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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. Customer reviews are available and product specific news articles. This source is right for you whether it's for a manufacturer of rotomoulding materials, insulated roto molded, and roto molded compost tumblers.

  • Orange, CA 877-768-6585

    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!

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  • Pearland, TX 281-648-0909

    We 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.

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  • Madera, CA 559-673-4764

    IRM uses the highest quality, environmentally friendly polymers for the customer’s application including products requiring FDA and UL approval. Constant electronic monitoring of the manufacturing process assures consistency of all products. The finished goods are inspected by highly trained factory technicians resulting in the highest quality products available.

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  • Elberfeld, IN 800-304-4600

    We provide outstanding custom plastic rotational molding. Our teams offer short lead times and we will assist you from concept to production. All of our materials and designs are FDA approved and we can handle the most complex projects. We are your one stop shop for all of your rotational molding needs. Give us a call today to learn more information!

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  • Middletown, OH 513-424-1955

    The Granger Plastics Company specializes in large and more complex mold products and components. Our rotational molding services provide products with competitive pricing, design flexibility and uniform construction. We provide a variety of complex inserts, threaded fittings, roto-molded heavy walled intricate parts, as well as custom molds for to fit the changing needs of all customers.

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  • Carle Place, NY 516-334-2300

    Formed Plastics specializes in the custom fabrication of vacuum formed plastics and rotomolding. We also offer plastic thermoforming and pressure forming, as well as line bending. Formed Plastics also has a lighting products line. We serve industries such as medical, dental, machinery and more.

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Roto Moulders Industry Information

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.

Quick links to Roto Moulders Information

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.



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Roto Moulder Informational Video