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.

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  • The Undeniable Strength of Rotational Molding

    Rotational Moulding If plastics make the world go round, then rotational molding makes the world spin even faster. Rotationally molded plastics are an ever-present aspect of our daily lives, from the gas can you keep in your garage for your lawnmower, to the giant tanks of water you see on the backs of semi-trucks, rotationally molded plastics are a staple of those products that make our lives easier. One question you may stop to ask yourself is, why plastic? Or, a more specific question, why rotationally molded plastic? There is...

  • A Lesson In Courtship

    Rotational Moulding When I was in college, I dated a guy that told me (quite proudly) that his dad owned the company that made all of the orange traffic cones used on the roads during construction. I'm not sure if this young man was trying to impress me, but unfortunately for him it did quite the opposite. Anyone who lives near a major city knows that summer is the dreaded construction season and slightly takes away from the joy of sunny skies and warm weather. Just the site of those...

  • MOD Custom Rotomolding: Rotational Molding Pioneers

    MOD Custom Rotomolding manufactures custom molded, plastic parts and products. Founded in the 1930's, the company is a founding member of the Association of Rotational Molders International and has earned many awards recognizing excellence in design, quality and ingenuity. Headquartered in Ashtabula, Ohio, the company specializes in converting metal, fiberglass, wood, and other parts and products into rotationally molded plastic designs. This highly successful company was the first rotomolder in North America to purchase the automated Leonardo rotational molding system for impressive part to part consistency, quality and production speed....

  • Rotational Moulding Manufacturers' Production Stages

    One of the things we haven't gone over yet in any of the earlier posts about the rotational molding process is that the process often involves several individual stages. I've sort of covered what's involved in each of those stages in earlier posts, but not in detail. In order to understand how the rotational molding process works, you have to understand these stages and what happens during each of them. I've included a short video and an image to better acquaint people with the process and the individual stages in...

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, rotomoulding, 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.

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. Sporting equipment, plastic construction indicators like cones and pylons, trash collection bins and even garden flamingos can all be produced by rotational moulding processes. 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.

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.

Rotational Moulding
Rotational Moulding - Roto Dynamics Inc.

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