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Oerlikon HRSflow (booth 1216, hall A1) will display it’s previously introduced stack mold technology for efficient molding of thin-walled, ecologically optimized packaging. Patent-pending and available soon, the system features the new Xd series nozzles, enabling high filling pressures. The stack-mold design allows a lower tonnage press to be used and Oerlikon HRSflow says they system is suited for processing PCR plastics and sustainable compounds.

In addition, Oerlikon HRSflow will show a 72-cavity cap molding system utilizing its Vf nozzle series, which reportedly enables cycle times of 2.2 to 3.5 seconds and balanced fill. The design satisfies new Europes single-use plastic directive, which mandates tethered closures for all beverage containers up to three liters in volume.

Specially developed for HDPE caps and closures, the Vf nozzles can fill part weights from 0.5g to 8g. The design features a special nozzle tip that enables optimum control in the gate area while improving cycle time. Replaceable nozzle tips ease maintenance, and Oerlikon HRSflow says the hot runner geometries have been rheologically optimized. In addition, special inserts minimize color-change times.

FLEXflow technology will also be presented at Fakuma 2023. The servo-driven valve gate system is combined with a programmable control, allowing independent adjustment of the stroke and force of the needle position of each individual nozzle during the opening and closing phases for cascading injection processes.