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Extrusion Blow Molding Manufacturers and Companies

IQS Directory provides an extensive list of extrusion blow molding companies and suppliers. Utilize our website to review and source extrusion blow molding companies with our easy-to-use features which allow you to locate extrusion blow molding companies that will design, engineer, and manufacture extruded blow molding products for your exact specifications. Our request for quote forms make it easy to connect with leading extrusion blow molding companies. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for extrusion blow molding equipment, extruded blow molding products, or polystyrene extrusion blow molding.

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ARTICLES AND PRESS RELEASES

  • Extrusion Molding

    I once watched a documentary about the process that manufacturers use to make plastic bottles. It was really interesting because the method is similar to that of glass blowing. Raw plastic materials are melted down into a liquid-like state and with the use a mold the plastic in blown into shape. To someone that has never witnessed glass or plastic blowing; I suppose it could be similar to that of blowing up a balloon. The materials start as a compact substance and with the use of air it expands exponentially...

  • Tejas Plastics, Inc. Offers Custom Extrustion Blow Molding

    Tejas Plastics, Inc. is a leading extrusion blow molder specializing in large parts and custom designs for a number of industries including: automotive, electronic, government, home & garden, medical, plumbing supplies, sporting goods, playground equipment, transportation, welding supplies and more. This global supplier of premium blow molded products offers plastic solutions at an affordable price and their processes are ideal for long or short run production. Located in San Antonio, this proficient manufacturer will quickly deliver your high quality products. The teams at Tejas Plastics, Inc. are dedicated to providing...

  • Parts of a Blow Molding Machine

    The first blow molding machines were developed in the 1800s. Although, it wasn't until the 1940s when it gained fame for the mass manufacturing of plastic bottles. Now, In the United States alone, blow molding companies are responsible for producing nearly 40 billion bottles annually. Although the main produced with blow molding machines, bottles aren't the only one. Other products include CD cases, tanks, toys, cases, etc. the list goes on. Typical parts and workings of a blow molding machine include an extruder, which heats plastic pellets into molten plastic....

  • Amazing Plastic Innovations

    How far would you trust a plastic product? We easily trust them to carry our water or hold up a shower curtain but what a more meaningful task? Would you trust plastic to protect you from the elements, in say, a tent? What about as your home? There is a growing trend of eco-friendly homes that are not only interesting to look at but are also energy efficient. Some homes are even constructed from 100% recycled materials. Picture the walls of a house completely designed from 2-liter soda bottles. How...

Industry Information

Extrusion Blow Molding

The extrusion blow molding process is the simplest method of producing hollow, thin walled plastic containers. Most plastic bottles are manufactured by this method in a wide variety of shapes, sizes, neck openings and handle styles. Finished products range from large water tanks to small disposable eyedroppers.

The extrusion blow molding process is based on glass blowing to produce glass bottles, but uses PET, or biaxial oriented polyethylene terephthalate, as well as high density polyethylene, both of which are considered the best thermoplastics for extrusion blow molding. The plastic bottles are lightweight, usually clear or tinted, and strong enough to withstand the pressure of carbonation in certain beverages. Extrusion blow molding bottles are made to hold beverages like juice and pop, liquid soap, detergent and motor oil for consumer and industrial applications within the food and beverage, automotive, cleaning products, medical, cosmetics and drinking water industries. They are extruded into two mirror molds, and therefore have a visible seam dividing the bottle in half. Compared to other blow molding process, extrusion blow molding generates little waste, all of which is recyclable.

Extrusion blow molding begins with the formation of a parisan, which is a plastic tubular preform. Plastic pellets are loaded into a hopper and fed down into an extruder screw with a heating unit. As the pellets pass through the screw, they become molten and are pumped toward the die head. The liquid plastic flows horizontally and then downward, and emerges as a soft tube preform. The preform, which is called a parisan, is then extruded by compressed air as 2 molds simultaneously come together to form a cavity in the shape of the container. The plastic balloons out and is stretched thin into the mold cavity, taking its shape. The mold cavity is then chilled by cold water running through the molds. The newly formed part will always have a seam where the two mirror molds came together, and a small point at the bottom where the plastic balloon started. Some parts may have excess plastic that needs trimming from the neck or parting lines. The newly formed plastic parts are then put through post forming operations, including drilling, die cutting, milling, painting and adding decals or labels. Each container or part only takes a few seconds to form, and may be done in high volumes. They are formed in a continuous or intermittent method.



Extrusion Blow Molding
Extrusion Blow Molding
Extrusion Blow Molding - R&D Molders, Inc.
Extrusion Blow Molding - R&D Molders, Inc.






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