Plastic waste bin ECOBELL 2500

crane-liftrecycling

Colored glass and plastic bell jars | Roplast srl: A niche technology, rotational molding has technical characteristics that make it the protagonist of the production of small batches and large hollow bodies. Spread throughout the world with strong growth rates, it is particularly appreciated by planners and designers. Lo rotational molding - also known as rotomoulding – is a technology for processing plastic materials at low pressure and high temperature, based on the adhesion of plastic materials to rotating hollow moulds. Rotational molding is used for the production of hollow bodies, which do not require subsequent welding and assembly phases and are practically tension-free. The phases of the rotational molding process Production of bells for the collection of glass, plastic and multi-materials: Le phases of a rotational molding process are the following: loading the mold with polymeric material, mostly in fine powder, but also in granules or liquid form; the mould, once loaded and closed, is heated (for example in an oven) and rotated along one or two axes, so that the polymeric material introduced into it can adhere to the walls of the mold itself, taking on its shape. It is very important to correctly manage the times of this heating and rotation phase: if heated for too long, in fact, the polymeric material could degrade; on the other hand, too short times could have the consequence of obtaining a plastic material that is not sufficiently homogeneous;