- 6 leading manufacturers
- 35 additional suppliers
- 16 states and provinces
- 15 related categories
- 3 guide sections
Blow Molders Manufacturers and Companies
IQS Directory provides a comprehensive list of blow molders and suppliers. Use our website to review and source top blow molders with roll over ads and detailed product descriptions. Find blow molders that can design, engineer, and manufacture blow molding products for your company. Then contact the blow molders through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Whether you are looking for manufacturers of extrusion blow molds, stretch blow molds, plastic blow molds, or customized blow molding of every type, this is the resource for you.
Suppliers located in MI, OH, CA +13 more states
Contents (4 sections)
Leading Blow Molders 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 blow molders manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Blow Molders Companies
The category’s other blow molders companies are listed on their own page, with location, phone and website where each supplier provides them.
View 35 Additional Blow Molders CompaniesDo not see your company listed in Blow Molders?
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Quick Answers
- How many blow molders manufacturers are listed on IQS Directory?
- 6 leading manufacturers and 35 additional suppliers.
- Where are blow molders 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 blow molders suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
Blow Molders
Blow molders are used in the formation of blow molded plastic products. They create hollow, thin-walled plastic components and parts. Using continuously running extruders and a tuned die-head, a parison (a tube-like piece of plastic) is formed from thermoplastic resins, such as high and low density polycarbonate, polypropylene, polyvinyl chloride, polystyrene, polyamide, and acetal.
Applications of Blow Molders
Blow molders use blow molded plastics to manufacture many different products, including toys, blow molded cases and drums, plastic beverage bottles and containers, sports equipment, and a broad range of products used in the consumer industry. Injection blow molders are commonly used in the manufacturing of smaller, precision-focused items, while extrusion blow molders produce large quantities of simple, wide-necked products and handleware. Stretch blow molding is most often used in the production of plastic bottles, especially those for use in the beverage industry. Blow molders have the capacity to produce a broad range of product sizes, from single-serve bottles to larger containers up to 30 liters in volume with possible diameters of 24 inches.
How Blow Molders Work
The purpose of plastic blow molding is to form a uniform finished product that is smooth and airtight and does not need to be joined together in any way. Blow molders can be continuous process machines, such as rotary wheel systems, producing a high-volume of products in a high-paced manner, or the machines can be intermittent, producing a certain number of products at a time rather than a continuous stream with single or multiple cavity capabilities.
The processes of plastic blow molding can be extrusion, injection, or stretch blow molding, depending on elements of the preform process. During the blow molding process, a parison is clamped into a mold cavity, and compressed air is then forced into the tube with the help of a blow pin. The plastic expands or "balloons" due to the air pressure and fills the shape of the cavity. The cavity is then cooled, usually through the process of conduction using liquid, and the molten plastic hardens and sets in the shape of the mold. The flow of air pressure into the parison needs to be carefully controlled to ensure consistent expansion of the plastic and uniform thickness of the product walls. Varying wall thicknesses could compromise the strength and durability of the final product.
Benefits of Using Blow Molders
Apart from high-volume production, minimal material wastage and the versatility of the process, other advantages to blow molders are the low costs of mold versus product output return and the durability of the products produced.