Injection Blow Molding Manufacturers and Companies

IQS Directory provides a detailed list of injection blow molding companies and suppliers. Find injection blow molding companies that can design, engineer, and manufacture injection blow molded products to your specifications. Peruse our website to review and discover top injection blow molding companies with roll over ads and complete product descriptions. Connect with the injection blow molding companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of injection blow molding products, injection blow molds, and rotational blow molding of every type, IQS is the premier source for you.

  • Clinton, IA 563-242-1801

    For over 43 years, injection blow molding has been the name of the game at Custom-Pak. We consistently supply the highest-quality blow molding products at the lowest possible prices. Our customers know we will never steer them wrong. To find out what makes us stand out from the competition, visit us online today or you can give us a call or send an email. We love hearing from our customers!

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  • Winfield, KS 620-221-9464

    Western Industries has over a century's worth of combined experience manufacturing large-scale blow molded products. We believe in blowing past the limits of conventional blow molding methods, which is why clients hold us to a high standard. We are not only customer focused, but we are customer driven. For more information about our products and services, contact us today!

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  • Riverside, CA 951-360-6055

    If you require a product with complex features such as irregular parting lines or double walls, our team at Blow Molded Products can produce the part you have in mind. Our team of engineers have the experience to take on challenges that others don’t, and have served industries varying from marine, to sporting goods, to medical. Whether you would like your product to have a simple or irregular design, we can make it happen. We are ISO 9001 compliant.

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  • Sturgis, MI 269-651-9488

    Need injection blow molding machines? We can provide you with everything you need to satisfy your customers. Our goal is to stop the frustrations that other blow molding suppliers offer and instead offer our customers with clear, low cost, high tech solutions to their problems. Don’t believe us? Visit us online or give us a call today so we can prove it!

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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

    When it comes to injection blow molding we know what you want! All of our products are put through extensively rigorous testing under the meticulously watchful eyes of our quality control teams in order to further ensure that we are providing our customers worldwide with the highest quality products available at all times. To learn more about what we may be able to do for you; visit our website or call us today!

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  • More Injection Blow Molding Companies


Custom Injection Molded Medical Diagnostic Rack

This was a transfer project for a large medical device OEM which includes injection molding and assembly. The part shown here is a component of a medical Diagnostic Machine called a Slide Output Rack. The Rack is a 3 piece design assembled together with 3 screws and quality control tested by functionally fitting to the mating piece in the machine. The 2 Side pieces are injection molded with a 20% glass-filled PC resin and the Front Piece is injection molded with a blue-tint PC resin. The finished assemblies are individually... Read More

businessIndustry Information

New Innovations Regarding Injection Blow Molding

Injection blow molding, as its name would suggest, is a combination of plastic injection molding and blow molding that creates hollow, thin-walled plastic containers that are smaller and does not have handleware. It is faster than extrusion blow molding, and offers higher precision. Parts may have a threaded neck for screw-on lids, very thin yet strong walls and safety enclosures like those on pill bottles.

Injection blow molding companies have been reaching out to discover ways to make their facilities more “green” and the innovations that are now being utilized have been very impressive. Businesses do more then just simple recycling programs. These companies have added water chillers in the injection process that causes drastic savings in the energy costs of the manufacturing procedures. Also many companies acknowledge that plastic products are a big contributor to the overall pollution in this world and these manufacturers are designing new models that use less plastic. For example, in the water bottle industry there are innovations in the water bottle design that utilizes a thinner wall layer. Water bottle manufacturers also engineer new bottles that will bio-degrade at a much faster rate than bottles which were made five years ago.

Innovations like this are a catalyst for not only a greener world but also profits for companies. Some consumers gravitate toward corporations who are environmentally conscious. These companies are not compromising the integrity of their products but merely updating the methods in which they produce plastic items. Many companies are even expanding their facilities due to the increased demand on the industry for more injection blown products. These expansions provide more jobs for constructing and maintaining the facility. This increase also allows for more opportunities for innovation and manufacturing growth. There is something to be said for those companies that make investments into renewable energy solutions and building upgrades. Solar panels and wind turbines cannot power an entire manufacturing facility but long term energy savings will result in savings for the company and for the customers.

Injection Blow Molding

Injection blow molding is a two step process that uses a mandrel to form the preform, and a blow molding machine to form it into a plastic container. Thermoplastics like high density and low density polyethylene, polycarbonate, polypropylene, polyvinyl chloride, Barex and polyethylene terephthalate are all used in injection blow molding to produce containers like tanks, jars and bottles. Pop bottles are most often made by this process because the design is not limited to uniform thickness—thicker bottoms and middles are possible by increasing the cavity around the mandrel in the second step of the injection blow molding process. They are also able to handle the pressure generated from holding carbonated beverages. Injection blow molded products are usually made in very high volumes, in order to offset the higher cost of setting up 2 different molds for one process.

Since it is essentially 2 forming processes combined into 1, injection blow molding involves more steps than other forms of blow molding. First, a parisan made of plastic is formed when a thermoplastic preform is heated to molten form and injected around a hollow mandrel called a blow stem. Once semi-cured but still soft and formable, the newly formed parisan, which is still around the stem, is placed into the blow molding chamber. The steel blow stem then extends, forcing the plastic to elongate to the desired size of the product, which will also increase its overall strength. Then, compressed air is injected through the hollow blow stem and into the parisan. The almost-molten plastic inflates like a balloon and is blow against the walls of the mold cavity, taking its shape. After it cools and hardens, the newly formed plastic container is ejected from the mold. It exhibits a seamless design and does not need to be trimmed. Injection blow molding machines use multiple mandrels, and may form up to 12 containers at one time.

Custom-Pak Case
Western Case
Injection Blow Molding - Custom-Pak.
Injection Blow Molding - Western Case.

Injection Blow Molding Informational Video