PVC bottle Model #: PVC00028

All of Century Packagings technicians are educated and trained to carefully inspect for any flaws that may occur during production as well

This step is the most important to us. Even after a perfect molding process some bottles can have extra plastic or imperfections. The finishing area is where each bottle is examined by hand and trimmed of excess plastic if needed.

Once complete, the machine releases the newly formed bottle onto a conveyor destined for packing.

Once a preform and mold are selected and installed in the machine the preform is loaded in the machine and transported to a infrared oven, which heats the preform to the desired temperature. Then the preform is transported to the mold where the mold closes on the perform and a stretch rod stretches the perform. At the same time, high pressure air is introduced to stretch the preform to the shape of the mold and holds the plastic against the water cooled mold cavity to solidify and cool the plastic to the final shape. 

Reheat stretch blow molding starts with what is called a "preform" with a specific weight and neck finish.

Reheat Stretch Blow Molding

Next, the mold closes on the parison and uses air pressure to blow it into the shape of the mold  and holds the plastic against the water cooled mold cavity to solidify and cool the plastic to the final shape.  Once complete, the machine releases the newly formed bottle onto a conveyor destined for the finishing area.

In an extruder, heat is introduced and the pellets are melted and mixed with a desired color if needed. Once blended, the machines extrudes the plastic in to a suitable sized parison required for the mold to capture and continue the blow moulding process.

Our plastic products come to us in the form of tiny pellets. These pellets are fed into the blow molding machines using a sophisticated vacuum system.

Extrusion Blow Molding

Century Packaging Ltd. uses state-of-the-art extrusion blow molding and reheat stretch blow molding machines. Our experienced technicians set up each machine according to our customer's specifications. This set up includes installing the specified mold, plastic and colour.