Plastic Blow Molding

A reliable source for Plastic Blow Molding information and a resource for accessing leading Plastic Blow Molding and suppliers.

Plastic blow molding is widely used because it is well-suited for the manufacturing of durable hollow parts and because it can be used to form standard and common plastic shapes, but also can be custom designed to create plastic products that are specific to a customer’s unique needs. Read More…

Plastic Blow Molding Blow molders make many different products, including toys, blow molded cases for transport and storage, garbage cans, and most commonly blow molded containers like plastic beverage bottles. The purpose of plastic blow molding is to create a uniform product that is smooth, airtight and does not require joining.

Leading Manufacturers

Clinton, IA  |  563-242-1801

With locations in Clinton & Dewitt, IA, Walnut Ridge, AR & Mexicali, Mexico, Custom-Pak leads the way in advanced 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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Custom-Pak, Inc. $$$

Winfield, KS  |  620-221-9464

Western Industries provides custom plastic blow molding product design, engineering, mold design and extensive capabilities and manufacturing expertise for mid- to large-part products, in both single- and dual-head processing. As a blow molder supplier that offers plastic bottles, blow molded cases, & more, contact us for all of your blow molded plastic needs.

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Western Industries Plastic Products LLC $$$

Riverside, CA  |  951-360-6055

At Blow Molded Products, we have experience doing custom blow molding for a multitude of industries, including furniture, sporting goods, health and safety, electronics, and more. We are capable of performing services such as single & double wall blow molding, and mold making—all at a competitive price. Whether it is a carrying case or a custom designed product, no job is too challenging for us. We are ISO 9001 compliant. Contact us today to learn more!

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Blow Molded Products $$$

Sturgis, MI  |  269-651-9488

With blow molding presses from 1 to 80 lbs., Iceberg Molding has the ability & resources for every step of your blow molding requirements - from a competitive part quote to part & product development support start to finish. Iceberg Molding has an established infrastructure like no other. We can simply mold parts for you or completely assemble & ship your finished products anywhere in the world.

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Iceberg Molding $$$

Willowbrook, IL  |  630-750-9494

At LHB Plastics, we don’t just do blow molding. We make it our goal to personalize our projectsto ensure client success. LHB Plastics offers a full range of services, from molded parts to complete assembly. Additional services include engineering support, finished part testing, in-house 3D rapid prototype part printing, and more. Our company is ISO 9001/14001 – 2015 Certified / TS 16949 Compliant. Call LHB or visit our website today to learn more!

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LHB Plastics $$$

Riverside, CA  |  951-354-0258

At R.M.Tool, we provide custom CNC Machining to help our customers solve some of their toughest machining needs. Our state-of-the-art CNC machining department is equipped with Milling, Turning and Wire EDM Machining Centers. We can process materials such as Steel, Stainless, Aluminum, and other Exotic Materials. We strive to always please our customers by always delivering quality products. From design to finished product, R.M.Tool is your one stop shop for all of your CNC machining needs.

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Hi-Rel Plastics & Molding $$$

Coloma, MI  |  269-849-3200

SPI Blow Molding has provided custom blow molding for a diverse range of industries since 1952. Markets served include electronics, plumbing, agricultural and many more - specializing in low to medium volume work and have a variety of materials available such as HDPE, ABS, polycarbonate, and TPE. No matter what the demands, we are focused on developing a proactive and effective solution for your needs.

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SPI Blow Molding LLC $$$

Manchester, NH  |  603-644-1660

North American Plastics is ISO certified, providing custom plastic injection molding and blow molding products across America. If you need a worry free solution for your project, allow us to serve you as well. Our experience and state of the art injection molding & blow molding equipment allows us to serve a variety of industries. Custom blow molding products include bottles, bellows & containers.

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North American Plastics, Ltd. $$$
placeholder image Custom-Pak, Inc. Western Industries Plastic Products LLC Blow Molded Products Iceberg Molding LHB Plastics Hi-Rel Plastics & Molding SPI Blow Molding LLC North American Plastics, Ltd.

Plastic Blow Molding Plastic Blow Molding - Western Industries, Inc.

While injection molding and rotational molding are more precise methods of plastic molding, plastic blow molding offers the advantage of high-volume capacity, fast turnaround times and relatively low costs. The process usually takes a matter of seconds and therefore blow molding machines can produce high-volumes of durable plastic products in short periods of time with minimal finishing requirements.

In the basic process of plastic blow molding, plastic is melted and softened and formed into a parison which is then clamped into a mold. A blow pin is then used to force compressed air into the parison, and the molten plastic expands to fit the shape of the cavity. Controlled and constant air flow is essential to the quality of the final outcome as varying wall thicknesses compromise the strength and durability of the product.

Blow molders have to ensure the constant expansion of the plastic in the mold to achieve uniform wall thickness in the product. The cavity is then cooled, usually by conduction, and the hardened plastic product is removed from the mold, sometimes with the assistance of ejector pins. There are three main processes of plastic blow molding: injection, extrusion and stretch. Injection blow molding is a combination of standard injection molding methods and plastic blow molding and is typically used to create smaller products that require greater precision.

Extrusion molding allows for a wide variety of shapes and sizes, with the added benefit of handleware capabilities, and yet results in a thin seam where the two mirror parts of the cavity joined. Stretch molding is commonly used to produce vast quantities of plastic bottles.

Plastic Blow Molding Informational Video