PETpla.net Insider 09 / 2011

PREFORM PRODUCTION 21 PET planet insider Vol. 12 No. 09/11 www.petpla.net The key innovation in the MHT- coolMAX is in the detail of the cooling plate, from which cooling pins pro- trude. It is water-cooled; air that flows through into the preforms therefore arrives significantly cooler than from uncooled plates. In the inner space of the preforms, this solution differs from other offers by its reversed coolant flow. The air initially brushes past on the preform wall toward the front and then arrives back through the inside of the cooling pins; this increases the cooling effect on the preform. In addition, the flow of coolant is divided directly after penetrating the preform and part of the air is directed to the inner space of the thread. The upgrade set is available for preforms up to a maximum water thread diameter of 30/25. MHT assumes the complete project management of the prototype pro- duction through to ramp-up to series production and guarantees a smooth- running changeover to the new number of cavities. The upgrade set is offered within the context of a mould exchange or conversion, such as to a different preform design or weight. After installation by an MHT service engineer, the company says that it becomes a simple matter of ‘plug & play’ for the preform producer – but with output one-third higher than before. Note: Husky and HyPET are reg- istered trademarks of Husky Injection Molding Systems, Ltd., with its head- quarters in Bolton / Canada. MHT Mold & Hotrunner Technology AG has no connection to Husky. www.mht-ag.com Take-out plate