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…
Leading Manufacturers
Roto Dynamics Inc.
Orange, CA | 877-768-6585As 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!
Sherman Roto Tank
Pearland, TX | 281-648-0909We 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.
Fibertech, Inc.
Elberfeld, IN | 800-304-4600We 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.
Sterling Technologies, Inc.
Lake City, PA | 814-774-2500Sterling Technologies manufactures a diversity of rotational molded products. Our affordable components are strong, durable, and have a high impact tolerance. We serve a multitude of industries such as warehouse, produce & food processing, paper, electronics, aerospace, and many more. Contact us today and tell us what we can do for you!
ASH Industries
Lafayette, LA | 800-598-2774ASH Industries is a manufacturer of injection molded plastic components and a producer of molds. We process a vast selection of injection moldable materials; vinyl and vinyl ester, thermoplastic elastomers, styrenics, polymide, polyolefins, phenolic and liquid crystal polymers.
Rotomolded Products - Fibertech, Inc.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 - 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.