An upgrade to the third generation of Sipa’s XFORM 500 preform injection moulding system is enabling the mould cold half to stay out even longer between pitstops.
Until now, Gen3 third-generation cold halves on the 500-tonne system, which was launched in 2012, were guaranteed to run for eight million cycles before maintenance was recommended to ensure that there was never any flash over 0.2mm. This was due to the presence of a LongLife surface treatment and a strong mould structure with low deformation and good precision, as well as optimised cooling.
Now the guarantee is close to 40 per cent higher, at 11 million cycles, claims the company. Speaking to Plastics in Packaging, global sales director of Preform Systems & Tooling at Sipa, Stefano Baldassar, said: “This increased mould lifespan is due to a superior HR design, new-generation stack pre-alignment system and of course the proven robustness of the clamp design.”
The XFORM 500 is capable of running with preform moulds holding up to 180 cavities, which means that between one refurbishment and the next, the system can produce almost two billion preforms. In addition, energy consumption is less than 220 Watts for every kilo of PET consumed.