Some of the Things You May Want to Know About Plastic Rotational Molding as a Manufacturing Process

Some of the Things You May Want to Know About Plastic Rotational Molding as a Manufacturing Process

9 June 2021
 Categories: Industrial & Manufacturing, Blog


Plastic rotational molding might be something that you have heard of. Whether you have been researching different plastic manufacturing processes that you can use in your business or if you have been looking into services that other companies might offer. If you're interested in how plastic items are made and worked with, then you may want to know the following things about plastic rotational molding.

It's Usually Used to Make Hollow Objects

Unlike techniques that involve making plastic items with more traditional molds, which often results in solid plastic items, plastic rotational molding is a technique that is most commonly used when you want to make products that are going to be hollow in the middle.

The Mold is Typically Heated

For almost any processes that involve molds, the molds are used at room temperature. However, with plastic rotational molding, the mold is typically heated. Temperatures are typically high enough to make the rotational molding process work easier, but they are kept from getting so high that the plastic that is being worked gets burnt or completely melted.

Plastic Material is Softened

Typically, when people apply this technique, soft plastic is commonly used. However, the plastic is not actually melted down, unlike when melted plastic material is used in traditional molds. Instead, the softened plastic is typically soft enough to make it pliable so that it will separate when it comes in contact with the warmed rotating mold.

Rotation is Used

Of course, as you can probably imagine, with this technique, the mold itself is typically rotated. Rotation should happen at a steady, slow, and consistent rate. This helps with getting the best and most consistent results.

It Produces a Nice Finish

Plastic rotational molding is a technique that is commonly used when products need to have a nice, smooth, high-quality finish. This is because the rotational technique that is used can leave behind this finish, as long as the right material is used and as long as the technique is used properly. Of course, depending on the item that is being made, additional finishing does sometimes have to be done in order for the desired results to be achieved.

As you can see, plastic rotational molding as a manufacturing process can be quite interesting, since it can be a bit different from some of the other techniques that are used. Therefore, it might be an option that you will want to explore. Whether you will be using the technique in your own facility or hiring another shop to do the work for you, you can make hollow items.

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