Labelexpo Americas

GEW – UV curing systems at Labelexpo Americas

The LA1 aircooled LED UV lamphead installed in a printing press

USA • The British company will show its comprehensive range of UV curing systems comprising mercury arc systems, LED systems and hybrid systems together with the associated fully hybrid Rhino ArcLED electronic power supply. The complete line-up will be on display on booth # 3500 in hall C at the Rosemont Convention Centre.

The new lamphead LA1 is an LED UV curing solution that performs without the heavy infrastructure and maintenance required by water-cooled LEDs while enjoying the benefits of the efficiency, reliability and extended life cycles of LEDs. In the development phase of the fully aircooled system special consideration was given to the enhanced airflow design to ensure effective heat dissipation at high power levels. The LA1 is fully compatible with existing ArcLED systems without the need for external chillers, pipes or coolant or indeed any other modification. Within this system, printers are able to operate full hybrid UV curing, working with both mercury arc and LED lamp technology on the same press. Mercury arc cassettes and LED cassettes both use the same lamphead casing, the same power supply and the same air cooling ducts. The operator swaps the required cassette and the RHINO ArcLED power supply automatically recognises which type of cassette is installed in the machine, switches from low voltage DC power for the LEDs to high voltage AC for the arc lamps and changes the display on the RHINO touch screen control accordingly.

Also on display will be the new multi-point inline UV monitor. It consists of calibrated sensors positioned along the length of the lamp to continuously measure the UV intensity in a UV curing system. This is vital to avoid the risks and consequences of undercured product reaching the customer. Multipoint in-line UV dose control ensures comprehensive monitoring of the UV output during the curing process. It continuously reads and records the actual intensity across the full width of the lamp and calculates the UV energy dose on the substrate with great precision. A dose monitor is set to alert the operator before the wrong dose could have an impact on production. Low UV output, which would not adequately cure, is thus avoided, as is insufficient output from a degraded lamp.

 

Armin Karl Geiger

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