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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.

  • Clinton, IA 563-242-1801

    With locations in Clinton & Dewitt, IA, Walnut Ridge, AR & Mexicali, Mexico, Custom-Pak leads the way in advanced extrusion blow molding technology, even designing & building energy efficient machines & sophisticated molds for faster, more cost efficient & better quality results. We serve all markets with a wide array of products. Contact us today for more information.

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  • Winfield, KS 620-221-9464

    Our team of experts at Western Industries is customer-focused and customer driven. We serve our customers by helping them every step of the way, offering services such as process improvement, complete product assembly, and full supply chain management. When customers work with us, they choose the Western Advantage. For more information about our services, contact Western today!

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  • Riverside, CA 951-360-6055

    Blow Molded Products is your one-stop source for top quality blow molded products. We are ISO 9001 compliant and do everything under one roof—standard and custom design parts, in-house tooling, product and mold design, and complete mold making capabilities. Whether you are in need of a carrying case or a utility chest, no job is too difficult for our team of engineers. Our attention to detail is unmatched, and we are eager to take on the next challenge. Contact us today!

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  • Sturgis, MI 269-651-9488

    For everything blow molding, from extrusion blow molding to injection molding, we have you covered. We are a fully integrated supplier and offer the highest level of customized service, down to engineering and design consulting for all your project needs. We do it all and with low prices! Visit our website or send us an email to discover why we say the customer is king.

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  • Valencia, CA 661-257-0066

    Valencia Plastics is a leading edge blow molder with new methods to add value & ensure superior quality for any job from 10 grams to 3 lbs. Discover our expertise with many plastics & a wide range of machinery. Customers can expect the best from concept to end blow molded plastic product. Serving such industries as aerospace, defense, medical, commercial & pharmaceutical for over 15 years!

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  • Coloma, MI 269-849-3200

    We are your extrusion blow molding experts! Since 1952 we have been dedicated to ensuring that we are outputting the highest quality parts and services in the industry in order to keep our customers coming back to us for all of their blow molding needs. We have the technical staff that you can count on to work with you from concept to completion to ensure the best products. Visit us online today or call one of our customer support staff to learn more!

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businessIndustry 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.



Extrusion Blow Molding Informational Video