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Rotational Moulding Manufacturers and Companies

IQS Directory provides a detailed list of rotational moulding companies and suppliers. Find rotational moulding companies that can design, engineer, and manufacture rotational mouldings to your specifications. Peruse our website to review and discover top rotational moulding companies with roll over ads and complete product descriptions. Connect with the rotational moulding 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 open flame rotational moulding, plastic rotational moulding, and rotational moulding balls of every type, IQS is the premier source for you.

  • Orange, CA

    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

    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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  • Winfield, KS

    No 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!

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  • Elberfeld, IN

    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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  • Lake Mills, WI

    At Horizon Manufacturing Group LLC, we pride ourselves on being pioneers in the realm of rotational molding. We leverage cutting-edge technology to craft a diverse array of products that cater to a multitude of industries. Our core competency lies in the art and science of rotational molding, a process through which we transform raw materials into seamlessly designed, durable products. We excel in the creation of custom rotational molded solutions that meet the unique needs of our clients.

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  • Grassie, ON

    Agri-Plastics Custom Rotomolding produces quality, rotomolded parts with only the highest quality aluminum metal molds. At our facility, we develop and test our products through hands-on experience. Our mission is to offer the best quality plastic products by designing solutions that meet our customers’ expectations, while establishing a worldwide reputation for reliability and durability.

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Rotational Moulding Industry Information

Rotational Moulding

Rotational moulding is a plastic forming process used to create hollow plastic products. Rotational moulding is also sometimes referred to as rotomolding, roto moulding, plastic rotational molding, and some other names. Like other plastic forming processes like extrusion and injection molding, rotational molding involves the heating of plastic beyond its melting point in order to shape the plastic into a useful product.

Quick links to Rotational Moulding Information

Applications of Rotational Moulding

Although extrusion and injection molding are similar on many levels, rotational moulding is among the most distinct plastic shaping processes. The process is used to create hollow, often large plastic products like tanks and even light watercraft hulls.

Rotational moulding can also be used to create small plastic products in large quantities. Some examples of those products are:

  • Sporting Equipment
  • Plastic Construction Indicators
  • Trash Collection Bins
  • Garden Flamingos

Industries Using Rotational Moulding

A wide variety of industries make use of rotationally moulded plastics. The construction industry, manufacturers, warehouses, and many other operations require rotationally moulded plastic products for many purposes. Rotomolded products are also widely used in commercial contexts and in consumer products markets. Rotational moulding is valued because of the consistency with which it can shape plastic products and its aptitude for creating short product runs easily.

Principles of Rotational Moulding

A rotational moulding machine may seem elaborate, but its principle of operation is quite simple. A rotational moulder involves a mold, a heat source, a collection of raw plastic, mold movement machinery, and cooling equipment.

At the beginning of the process, raw plastic material is loaded into a half-constructed hollow mold.
Once the plastic is loaded in, the mold halves are joined together, sealing the plastic inside.
The mold is then heated, causing the plastic to become molten.
Many plastics, when molten, are easily formed and will keep their shape upon cooling.
Such plastic varieties are called thermoplastics and include polyethylene of high and low densities, PET, PVC, and many other materials. In order for the molten plastic to take the shape of the mold, the mold is rotated by arms or other equipment that causes the molten plastic to come into contact with all of the surfaces of the mold.
Once the plastic has coated the mold, the rotation slows, and the mold is subject to a cooling process.
Once cooled, the plastic is ejected from the mold as a newly rotationally molded plastic product.
If necessary, the product can be sent for further processing like cutting and painting, or it can be prepared for shipment to customers.


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Rotational Moulding Informational Video