The general principle
In the rotational moulding process, a defined quantity of material is loaded into a mould. During heating, the mould rotates around multiple axes; cooling and demoulding then follow.
This description is intentionally general. Temperatures, times, speeds, material and equipment depend on the product and are not presented here as operating parameters.
The four indicative stages
The cycle can be described in four main stages, which must always be interpreted in relation to the project.
- Loading the material into the mould
- Heating and controlled rotation
- Cooling the moulded part
- Opening the mould and demoulding
From the principle to manufacturability
Understanding the principle is not enough to establish manufacturability. Geometry, undercuts, openings, tolerances, finishes, tooling and volumes require a dedicated review.

