About Plastic Rotational Moulding

About Plastic Rotational Moulding

The process of rotational moulding begins by selecting the required mould and fixing it in place.  A carefully measured amount of plastic powder is poured slowly into each rotary mould.   As the mould warms, the powder melts and turns to liquid which sticks to the sides of the mould. By continuously rotating on different axes, the liquid plastic is spread evenly, ensuring a uniform thickness throughout the product. The mould is cooled slowly as it continues to rotate.  Once the product is cold, it shrinks slightly away from the metal mould, which can be opened to reveal the finished item.

Whilst the process of rotational moulding is quite labour intensive, it s a relatively low cost option which produces quality products with little waste. A wide range of products can be made using the rotational moulding method, both for the home and for specialist engineering or industrial products.

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