Solutions developed and patented by SIPA offer the highest guarantee in terms of quality and cleanliness of the preforms. In all PPS models, the preforms remain onto the take out plate for up to 6 injection cycles. After preforms are removed from the robot, they have a temperature below 40° C at the neck and 20° C in the body. This efficient cooling method prevents necks and bodies from deformation and scratches.
Handling and cooling is a clean operation since contact occurs between the external surface of the preform only. No air cooling system is used. Even extraction of the preforms from the take-out plate does not involve the use of air, but rather a mechanical system acting on the preform support ring.
There is no other contact between the mechanical parts and the internal part of the preforms during the handling phase.

PPS Injection Systems make it possible for high quality preforms to be produced at fast cycle times. Reduction of the cycle time is possible thanks to the reduction of the dry cycle, which is lower than similar machines currently on the market. A special mechanism for the press opening and closing further quickens the process, contributing to the overall reduction of cycle time. A specific software synchronizes the movement of the press with that of the handling/cooling robot, making it possible to further reduce the time of the robot in extracting the preforms. In this way the mold cycle is reduced while maintaining low stress in the mechanical parts of the machine.

The PPS press, thanks to newly developed technological solutions, has considerably reduced energy consumption. SIPA has also developed personalized solutions in order to optimize consumption of auxiliaries as well, thus reaching an overall energy savings of 14% compared to other systems.
Machine start-up operations are made easier by a hardware and software system that allows the operator to follow the cycle from outside the machine, managing in automatic mode the entire start-up phase and thus providing safety during the purging stage necessary at start-up. This system has made it possible to reduce the amount of material to purge (- 50%) as well as purging times (from 20 to 5 minutes).
All models are provided with an integrated water manifold and booster pump with great advantages in terms of costs and installation savings.

Since 1990 molds and hot runner systems have been designed and built in-house to guarantee improved quality of preforms, functionality of the mold and on-time service.
SIPA’s Mold Division designs and produces complete injection molds for PET preforms to be used in single-stage and two-stage machines and for other machine models present on the market, hot manifolds and closure molds, injection components, blow molds for machines produced by SIPA or others.
Thanks to the broad experience acquired through the years, SIPA has developed a layered structure injection mold. This idea presents numerous advantages both from the point of view of maintenance as well as for mold changing. The molds are provided with quick and independent user connections, facilitating quicker maintenance. Even during replacement of the nozzles or heating components and temperature control, it is possible to intervene without disassembling the mold.