Profile: KSB Rotational Mould Products specializes in offering a wide range of precision engineered products. We supply rotational molding products like rotational molding aluminum tool, roto bumper, automobile bumpers (roto molding) and customized roto tool. Rotational molding, also called roto molding or rotocast, is a thermoplastic process for producing hollow parts by placing powdered resin into a hollow mold and then rotating that mold bi-axially in an oven until the resin melts and coats the inside of the mold. The mold is then cooled and the part is removed from the mold. Rotational molding can produce small to large and simple to complex parts.