Advantages of Rotational Plastic Molding

rotomolding plastic partsIn today’s world of plastic manufacturing, the rotational plastic molding process is commonly used in many of the different plastic items being manufactured. You can find it, in such things as water-tight and air-tight items, water storage tanks, in marine parts, along with industrial and commercial products. Many inventors and product designers select the rotomolding process because of its cost-effectiveness and its ability to produce plastic items in reduced volumes.

Rotational molding is a low-pressure technique that has been around over a 100 years. Since then it has developed into one of the most affordable customized plastic molding methods readily available. This whole process begins when a polymer powder is positioned right into the mold on two vertical axes. The mold is then closed and the rotation starts. The turning continues throughout the entire process of the initial heating and then on into the cooling of the plastic inside.

Unlike numerous other plastic moulding methods, roto-molding produces a much more sturdy and flexible item, with a smooth surface and a consistent wall density. This molding process distributes more of the plastic resin into the outer corners and sides of the mold than other molding method.Also the material isn’t stressed as much during the rotational molding procedure,which in turn makes the finished product more stable and more flexible. This creates a lot less risk to the possibility of fractures in the plastic item itself.

Rotational plastic molding is quick, efficient, and makes strong, uniform, and trouble-free items. Parts that once were made from setting up multiple items together can now be built as one component. Also, a prefinished piece of plastic or metal part could be included in the mold prior to the polymer being added in. Thus, when the rotational molding manufacturing is finished, you have one solid, unified piece.

Advantages of Injection Molding

Injection molding does have its place. In this process, the plastic resin is specifically injected into the mold and left there to solidify until the process is finished. Injection molding is mostly used in producing unhallowed items.

There are benefits to this technique. Whereas the low-pressure rotomolding procedure does not enable for fine specification, the high-pressure injection molding is able to develop high-detailed pieces. In Injection molding if the part can be made to begin then the mold can be created. Despite the high initial time and also large investment required to produce the initial mold, injection molding permits for quicker, low expense, automation


To boil it down, although injection molding allows for the swift mass-production of basic parts, rotational plastic molding produces high top quality adjustable components– even in reduced quantities– that are strong, consistent, and stress-free. For more information  or to get a quote, contact us at R & R Technologies LLC, 7560 East County Line Road, Edinburgh, IN 46124, or call: (812) 526-2655