PETpla.net Insider 09 / 2011

BOTTLE MAKING 27 PET planet insider Vol. 12 No. 09/11 www.petpla.net 1 2 3 + 5 4 1 2 3 5 4 Aoki Nissei ASB 3 2 4 5 1 1 1 3 2 4 5 Sipa The typical Aoki series is on the basis of three stations, namely for preform injection and direct heat conditioning, stretch blow moulding and product ejection. Heat energy is retained in the preform after injec- tion moulding and final containers are stretch blown straight away – without reheating. With the result: energy savings of between 10 and 20% and reduction of cost per container can be achieved – according to Aoki. The typical Nissei ASB series is on the basis of four stations, adding to the above three stations a preform temperature conditioning station. This fourth station, according to ASB, is to take care of varying conditions (sensi- tive injection filling speed and preform cooling) and thus to ensure beyond doubt consistency of the entire single stage moulding process – according to Nissei ASB. The typical Sipa single stage series – FX series for instance - has on the injection side one large plasticising unit, pro- viding four shot pots and from there four rows of cavities – two on each sides. After injection moulding the preforms are automatically transferred into two temperature conditioning stations on each side, thereafter blown and transferred out.    1 Injection unit 2 + 3 Preform moulding / conditiong in one step 4 Stretch blow moulding 5 Bottle ejection 1 Injection unit 2 Preform moulding 3 Conditioning 4 Stretch blow moulding 5 Bottle ejection 1 Plastifying unit + 4 shot pots 2 Preform moulding 3 Conditioning 4 Stretch blow moulding 5 Bottle ejection