Hence we try to plan the production process as closely as possible to the delivery date to allow just-in-time delivery, which further allows our warehouse facilities to be used as efficiently and effectively as possible. The PET preforms- and bottles are produced individually for every one of our customers and only on demand.
Logistics: The right preform/bottle at the right time After the stretch blow molding, the PET bottles are transported to the palletizer using an air conveyer segment, where they are stacked and foiled. This process simultaneously cools the preform. Through clean and cool compressed air, the heated up preform is lengthened and widened until it fully fills the negative shape. Once this temperature is reached, the preform is handed over into a negative shape that holds the design of the actual bottle. How does a PET preform turn into the actual bottle?įirst, the PET preforms are heated up again until a temperature of 110☌ is reached. State-of-the-art engineering combined with decades of development guarantee a high quality end product. However, for customers that do not have the possibility or necessary facilities to do so, we offer to take over this step and inflate the bottles using our own stretch blow machine.
The majority of our customers independently execute the production step from the PET preform to the bottle. After one cycle is completed, the preforms are taken off the injection molding tool and further cooled down in a cooling station before getting packaged and being made ready for transport. If the preforms cool down too slowly, they turn milky and cannot be further processed. The cooling process of the preforms is highly important already during the injection molding phase as this prevents the preform from crystallization. In this process, between 32 and 96 preforms are produced in every cycle, depending on which tool is used. The plasticized material is injected into a preform tool, which is cooled with 6☌ cold water. Only then it can be further processed to become a PET preform. This heating process is important as it enables the material to become a homogenous mixture in the first place. There it is heated until a temperature of 280☌ is reached. The pre-dried granulate is fed to the injection molding machine through another pipe system. After the pre-drying phase, the actual production starts. As soon as the material has fallen below a certain moisture content, it can be further processed. There it stays between 6 to 8 hours and is heated up by dry air (dew point – 30☌) until a temperature of 170☌ is reached. When production starts, the granulate is transported to the drying unit of the machine through a pipe system. There it is protected from rain and solar radiation. After the granulate has been delivered, it is stored in silo facilities until it is needed. The PET preforms are produced in our production premises in Reichersdorf using state-of-the-art injection molding machines. The first step consists of predrying, injection molding and cooling. The second step produces the final PET bottles using a stretch blow molder. As a first step, the PET granulate becomes the preform using state-of-the-art injection molding machines. The production of PET bottles is a split process that requires diligence as well as careful quality control. Come and join us, one of the leading Austrian producers, on the way through the production process Have you ever wondered how PET bottles are produced? Few consumers actually know where PET bottles come from and how they are made.
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