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The beverage gaint Coca-Cola has recently adopted
a radically new mould technology called SM X
from Metallamics Inc, Michigan, USA. SMX
indicating Shape Making heat exchangers moulds have 2-4 times greater
heat transfer coefficients than the conventional moulds. Increased
productivity, by 10-15%, is achieved through cycle reduction for
PET preforms. SMX
moulds do not have cooling channels. The skin of the mould is supported
with a porous structure that permits turbulent flow of water. It
is claimed that SMX
moulds achieve surface temperatures accuracy within ±2°C
of the designed mould temperature
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