- 6 leading manufacturers
- 35 additional suppliers
- 16 states and provinces
- 15 related categories
- 4 guide sections
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.
Suppliers located in MI, OH, CA +13 more states
Contents (4 sections)
Leading Injection Blow Molding Manufacturers
Showing all 6
Certification, declaration and ownership records are on file for 1 of 6 suppliers in this list, from supplier reports IQS reviewed. A supplier without one listed may still hold it.
| Placement No. | Manufacturer | Location | Contact | Actions | |
|---|---|---|---|---|---|
| 1 | Western Industries Plastic Products LLCNo matter what your blow molding needs are Western Industries is ready to assist you. We believe in thinking outside the mold and using unique methods to come up with large-part blow molding solutions for our customers. We have access to state-of-the-art technology and over 100 years of combined experience serving a variety of industries. When you choose Western Industries, you have the Western Advantage. Call today for more information! | Winfield, KS | |||
| 2 | Iceberg MoldingWith 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. | Sturgis, MI | |||
| 3 | Hi-Rel Plastics & MoldingHi-Rel Plastics is a U.S. custom blow molding manufacturer specializing in extrusion blow molding, injection blow molding, and stretch blow molding for custom plastic bottles, containers, tanks, ducts, and hollow plastic parts. We provide prototype through high-volume production, precision tooling, engineering-grade resins, tight quality control, fast lead times, competitive pricing, and value-added assembly for medical, automotive, industrial, consumer, and packaging applications.
Hi-Rel Plastics & Molding states: EU RoHS (Supplier-reported, reviewed Sep 2026), EU REACH (Supplier-reported, reviewed Sep 2026), Small Disadvantaged Business (Supplier-reported, reviewed Sep 2026), Minority-owned business (Supplier-reported, reviewed Sep 2026) | Riverside, CA | |||
| 4 | ACM Plastic Products, Inc.Depend on the custom blow molders since 1978. ACM Plastic Products offers complete blow molding capabilities, including many specialty services like insert molding, painting, foaming, assembly & packaging – just name it! New product development & short runs through high volume production, our seasoned professionals put quality & cost efficiency first. Call us today for honestly the best solution. | Sturgis, MI | |||
| 5 | EXI-plast Custom Moulding Ltd.EXI-plast is a full-service provider of custom plastic moulding services, specializing in blow moulded solutions for customers worldwide across a wide variety of industries. With over 30 years of experience developing, producing, and finishing custom plastic products, we have also become a sustainability leader through the integration of postconsumer resins. With products ranging from less than 1lb up to 30lbs, EXI-plast is Molding the Future! | Centralia, ON | |||
| 6 | SPI GroupSince 1952, SPI Group has provided custom blow molding for a diverse range of industries, such as agricultural, plumbing, electronics, and more. Our team can meet your needs with a variety of plastics, such as HDPE, ABS, polycarbonate, and TPE. Secondary operations and assembly services are also available. SPI is a leader in our industry due to our customer-oriented ability to deliver successful production solutions and unmatched product quality. | Coloma, MI |
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Leading injection blow molding manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Injection Blow Molding Companies
The category’s other injection blow molding companies are listed on their own page, with location, phone and website where each supplier provides them.
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Quick Answers
- How many injection blow molding manufacturers are listed on IQS Directory?
- 6 leading manufacturers and 35 additional suppliers.
- Where are injection blow molding manufacturers located?
- The listed suppliers are in 16 states and provinces: Michigan (7), Ohio (7), California (4), Minnesota (4), Illinois (3), Kansas (2), New Jersey (2), New York (2), and 8 more.
- How do I get quotes from injection blow molding suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
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 do not have handleware. It is faster than extrusion blow molding and offers higher precision. Parts may have a threaded neck for screw-on lids, thin yet strong walls, and safety enclosures like those on pill bottles.
Applications of Injection Blow Molding
Injection blow molding is a two step process that uses a mandrel to form the preform and then a blow molding machine to form it into a plastic container. 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 high volumes to offset the higher cost of setting up two different molds for one process.
Materials Used in Injection Blow Molding
These thermoplastics are often used in injection blow molding to produce containers:
- High density and low density polyethylene
- Polycarbonate
- Polypropylene
- Polyvinyl Chloride
- Barex
- Polyethylene Terephthalate
Process of Injection Blow Molding
Since it is essentially two forming processes combined into one, injection blow molding involves more steps than other forms of blow molding. First, a parison 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 parison, 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 parison. The almost-molten plastic inflates like a balloon and is blown 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.
Benefits of Using Injection Blow Molding
Injection blow molding companies have been discovering ways to make their facilities more "green," and the innovations that are now being utilized have been impressive. Businesses do more than just simple recycling programs. These companies have added water chillers in the injection process, which causes drastic savings in the energy costs of the manufacturing procedures. Also, many companies acknowledge that plastic products are a big contributor to overall pollution, so 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 utilize a thinner wall layer. Water bottle manufacturers also engineer new bottles that will bio-degrade at a faster rate than bottles made five years ago.
More Injection Blow Molding Information
Injection Blow Molding Informational Video