THIN WALL PACKAGING | TECHNOLOGY
big effect on the viability of production cells.” The company said that until now, a 1.3-litre pail with a wall thickness of 0.45 mm could only be manufactured using a hybrid machine. But, despite a flow path to wall thickness ratio of over 1:400, it said the demonstration illustrated how thin-wall performance can be combined with the energy efficiency of its electric E-motion. The electric drive and temperature control lead to energy savings of around 30% compared to hybrid machines, according to Engel. The pail was produced using easy-flowing PP
from Borealis with an MFI of 100. Engel said the E-motion’s new 765 injection unit also ensures high injection speed and dynamism. Speeds of 600 mm per second and injection pressures of up to 2,600 bar “guarantee machine performance in spite of short fill times and injection strokes”, it said. The plasticising unit of the Fakuma machine met high demands in terms of the throughput rate and melt homogeneity, it added. In the demonstration, the system used a two- cavity mould and automation from Inmold. The automation involved a side-entry robot which filled the cavities with labels from MCC Verstraete. The
labels were picked up electrostatically and posi- tioned in the cavities. Visual quality control was then performed to check the geometry and ensure the labels were correctly positioned, with any missing parts separated fully automatically. Also new at Fakuma, two packages were available for the E-motion packaging machines. Engel said: “Package 1 contains all high-perfor- mance options required on the E-motion platform
Above: Thin-wall pail being moulded on Engel E-motion machine
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