Advantages of Using Rotomolding in Manufacturing Processes


When it comes to creating plastic parts, there are multiple manufacturing processes to choose from. One of the most popular methods of production is rotational molding. Rotational molding, also known as rotomolding, is a manufacturing process that has been used for several years and is still in high demand. In this article, we will discuss all you need to know about rotational molding information, including its process, advantages, and various applications.

Process of Rotational Molding

Rotational molding is a manufacturing process that uses heat, rotation, and gravity to create hollow plastic parts. The process begins with the melting of plastic materials (such as polyethylene, polypropylene, or PVC) in a heated mold. The the mold is then rotated along two perpendicular axes while the molten resin is being poured into it, creating a uniform coating inside the mold. The molten resin is then allowed to cool and solidify, forming a finished product. A variety of shapes, sizes, and textures can be formed using this method.

Advantages of Rotational Molding

The rotational molding process has numerous advantages over other plastic manufacturing processes. One of the most significant benefits is that it can produce large hollow objects with no seams, joints, or welds, which can result in a more robust and durable finished product. Additionally, the process is cost-effective for producing small to medium quantities of plastic parts due to the relatively low cost of tooling and molds. Rotational molding is also an eco-friendly process that uses recyclable plastics, and the unused plastics can be reused in the next molding process.

Applications of Rotational Molding

Rotational molding has a wide range of applications in various industries. It is commonly used to produce large, hollow objects such as fuel tanks, playground equipment, kayaks, and water storage tanks. Rotational molding can also be used for other products, such as medical equipment, automotive parts, and waste containers.

Considerations for Rotational Molding

There are several important considerations to keep in mind when selecting a rotational molding manufacturer. Firstly, the manufacturer should have appropriate certifications and quality control procedures in place to ensure consistent and high-quality production. Secondly, one should consider the manufacturer’s equipment and tools like the molds and the equipment used for mold making. Communication in regards to delivery times, cost, and design specs is also crucial in any molding project to ensure a smooth production process.


Rotational molding is an excellent manufacturing process that produces high-quality, durable plastic parts using minimal waste and energy. The process has a wide range of applications, from producing large, hollow products to smaller applications such as medical equipment and waste containers. When considering a rotational molding manufacturer, it is essential to consider factors such as quality assurance process, equipment, and communication. With all these factors in check, you can unlock the amazing benefits of rotational molding.