Rotational Molding Plastic Parts
Rotational Molding, also called rotomolding or rotocast, is a thermoplastic process for producing hollow parts by placing powder or liquid resin into a hollow mold and then rotating that tool bi-axially in an oven until the resin melts and coats the inside of the mold cavity. Next the tool is cooled and the part is removed from the mold.
Four steps in manufacturing a rotational molded part
1. Fill the mold with a polymer material
2. Heat tool in oven to melt material
3. Cool tool to solidifies the part
4. Remove part from the tools