Unconventional cavity numbers for better output/capital ratio
Think about a “workhorse” 72-cavity mold: this is considered a good choice for low-to-medium output production on a 250-tonne machine like SIPA’s XFORM 250. But what if you could give yourself an important incremental boost, without having to invest on a bigger tooling (i.e. 96 cavities)?
SIPA has the answer. It has developed an 84-cavity mold for the XFORM 250 platform. This unconventional mold provides a significantly better output per capital ratio than a 72-cavity mold – something like 13% better in fact, when producing preforms for 1.5-L bottles on the same SIPA machine – and well ahead of what is possible on rival 72-cavity machine/mold combinations.
Xflow allows consistency and reliability
Creating a hot runner system that consistently and reliably enables more cavities to be filled identically, at high speed, without excessive force, is a task that extremely few companies are capable of handling. SIPA can do it, thanks largely to its Xflow melt distribution system.
Xflow incorporates an innovative hot runner manifold design that provides the best balance of melt distribution in the industry. In fact, it exhibits the lowest pressure drop ever measured. This technology, unique to SIPA, allows the company to create very high-cavitation systems without having to compromise on balance, pressure losses, and the formation of acetaldehyde due to polymer degradation.