Rotational moulding is a manufacturing process for thermoplastic materials that allows hollow articles to be produced of any shape or size. It technology is particularly suited for use in the production of small series of articles, even geometrically complex ones, particularly of large size and hollow articles. The process began to be used typically for containers, taking advantage of the fact that hollow articles could be produced without the subsequent need to weld or assemble. Applications have multiplied, thanks to the continuing development of research applied to the polymers used in the process.
The rotational molding process uses biaxial rotation and high temperature to fill the mold and form the plastic part or component. The rotomolding process is ideal to produce large, hollow, one-piece parts.
Below are shots of ROTOINVENT’s rotomolding process