Rotational molding is one of the fastest growing plastic making processes in the world today. As the name suggests, rotational molding machines are responsible for making these plastics. The machine consists of a heated hollow mold which is usually filled with a charge or shot of the material. The machine is then slowly rotated. This causes the soft material inside to disperse and stick to the walls of the machine uniformly.

In order to ensure even thickness, the molding machine is kept rotating at all times while heated and cooled. This ensures that there is no sagging or deformation during the cooling process.

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Rotomolding offers design possibilities that traditional plastic molding is incapable of producing.

Process

Although rotational molding is a simple idea, the machinery involved is quite complex and requires expertise in design and engineering to make each product successful.

Step 1 – A unique mold is created

Step 2 – The mold is filled with plastic in powder or pellet form

Step 3 – The mold is rotated along two axes or spun around inside of a large oven  so that the plastic covers each part of the mold uniformly

Step 4 – The mold continues to rotate is it cools from the oven and then the plastic product is removed

From idea to completion you would work with professional designers to perfect your product. Designers are responsible for creating the mold that will produce your final product. Many designers are also engineers and can implement more complex designs with precision. Some plastic products have moving parts or must be completed in phases or separate pieces in order to create the whole product. Rotational molding has the potential to create almost any product.

Products

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