Rotational molding is also called as rotocasting or rotomolding. This process is mainly used for producing hollow components and products such as toys, fuel tanks, kayaks, and also auto parts.
Rotational molding starts when the ground plastic resin is fed into the molds which are rotated on two axes at high temperature. When the plastic melts, it will be pressed against the hot walls in the mold. In this mold, the melted plastic will be formed into the final products. There are some benefits you can take from rotational molding.
Rotational molding can be designed flexibly into the incorporate contours, metal inserts, flanges, and detail logos. It can also result the seamless product such as tanks since the molten plastic is transformed into the final product with one step. With this molding process, you will be able to produce some different components at the same time. It helps you reduce the production cost.
This process is very flexible for your product manufacturing. You can change the colors of your product easily and quickly. This process allows you to add the pigments and dyes to plastic resins any time before they are fed to the mold so that you don’t need to clear out the lines for changing the colors. You can also add other additives such as the ultraviolet light inhibitors which can maintain the consistency of the color in the sun.
Rotomolding can also create the product with consistent wall thickness since the plastic is pressed by the same centrifugal forces so that the plastic will be applied uniformly. Instead of uniform thickness, this molding process can also create the product with virtually stress-free. It has no thin areas which is susceptible to break or burst during use. With this consistency, this is also able to produce strong finished product.
Another benefit is the low cost. The tool and equipment for this molding process is available at low cost since they don’t have to be able to withstand with the high pressure so that you can save the money. Compared to another molding process, rotational molding can be easily designed and built. It allows you to run your production at low cost.