most common brands are Beringer, Xaloy, and PTI. It’s common for water ring pelletizing systems to include the die, cutter, water system, spin dryer and water trough.

Hot Cut Pelletizing

The fourth option to process compound plastic is hot cut pelletizing. In this case, pellets are cut when hot and cooled by a blower before being sorted by size through a screen. This process is typically used with PVC pellets. The best-known brand is Cincinnati Milacron.

Used plastic pelletizing systems

When purchasing the used plastic extrusion-pelletizing systems, consider its age, manufacturer, horsepower, type of rotor, and screen holes. The advantages of buying a used plastics pelletizing system includes immediate installation and competitive price. Choose a reputable brand with maintenance records.

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Plastic Recycling Machine Supplier

Song Ming Machinery Industries Co., Ltd. is a professional manufacturer of plastic recycling machines, and it has been in the plastic recycling field for almost two decades. Song Ming is not only reputable for its pelletizing extruders, it also has the best credentials in the plastic recycling peripherals, such as granulators, mixers, ribbon blenders, and knife grinders. Clients’ continuous recognition and confidence in our products not only enriched our product range and also accelerated growth of our company. “Contributing to the World through Recycling plants”, it is our goal. This is made possible by Years of profound experience in plastic recycling field.


In order to supply the best recycling machinery to the valuable customers, Song Ming strains every nerve to constantly upgrade the designs, products and knowledge of plastic recycling machine. They are proud of their superior standard of recycling machinery that keeps them being one of the leading companies in the recycling machine industry. Please feel free to ask them any further information or send your requirements to them.


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PVC Shrink Film Machine


Jumbo Steel Machinery Co., Ltd. established in 1986, is the major manufacturer specializing in PVC shrink film machines! Jumbo has more than 25 years experiences provided PVC shrink film machine, and also having good reputation with high quality and high efficiency products and the best services. Furthermore, we have strong R&D team to keep improving our heat shrinkable film making machines to meet the highest standard of our clients. We have Certificates of ISO9001 (since Jan. 15, 2000), Up dated to ISO 9001:2008, CE certificate for straw series machine and PVC heat shrink film making machine. Sold to more than 100 countries and agents in Argentina, Brazil, Chile, Colombia, Egypt, Greece, Indonesia, Iran, Malaysia, Russia, Singapore, Thailand, Turkey…Please feel free to contact us for more PVC shrink film machines information.


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KOWIn – Professional Plastic Recycling & Reproducing Turn Key Plant Manufacturer

KOWIn has researched and developed turn-key recycling plant for various materials more than 30 years of experience; also, established KOWIn lab factory.


Our lab factory is a turn-key plant, including crushing, washing, extrusion-pelletizing and waste water filtering system. KOWIn recycle various kinds of materials, such as, agriculture film, drip tape, net, bottle & injection, and so on. It is in operation and production for long term.


Also, KOWIn is in accompanied with the actual production in our lab factory as a basis and makes education & training for our customers to achieve our highest principle “HONESTY & TRUST”.


Regarding turn-key recycling plants, highly welcome to visit KOWIn for more information.


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Taiwan Manufacturer Of Extrusion Machine – Shang Ta Chia

Established in 1984, Shang Ta Chia Industrial Co.,Ltd. is a leading and professional manufacturer of extrusion machine. We provide a wide of best service and high quality products including PP/PC hollow profile extrusion line, PP/PC/PVC corrugated sheet extrusion line, PP film extrion line, etc. Shang Ta Chia is a famed manufacturer who not only has a wide experiences on the technics but also strive to research and develop advanced machinery. Therefore, our extrusion machinery is definitely surpassing other manufacturers. Furthermore, we look forward to searching a good business partner. Welcome to visit our website for more details, if you have any question about our extrusion machine, you can tell us and we will give you early reply. We are honored to receive your requests.

extrusion machine

extrusion machine

Shang Ta Chia Industrial Co., Ltd.

No. 23, Lane 466, Sec. 2, Kang Nan Rd., Wu Chi District, 435 Taichung City, Taiwan R.O.C.

Tel: 886-4-26302231



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