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2021

Rotomolding of Plastics – How It Is Done

Rotomolding of plastics is a process that is commonly used in the manufacture of different products that we use on a daily basis. Some of these products include canoes, playground equipment, kayaks, refuse containers and water tanks. Also known as rotomolding, the process is very important in the manufacture of tough plastic products.

In the past, rotomolding was a very rare process. However, as technology advanced, the process became simple and more widespread. As a result, the application has been adopted by many industries around the world.

How does rotomolding happen? 

Rotomolding is normally done using plastics of the polyethylene family. On the other hand, you can use nylon, polypropylene and PVC. Rotational molding is called as such because the mold rotates in two axes. With this, the plastic is evenly spread throughout the mold causing the product to come out with uniform thickness. Also, the manufacturer is able to determine the strength and weight of the end product by placing a predetermined mount of plastic into the mold. He then heats it to its melting point while rotating the mold so that the plastic can stick onto its surfaces. 

What kind of mold is required? 

In the Rotomolding of plastics, there are many types of molds that are required in the process. This depends on the type of product that you want to produce. When you are looking at a product such as a water tank, the fit and finish need to be exact. Therefore, you need to come up with a mold that meets certain specifications. However, rotational molding presents its own challenges when trying to fill highly detailed areas. For example, it becomes difficult to fill corners since Rotomolding process uses low pressure and high temperature. Visit grangerplastics.com for more detailed information on rotomolding of plastics. 

What is the future of Rotomolding? 

Rotomolding has a very bright future especially considering that products that are produced in the process will be needed in many years to come. For example, garbage bins are here to stay and will remain so in the foreseeable future. You can also imagine children’s play ground without a plastic slide? The only thing that we can predict in the future is that Rotomolding products will be more profound as technology advances.  

Rotormolding is loved by many because it offers many benefits over other plastic manufacturing processes. For example, Rotomolding results in a stronger structure when compared to plastic products made from alternative processes. This is because it has no joints and the manufacturer can be able to predetermine the thickness of the material used. In addition, the use of polyethylene material makes the structure last long. This is because; the material is not affected by strong UV rays of the sun. You will also find that Rotomolding products are very light thereby enabling easy handling and transportation.

by Acadia86 on 2021-01-12 07:36:38