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Rotomolded Products

A reliable source for Rotationally Molded Plastic information and leading Rotationally Molded Plastic Companies & Suppliers.

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. Read More…

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. Rotational molded plastics are subjected to high heat and therefore must exhibit good thermal stability.
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Leading Manufacturers

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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Roto Dynamics Inc. $$$

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.

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Sherman Roto Tank $$$

Ootsburg, WI  |  920-564-3633

In business since 1967, Dutchland is one of the top 5 manufacturers of custom rotational molded plastic products in North America. Whether it’s the size of your plastic product or the need to scale your production quickly, Dutchland gives your company the ability to Go BIG.

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Dutchland $$$

Rochester, IN  |  800-633-9173

RRM is a manufacturer of Rotationally Molded products, as well as a custom mold builder. Recently we have focused on advanced and innovative designs for our own proprietary products as well as for our custom products. These solutions are developed in order to add quality, value, and integrity to the products that we produce. RRM has been involved in the process of rotational molding since1988.

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Rochester Rotational Molding, Inc. $$$

Fountain, CO  |  719-382-9300

RMB Products offers custom plastic fabrication using thermoplastics. We perform the plastic machining as well. Some of the plastic parts we have produced include hydraulic reservoirs, pressure dispense vessels, sump tanks, process vessels and plastic tanks.

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RMB Products $$$
placeholder image Roto Dynamics Inc. Sherman Roto Tank Dutchland Rochester Rotational Molding, Inc. RMB Products

Rotomolded products are found in many different industries including: the sporting goods, marine, materials handling, packaging, office, school, recreation, toy manufacturing, medical, construction, plumbing, agricultural, automotive, promotional/display, road safety and furniture industries. Many different containers are rotomolded, including plastic tanks, cases, packaging containers, bins and trash cans. Other products include doll parts, lawn ornaments, road cones, kayaks, playground slides, outdoor chairs, footballs, sleds, pipe fittings, hoppers and plastic planters.

Rotomolded Products Rotomolded Products - Fibertech, Inc.

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. 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, like welding, where parts are attached, or cutting, to add openings and holes. After the plastic has been cleaned and polished, it is ready to be shipped.

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