Rotational molding, also known as rotomolding, rotocasting or spin casting, is a process for creating many kinds of mostly hollow items A heated hollow mold is filled with a charge or shot weight of material, it is then slowly rotated  around two perpendicular axes, causing the softened material to disperse and stick to the walls of the mold. In order to maintain even thickness throughout the part, the mold continues to rotate at all times during the heating phase and to avoid sagging or deformation also during the cooling phase.

We are able to mold very large or small parts in any color. The flexibility of the process allows complex shapes to be molded easily. Because the plastic builds up inside the cavity gradually, rotomolding manufactures very strong and durable plastic parts. 

Seljan can take you from an idea to a finished part very quickly. We start with a 3D Solidworks™ model. After we meet your design expectations our inhouse mold department takes over. In most cases we are able to get your new tool ready for production in 4-5 weeks.