IQS NEWSROOM

Casting materials is done in a variety of ways, though the most common method is done with a die, where the material to be molded is poured into the die and the die then presses the material into its intended shape. Another means manufacturers will use to cast metal is the rotational molding method.The way rotational molding works is rather simple: the mold is filled with the material it will shape, such as aluminum, and then it rotates. The mold itself is heated, so over the duration of the slow rotations, the metal heats up and begins pressing into the shape of the mold. While not as popular as other casting methods such as injection molding, rotational molding companies employ the rotational molding method because it does have certain advantages over more commonly used molding processes.

I’m sure most of you are well versed in what rotational molding is, even if you don’t quite know it yet. Rotational molding is what makes things like kayaks possible. Besides the obvious fun benefits that come from rotationally molded products, they also have a long list of benefits that occur in the manufacturing side of things. Rotational molding manufacturers have long been aware of the benefits of using rotational molding to create products.

It’s easy to grasp how the rotomolding process works. An open casting is made, plastic is inserted, the casting is closed, the plastic is melted, the casting is rotated, the plastic forms around the contours of the casting, the plastic cools, the casting is opened, the product is finished. Simple, right? Well, maybe. Goodness knows if someone told me, “Make a rotomolding casting!” I wouldn’t know where or how to start. But I don’t want to talk about the actual molding part of rotomolding in this post. I want to talk about how all of those specializations – the imprinting of text, texturing, dimpling and other surface embellishments – come into being during the rotational molding process.