New BOBST K4000 CRUCIBLE Features Low Defect Metallising

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The new K4000 CRUCIBLE is based on the K4000 platform with the advantage of crucible technology, which produces low defect metallised film. It gives a 90% reduction (when compared to an equivalent boat metalliser) in the number of pinholes and provides a repeatable, reliable performance using proven manufacturers for all critical equipment.

The machine can metallise a wide variety of materials including aluminium, silver, copper and zinc sulfide for a variety of applications including high barrier food packaging and yarn manufacture. The K4000 CRUCIBLE does not compromise on web speed, running at a maximum of 840m/min.

Crucible technology provides deposition quality and uniformity. The source is fully water cooled and the design ensures ease of cleaning. Consumable costs involved in running the crucible machine are also lower due to the low cost of the metal ingots in comparison to wire.

The large 600mm diameter coating drum allows for increased film wrap, which provides better film cooling efficiency. The drum provides the largest coating window in its class in the industry, allowing increased collection efficiency by 16%.

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