Plastic Molding Manufacturers and Companies

IQS Directory implements a thorough list of plastic molding companies and suppliers. Utilize our listing to examine and sort top plastic molding companies with previews of ads and detailed descriptions of each product. Any plastic molding company can design, engineer, and provide plastic molding to meet your companies specific qualifications. An easy connection to reach plastic molding companies through our fast request for quote form is provided on our website. The company information includes website links, company profile, locations, phone, product videos and product information. Customer reviews are available and product specific news articles. This source is right for you whether it's for a manufacturer of pvc molding, vinyl moulding, and thermoplastics injection molding.

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ARTICLES AND PRESS RELEASES

  • Thermoplastics Injection Molding: Recycling

    Plastic is not considered the most environmentally friendly material we humans have developed. Because it is a man made substance it does not deteriorate in the same way that wood or metal does, returning to the earth in a fashion that does not harm it but nurtures it. Of course this is true for altered metallic materials as well, but the plastic substance is most poignant. However, there are certain types of plastics that are able to be reused again and again. So even though they cannot be disposed of...

  • My Movie Case Maker

    Being a fan of films, I own over a hundred movies and love displaying them within their cases for guests to peruse whenever they come over to my apartment. Discussing movies is one of the first conversations I have with new individuals, and I can usually tell if I am going to like them or not based on how close their tastes are to mine. With all this said, the movies I own are my prized possessions, and the plastic cases that hold and protect them are just as important....

  • The Varying Sizes of Injection Molders

    There is no such thing as a small injection molder, at least not when comparing it to other industrial equipment that can be small enough to fit on a counter top comfortably. That is because these injection molded plastic producing machines have a couple essential parts that require quite a bit of space, from a corner of a room to the entire thing. How large the injection molder is depends on how it is being used, whether it is a part of a production line, and therefore modeled to be...

  • Plastic: The Investment of the Future

    Over the past few years, plastic injection moulders and plastic moulding companies have seen a rise in demand in a variety of sectors. The increased demand for plastic molded products is the result of a variety of changes in the industrial market. Part of the increase in demand is the result of new innovations in the plastic injection moulders industry. Several companies have created new ways to improve the production process of injection molding, which has lead to the ability to create more products from plastic than ever before. Many...

  • Plastic Molding: The Plastic Varieties

    Products made of plastic are everywhere in our culture partly because of the mass produced process that made them so readily and cheaply available; injection molding. Plastic molding has been around since the late 1800's, although it wasn't until the mid 1950's that it started moving toward the popularity it holds today. That is also when the varieties of plastic types started developing and eventually entered the plastic market as options for products. Although there are many types, certain ones are used for certain applications because each polymer has its...

  • Molded Plastic: The Every Plastic Product

    Molded plastic is everywhere, from the cups we drink from to the toys our kids play with to the phones we text and call on. Plastic is a part of the industrial, commercial and residential context and is now so integrated into our lives we can not escape it. So how is this plastic created, particularly when there are so many different kinds of plastic and new polymers still being developed? Molding is the way that plastic is formed into the plethora of products on the market today. Injection Molding...

Industry Information

Plastic Molding

The process of plastic molding involves the creation of molded plastic products using molten polymer resin or molten plastic. Materials such as wood and metal are difficult to mold, especially into configurations that are small and complex. These materials also cannot melt and be reformed, and can lead to a high amount of waste. However, plastic is highly malleable and can be turned, squeezed, twisted, or bent into countless shapes. Due to its wide range of beneficial properties, plastic has become a highly popular alternative material to these materials. Because of its versatility, plastic molding is a wise choice to fabricate a variety of products spanning a wide range of industries, and is the most common manufacturing technique that is used to fabricate these products. Items that we see and use every day, such as children’s toys, automobile dashboards, and bottle caps, are made by way of plastic molding.

The first step of the plastic molding process involves placing the desired material, in pellet form, into the machine’s hopper in preparation for melting. Next, the pellets are moved to a chamber where they are heated until they reach a molten liquid state. In this state, manufacturers can add agents such as dyes or other chemicals that will affect the final appearance of the product. Once the molten plastic is mixed, it is placed and enclosed into a mold cavity. With pressure, the material completely conforms to the design of the mold. Cooling agents that circulate cold liquid within the mold assist in the removal of heat from the plastic, leading the material to cool and fully solidify. Once the material is set, the mold can be split in two, releasing the filly formed product. Sometimes, a set of rods or pins is needed to safely remove the product from the mold. Once removed, the process begins all over again.

Plastic molding is utilized to some extent within a multitude of industries, such as automotive, computers, plumbing, medical, food service, and consumer. A popular material to use for plastic molding is plastic polymers, such as elastomers, thermosets, and thermoplastics. Plastic polymers are a popular choice due to its pliability. Plastic molding involves a prefabricated mold and melted plastics. However, there are other manufacturing methods available such as vacuum forming, compression molding, blow molding, and injection molding. The type of molding process is typically dependent on the intended purpose of the final product. Because of the ability of the plastic molding process to generate products at a fast rate and at close tolerances, it can be used for purposes such as prototyping and mass production.

The materials used in plastic molding have differing characteristics. Thermoplastics can be heated and melted down to a pliable state and then molded into a wide range of configurations. Once shaped, the thermoplastic material can be readjusted if necessary. However, in freezing temperatures, thermoplastic can become brittle. Thermosets, including polyimides or melamine resin, are hard and brittle once they dry. However, unlike thermoplastics, they cannot be readjusted or remolded once they have set. Elastomers, the most common form of which is rubber, maintain their elastic properties after they have cooled. There are some products that benefit greatly from the elasticity, including tool handles and children’s toys. There are other products where elasticity is required.

Plastic molding comes with numerous advantages. First, the process has a fast turnaround time. The speed may vary depending on the product’s complexity, but in general, the turnaround time is very short. In addition, the plastic component is often ready as soon as it leaves the mold, and usually does not need to undergo any further processes such as surface finishing. The vast majority of plastic molding machines are automated, and thus require little to no manual input. As a result, plastic molding machines are safer to use and they keep labor costs down. Plastic molding equipment keeps wastage costs at a minimum. They generate only a small amount of waste with every cycle, and the small amount of waste that is produced can be easily reused and recycle for other molding processes. One disadvantage to the plastic molding process is the initial cost of the equipment. The molds and the machinery can cost several thousand dollars. However, both the molds and equipment are engineered to last, and the products they generate are at a low cost. Therefore, there are numerous industries that swear by the plastic molding process. Plastic molding is a highly recommended process for manufacturing products, and its advantages far outweigh its drawbacks.


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Plastic Molding – MSI Mold
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