BLOW MOLDING

During a blow molding process, a melted PVC compound in shape of a vertical tube (parison) is extruded between two halves of a mould. This tube is inflated with air so it acquires the shape of the mould. The tube is cooled and when the recipient is totally formed, it is demolded.

For bigger recipients, the melted polymer must be extruded quickly so it is not deformed due to gravity. This is called alternate extrusion, because usually only one or two recipients are formed during each machine cycle.

For smaller recipients, like flasks for milk products and juices, there are machines that can manufacture up to 16 recipients each time. This enables the processing of high quantities of pieces to supply the broad demand from the industry.

All Content Product Recommended

SolVin® 258RG

SolVin® 263RB