ABOUT Rotational Molding
Technology Rotomolding (Rotational Molding) Services are plastic molding services which use a zero pressure process for producing hollow products. Resin, loaded into a closed mold, is heated as the mold slowly rotates on two perpendicular axes. The resin adheres to the mold surface, coating the surface evenly. The mold continues to rotate while it is being cooled, maintaining even wall thickness. Rotomolding is a fairly economical process for producing large hollow objects such as tanks, ice chests, etc.Can produce thicker walls than either blowmolding or injection moldingSuited to low volume, high value productsPressureless process makes tooling economicalExterior corners are strong and stress free
Advantages: Rotomolding services are able to produce large shapes that have few details on their surfaces.
Limitations of Rotomolding ServicesCycle times are relatively slow, cooling times longMaterials more costly due to need for additives and ground powdersLimited material choicesRibs, etc. are difficult to produce
Applications: Rotomolding services are particularly suited to producing large, shell like objects with thick structural walls and reinforcing ribs. Fuel tanksCoolersKayaks