About Rotational Molding

Rotational Molding vs. Other Molding

Rotational molding offers many benefits over other types of molding such as injection molding, blow molding and thermo-forming:

Greater design flexibility
Rotationally molded pieces can be designed and manufactured to fit just about any space available. Often parts that are assembled from multiple pieces can be consolidated into one rotomolded part. That improves design possibilities. And the fewer parts, the fewer chances for part failure.

Dramatic cost savings
Because there is no interior core to manufacture, tooling for rotational molding parts is less expensive than tooling for other types of molding. When compared to most durable metals, plastics are substantially more cost effective.

Consistent wall thickness
Traditionally, metal components are weakest at the corners - the exact areas where the parts endure the most stress. With injection molding or blow molding, it's difficult to achieve total consistency in wall thickness. With rotomolding, the constant rotation allows the resin to coat every surface evenly.

Superior strength
A number of factors contribute to the superior strength of rotomolded parts: durable new plastics, consistent wall thicknesses, one-part construction and corrosion-resistance.

Shorter production times
We can usually design the piece, tool it and begin production in fewer than 3 months. Compare that to the minimum lead time of 6 months for injection molding, and it's easy to see that rotomolding brings your finished product to market dramatically sooner.

Easier to modify
Because of the relative simplicity of the tooling, minor alterations can be made to an existing mold to accommodate your changing production needs.

Ability to do small runs
With less expensive tooling, rotomolding makes it possible to do smaller runs on products. In fact, many of our customers find it economical to do runs as small as 10 pieces.

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Benefits of Plastic

Look around and see all the plastic parts you see in use every day: car components, juice bottles, football helmets, even the computer you're currently working on. Plastic technology has advanced dramatically in the past few decades, creating materials that have the following benefits:

Corrosion resistance
Simply put, plastic cannot rust. Even stainless steel products are susceptible to rust in welded spots.

Chemical resistance
Plastic can withstand various chemical components, making it a perfect solution for tanks and other containers. Plastics can also be engineered to be static-resistant, fire-resistant and weather-resistant.

Durability
Plastic parts are extremely impact resistant and do not dent. Parts can also be reinforced with inserts in high-stress areas.

Economical
It takes less fuel to operate equipment with plastic parts because plastic is lighter weight than metal. Plastic is typically less expensive than metal. And because rotomolding easily allows for one-piece construction, assembly times - and therefore assembly costs - are reduced.

Aesthetics
With rotomolding, a wide range of colors is available. Because the color is solid throughout the piece, there's no unsightly chipping of color. Rotomolding also gives you the option of including a color logo right on the molded piece, which means your logo cannot peel or flake away. And because rotomolding allows greater control over the design, you can address the style of the part along with its function.

Safety
Rotomolding plastic eliminates sharp corners and burrs and results in a smooth, seamless product. This reduces injury risks for operators. And because rotomolding allows more control over the design, more ergonomic parts can be created.

One-part construction
It's a known fact that the more components there are in a part, the greater the risk for breakdowns and problems. Using plastic means you can form one part rather than welding together various metal pieces, resulting in greater durability and a longer-lasting product.