TECHNOLOGY, AUTOMATION, PRECISION AND CONTINUOUS CONTROL FOR GUARANTEED FLAWLESS PET AND R-PET PREFORMS
A COMPLETE AND ORGANISED PRODUCTION PROCESS
01 STORAGE AND TRANSPORT OF RAW MATERIALS
The polymer is transported in a tanker and, when it reaches the factory, it is taken to storage silos from where it can be collected in accordance with production needs.
02 TRANSPORT AND MIXING OF POLYMERS
The material is sent to the mixing unit using a pneumatic system. Valgroup uses a blend of virgin and recycled polymers to produce PET preforms.
In order to be manufactured correctly, the PET must undergo a drying process as it naturally absorbs humidity from the atmosphere. It is thus heated and cooled with a jet of air at around 170°C.
After it has dried, the PET is transported to the injection room through a screw. The material is heated up during this stage and moves from a solid state into a liquid one, ready to be moulded into PET preforms.
The molten PET is injected to fill all the cavities in the mould. The PET cools and solidifies when it comes into contact with the mould to bring the PET preform to life.
06 QUALITY CONTROL
Valgroup’s machines are equipped with on-line controls, thanks to which it is possible to check production to guarantee the highest quality and discard defective preforms. Off-line, a team of experts inspect the technical characteristics of all the preforms and their material.
To guarantee the highest level of hygienic safety, the preforms are collected automatically and packaged in octabins where they are kept in a polyethylene bag with a seal of guarantee.
08 TRANSPORT TO THE WAREHOUSE
A completely automated system picks up the boxes from the production line. It delivers them to an automatic transport system that takes them to the two warehouses, which are able to store a total of 25,000 boxes of PET preforms.
LGVs pick up the boxes from the warehouses and line them up on the loading platform. The PET preforms are then ready to be shipped and delivered.