Rotomolded Products

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

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.

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. $$$

Richmond, BC  |  604-271-1324

Molded plastic tanks are one of the items that Century Plastics Ltd. manufactures. We offer water tanks, bins, and totes for storage and merchandising. Our vertical poly tanks range from 5 gallons - 2400 gallons and are used for battery boxes, recycling bins, potable water tanks and more.

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Century Plastics Ltd. $$$

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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Sherman Roto Tank $$$

Decorah, IA  |  563-382-9636

IRP’s rotational molding is the cost-effective, long-life solution to other forms of molding. When considering any custom molding project for your business, accept no substitutes. We’ve become known for our wide range of products, best-in-class service and a strong commitment to customer satisfaction. Call Iowa Rotocast Plastics today and find out how they can increase your sales tomorrow.

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Iowa Rotocast Plastics, Inc. $$$

Claremore, OK  |  800-825-3379

Need a custom rotationally molded plastic product? RotoMold USA produces items via rotational molding and performs product design, assists with mold manufacturing and mold maintenance, does quality testing and other services. We’ve done rotomolding for gas and oil, water recreation plus airline industries.

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RotoMold USA $$$
placeholder image Roto Dynamics Inc. Century Plastics Ltd. Sherman Roto Tank Iowa Rotocast Plastics, Inc. RotoMold USA

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.

Rotomolded Products Informational Video