Carousel Rotomoulding machines in China
Rotational molding does not involve pressure, which makes tooling less expensive than other types of molding. It is ideal for producing extensive parts since you can use the tooling in any size. There are few restrictions in terms of part design, allowing the designer to integrate complicated details.
Hundreds of years ago, ancient Egyptians created ceramics using rotational molding. In 1855 and 1910, the Swiss began producing artillery shells and hollow chocolate eggs using a rotational molding process that was more advanced than what the Egyptians used to create uniform wall thickness and density. Several patents documented the nature of this casting process during these periods. The process was criticized as slow, and it encountered several challenges, preventing its wide adoption.
