© Copyright Quest Industries Ltd How does the rotomolding process work? The rotational molding process starts with a quality machined, cast or fabricated mold. The mold is placed in a rotomolding machine that has a loading, heating, staging and cooling area. Several molds are placed on the machine at the same time. Pre-measured plastic resin is loaded into each mold, then the molds are moved into the oven where they are slowly rotated on both the vertical and horizontal axis. The melting resin sticks to the hot mold and coats every surface evenly. The mold continues to rotate during the cooling cycle so the parts retain a uniform wall thickness, if that is desired. Once the parts are cooled, they are released from the mold. The rotational speed, heating and cooling times are all controlled throughout the process and may be adjusted based on the design of the product. | | | | |