- 5 leading manufacturers
- 20 additional suppliers
- 15 states and provinces
- 15 related categories
- 4 guide sections
Rotomolded Product Manufacturers and Companies
IQS Directory is a top industrial directory listing of leading industrial rotomolded product companies and suppliers. Access our comprehensive index to review and source rotomolded product companies with preview ads and detailed product descriptions. These rotomolded product companies can design, engineer and manufacture rotomolded products to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these rotomolded product companies and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. We are the right resource for your information requirement whether its for a manufacturer of rotomolded reels and spools, polypropylene rotomolded tanks, custom roto molded tanks.
Suppliers located in CA, IN, MI +12 more states
Contents (4 sections)
Leading Rotomolded Product Manufacturers
Showing all 5
Certification, declaration and ownership records are on file for 1 of 5 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 | Roto Dynamics Inc.As a full-service rotational molding company, Roto Dynamics is your source for high quality, custom rotomolded products. Since our inception, we have continued to earn success by closely working with our customers, developing innovative and tailored solutions. We are with you every step of the way, from design and development to production and assembly. For a complete view of our capabilities and services, check out our website, or submit a request for quote to see how we can serve you! | Orange, CA | |||
| 2 | Sherman Roto TankWe are a custom manufacturer of rotationally molded products. Our state of the art technology creates precise, cost effective and dependable products. Whether your order is large or small, we want to be sure you are satisfied. We also manufacture a standard line of chemical storage and process tanks. All of our products go through rigorous testing. The safety of those working with or near our tanks and the environment is a top priority for us. | Pearland, TX | |||
| 3 | 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 | |||
| 4 | Hi-Rel Plastics & MoldingHi-Rel Plastics is a U.S. custom rotational molding company specializing in durable rotomolded plastic parts, tanks, containers, housings, and large hollow products. We provide prototype through high-volume production using high-quality polyethylene and engineering-grade materials for industrial, agricultural, medical, marine, and consumer applications. Our rotational molding services deliver durable, cost-effective parts with competitive pricing, fast lead times, and reliable U.S. manufacturing.
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 | |||
| 5 | U.S. Plastic Corp.United States Plastic Corp. manufactures and distributes some 25,000 plastic items serving over 85,000 clients operating in a factory five acres under roof. Our major product is manufacturing plastic tanks, the distribution of bottles, carboy and plastic containers. This also includes plastic sheet, rods, tubes, flexible tubing and thousands of plastic fittings. | Lima, OH |
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Leading rotomolded product manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Rotomolded Product Companies
The category’s other rotomolded product companies are listed on their own page, with location, phone and website where each supplier provides them.
View 20 Additional Rotomolded Product CompaniesDo not see your company listed in Rotomolded Products?
Engineers and buyers use this page to find rotomolded product suppliers. Add your company to the Rotomolded Products listings so they can find you too.
List Your Company- Listed in the Rotomolded Products directory
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Quick Answers
- How many rotomolded product manufacturers are listed on IQS Directory?
- 5 leading manufacturers and 20 additional suppliers.
- Where are rotomolded product manufacturers located?
- The listed suppliers are in 15 states and provinces: California (4), Indiana (3), Michigan (3), Ohio (3), Texas (2), Iowa (1), Kansas (1), Kentucky (1), and 7 more.
- How do I get quotes from rotomolded product suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
Rotomolded Products
Rotomolded products are seamless, single-piece plastic parts that are thin-walled and hollow. They are made from lightweight thermoplastics like polyurethane, polypropylene, nylon, and polyvinyl chloride that form aluminum or steel molds to fabricate many different shapes. Rotationally molded plastics are subjected to high heat and therefore must exhibit good thermal stability.
Applications of Rotomolded Products
Rotomolded products require no assembly and have even, smooth walls every time. Rotational moulding is an inexpensive process that fabricates high-quality and durable products, but works slowly in small runs.
Industries Using Rotomolded Products
Rotomolded products are found in many different industries, including:
- Sporting Goods
- Marine
- Materials Handling
- Packaging
- Office
- School
- Recreation
- Toy Manufacturing
- Medical
- Construction
- Plumbing
- Agricultural
- Automotive
- Promotional/Display
- Road Safety
- Furniture Industries
Examples of Rotomolded Products
Many different containers are rotomolded, including:
- Plastic Tanks
- Cases
- Packaging Containers
- Bins
- Trash Cans
Other products include:
- Doll Parts
- Lawn Ornaments
- Road Cones
- Kayaks
- Playground Slides
- Outdoor Chairs
- Footballs
- Sleds
- Pipe Fittings
- Hoppers
- Plastic Planters
These products are usually medium to medium-large in size but cannot exceed 20 feet because of machinery constraints. They are sometimes multi-wall, often hollow, and the resin can contain additives for moisture protection, flame retardancy, static elimination, color, and texture.
Rotational Molding Process
The rotational molding process is simple but requires huge, expensive machinery that uses lots of space and needs a fully insulated walk-in oven.
Specialty or stock molds are fabricated by welding or die casting and then attached to a massive, round revolver that spins and revolves on two axes simultaneously.
Fine grain plastic resin powder is dumped inside the mold, which is then closed.
Multiple products may be formed at one time, regardless of their shape or size difference.
Each machine has two to four revolvers that hold molds.
The revolvers are either enclosed in an oven or travel to a heated environment, where the process begins. They operate slowly under low pressure and high heat.
Inside the molds, the plastic powder becomes molten and smoothly and evenly coats the interior walls.
They are then transferred to a cooling station, where they continue to rotate and are exposed to cold water and air for about 20 minutes in order to cure.
Next, the newly formed product is manually removed from the mold, which can be a difficult process.
Some products need further finishing, such as:
Welding, where parts are attached.
Cutting to add openings and holes.
After the plastic has been cleaned and polished, it is ready to be shipped.
More Rotomolded Product Information
Rotomolded Products Informational Video