Immediately after the preforms are removed, they are actuated with internal pressure via a transfer gripper. Due to the special design of the Preblow cooling sleeves, a stretching of the floor area follows, which significantly reduces the material accumulation in the sprue area.
Lower preform weight and even wall thickness of the final product
The injection unit of the PET-LINE is a unique in-house-development. The extremely high throughputs of a preform system are only made possible in the first place thanks to the unique design.
In order to improve the preform post-cooling, the demolded preforms are actuated with internal pressure via the transfer gripper.
That ensures a more intensive and, most importantly, uninterrupted post-cooling of the preforms. A calibration of the external preform diameter is carried out at the same time
Faster cycle times and optimal preform quality
The clamping unit of the PET-LINE is based on the proven mechanical system of the SynErgy and was optimized in the course of different evolutionary steps with state-of-the-art digital control technology.
It is tailored to the specific requirements of PET preform molds and thereby offers optimal framework conditions.
PET-LINE is a state-of-the-art production system for PET preforms and stands for maximum profitability and efficient production.
With its PET-LINE product line, Netstal is a leading global supplier of injection molding machines for PET preforms