Customized Rotationally Molded Plastic Part Rotomolded Components

Customized Rotationally Molded Plastic Parts

There are plenty of ways of manufacturing hollow objects using plastic and rotational molding (or rotomolding) is probably one of the most affordable and efficient methods at our disposal.

Rotational molding (or rotomolding) is a manufacturing technology that has improved significantly over the last 20 years, and every day more and more companies are utilizing this multifunctional process. It is used mainly for producing hollow parts by adding plastic powder to a shell-like mold, and then rotating and heating it at the same time. During this process, the powder fuses into a bubble-free liquid layer that takes the form of the inner mold surface. The mass is then cooled and the hollow part is removed. This process is quite often used for the manufacturing of tanks, but it can also be used for
making complex medical products, toys, leisure craft, and much much more.

Most materials that are used in rotational molding are from the polyethylene group (about 80%), with the most common among them being:
* Cross-linked polyethylene (PEX)
* Low-density polyethylene (LDPE)
* Linear low-density polyethylene (LLDPE)
* High-density polyethylene (HDPE)

Rotomolding is mainly used for making industrial tanks and containers. A full list of other applications can be found below:
* Septic tanks
* Chemical storage tanks
* Oil tanks
* Fuel tanks
* Water treatment tanks
* Shipping tanks
* Traffic signs
* Containers
* Toys and Leisure
* Materials Handling
* Marine Industry