What is Rotational Molding (Rotomolding)?

Rotomolding or Rotational Molding is also called spin-casting or roto-casting and is a process for molding (moulding) many types of hollow centered items generally made out of plastic.  Empty or hollow molds are filled with the desired material and then rotated slowly and heated

Rotational Molding Process – Courtesy Laurens VanLieshout

allowing the material or shot to be dispersed and softened until it is forced out onto the mold surface to form the desired product. This process was first used in the 1950′s and has since been perfected and enhanced over the years to allow for larger molds and many different types of materials for various specific applications.