1.5-Step

Unique concept by Nissei ASB,
specialist of the 1-step system.

In designing the PF Series concept our engineers carefully looked at the advantages of the 1-step and 2-step manufacturing processes, broke them into individual elements, then re-combined them into the most efficient method yet devised for manufacture of PET containers.
In the “PF Series” machines, the preform is injection molded, partially cooled, temperature equalized,
re-heated and blown in what is termed a “cool parison” system. This concept, incorporates the advantages of both the 1-step and 2-step systems container molding methods in a unique bottle production system.
The practical result is a very compact injection clamp system at the preform injection station, while the blow station uses 2, 3 or 4 times less blow cavities to achieve a matching output.
This vastly reduces the mold investment cost when molding a variety of bottle shapes from common preforms.
Further simplification of the molds also results in vastly reduced downtime during mold changeover.

1.5-Step