- 5 leading manufacturers
- 20 additional suppliers
- 15 states and provinces
- 15 related categories
- 3 guide sections
Roto Moulder Manufacturers and Companies
IQS Directory implements a thorough list of roto moulder companies and suppliers. Utilize our listing to examine and sort top roto moulder companies with previews of ads and detailed descriptions of each product. Any roto moulder company can design, engineer, and manufacture roto moulders to meet your companies specific qualifications. An easy connection to reach roto moulder companies through our fast request for quote form is provided on our website. The company information includes website links, company profile, locations, phone, product videos and product information. This source is right for you whether it's for a manufacturer of rotomoulding materials, insulated roto molded, and roto molded compost tumblers.
Suppliers located in CA, IN, MI +12 more states
Contents (4 sections)
Leading Roto Moulder 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 roto moulder manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Roto Moulder Companies
The category’s other roto moulder companies are listed on their own page, with location, phone and website where each supplier provides them.
View 20 Additional Roto Moulder CompaniesDo not see your company listed in Roto Moulders?
Engineers and buyers use this page to find roto moulder suppliers. Add your company to the Roto Moulders listings so they can find you too.
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Quick Answers
- How many roto moulder manufacturers are listed on IQS Directory?
- 5 leading manufacturers and 20 additional suppliers.
- Where are roto moulder 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 roto moulder suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
Roto Moulders
Roto moulders are large machines that economically fabricate many different seamless, single-part plastic products. They use a combination of high heat, rotation, and metal moulds to create plastic constructions that may be as small as a water bottle and or the size of a large storage tank.
Rotomoulding is an alternative to thermoforming, blow molding, and injection molding, and although it is lower in cost, this process is not as common because of the complex and large machinery required for the fabrication process.
Industries Using Roto Moulding
Roto moulders produce many different parts and products for the following industries:
- Food and Beverage Processing
- Medical
- Pharmaceutical
- Waste Management
- Marine
- Sporting Goods
- Recreation
- Toy
- Packaging
- Materials Handling
- Automotive
- Plumbing
- Construction
Roto Moulding Process
They are composed of a series of moulds, an oven, a cooling chamber, and large mould spindles that are mounted on a rotating axis. The roto-molding process begins with the fabrication of the mould, which is made either of stainless steel or aluminum. Depending on the complexity, they are either welded or die-cast. Aluminum moulds are thicker since it is a softer metal. The polymer resin, in the form of a fine powder, is poured into the mould. The spindles begin rotating in two directions into the oven chamber. Under high heat, the plastic melts and evenly coats the inside walls of the mould. To cure, the moulds are then taken to a cooling chamber.
Types of Roto Moulders
There are several different types of roto moulders, and they include rock and roll, clamshell, vertical rotational, shuttle, and carousel machines.
Rock and roll machines are composed of an arm that holds a large mould.
Clamshell machines are also single-arm configurations and are considered small.
Vertical rotational machines are energy efficient and can fit into compact heating and cooling chambers.
Shuttle machines move the moulds from different heating and cooling areas. They can fabricate large numbers of products at once but require a lot of operating space.
Finally, carousel machines, which are the most common type, have several arms that can be in the heating or cooling chambers simultaneously.
The cooling process takes about 20 minutes. Once the plastic has cured, the newly formed product is unloaded manually, which can be difficult if the plastic has shrunk during the process. Parts that emerge from roto moulders, if they are intended to have holes or openings, must be sent for additional processing like cutting and surface finishing.
Roto Moulder Informational Video