BOBST, the world's leading supplier of equipment and services to packaging and label manufacturers, unveiled its new Bobst K5 Expert metallizer at the Bobst Manchester Open House held its Competence Centre on 18 October 2016. Described as the highest productivity metallizer engineered so far, Bobst K5 Expert ensures less aluminium consumption and an increased boat life. It also minimizes aluminium wire waste thereby improving collection efficiency.
The next generation of the successful K5000 metallizer can run at speeds up to 1200m/min, is available in widths from 2450mm to 3650mm and can house increased roll diameters of up to 1270mm to meet new industry trends for improved productivity. According to Bobst, The K5 Expert houses the largest coating drum in the industry at 700mm which improves collection efficiency by 16 per cent.
A metallizer is used in metal packaging industry where aluminium packaging is gaining in popularity worldwide. The new Bobst K5 Expert featuring design innovations including a totally redesigned evaporation source translates in better coating uniformity while providing other benefits at the same time. 
Besides, the new model incorporates low friction Ferrofluidic seals for an even better tension control on the rewind thereby producing a virtually wrinkle-free roll-to-roll vacuum metallization process and a smoother end product i.e. aluminium foils further down-gauged from aluminium sheets.
The K5 Expert has a variety of energy saving and waste reduction features. The ECO mode reduces energy consumption by up to 50 per cent during stand-by and Film Save mode which has a synchronised faster shutter action and aluminium wire ramp up to minimise the amount of un-metallized film (waste) to less than 400m per roll.
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Thanks to all these advanced functionality, the new machine provides significant cost saving through optimised consumables usage and film waste. In addition, faster venting and pump down times results in a reduced production cycle which increases the number of aluminium wire batches/rolls per day.
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