Lanfranchi launches a new rotative unscrambler system for difficult to handle PET preforms

designed to unscramble difficult to handle PET performs, such as those that have the neck ring diameter smaller than the body diameter, and therefore are not suitable for orientation via traditional unscrambling systems.

With a trend to light weight PET bottles using preforms requiring high stretch-to-blow ratios, smaller preform body diameters are becoming are more common occurrence.

The Lanfranchi LRPU rotative unscrambler twister undertakes 5 simple steps:

1.

Preforms are introduced in the lower part of the selection cylinder and fall into specially designed spaces (cradles) on the circumference of the cylinder

1.     Preforms reach an opening in the side structure and are extracted by the suction head of the vacuum star wheel

1.     The suction heads, driven by an electrical or pneumatic system, rotate in clockwise or counter clockwise direction, depending on the instructions received from the reading station, in order to turn the performs to a vertical position

The LRPU machine is currently available in speeds ranging from 8,000 to 18,000 preforms / hour with higher out-puts planned.