Rotational moulding involves a heated hollow mould that is filled with a charge or shot weight of material. It is then slowly rotated (usually around two perpendicular axes), causing the softened material to disperse and stick to the walls of the mould. To maintain even thickness throughout the part, the mould continues to rotate at all times during the heating phase and to avoid sagging or deformation also during the cooling phase.

SVS Pipe Industries has installed state-of-the-art plants, which are one of their kind in the sub-continent, encompassing the complete process in-house, from extrusion and pulverization to roto-moulding on bi-axial roto-moulding machines.