Quartz Window
A quartz glass plate which is transparent to UV energy, fitted over the UV lamphead’s emitting window.
In the majority of cases it is best to have a direct path of radiation from the UV lamp to the target area to maximise the curing effect. However, in some cases, the application necessitates a quartz glass filter to be installed in the lamp’s emitting window.
View Product on Company Website
In the majority of cases it is best to have a direct path of radiation from the UV lamp to the target area to maximise the curing effect. However, in some cases, the application necessitates a quartz glass filter to be installed in the lamp’s emitting window.
Other Products and Services from GEW (EC) Ltd
Inert Gas Curing
Oxygen inhibits the UV curing mechanism. GEW’s inert gas chambers efficiently remove oxygen and improve the curing process. Find out more below:
Under normal atmospheric conditions, oxygen reacts with photoinitiators in the ink after they are exposed to UV light. This renders some of them inactive and limits the extent of polymerisation that can occur. The coating is then poorly cured or the process is forced to run much slower. This is where inert gas curing comes into play.
Curing under an inert atmosphere eliminates oxygen and significantly increases the rate and extent of cross-linking. Curing speeds are greatly improved, migration of harmful materials is reduced and the finished product odour is better.
Under normal atmospheric conditions, oxygen reacts with photoinitiators in the ink after they are exposed to UV light. This renders some of them inactive and limits the extent of polymerisation that can occur. The coating is then poorly cured or the process is forced to run much slower. This is where inert gas curing comes into play.
Curing under an inert atmosphere eliminates oxygen and significantly increases the rate and extent of cross-linking. Curing speeds are greatly improved, migration of harmful materials is reduced and the finished product odour is better.
NUVA2
Fully air cooled up to 250cm, NUVA2 offers UV curing for wide substrate coating and specialist industrial applications.
NUVA2 is the most effective UV curing system for wide web coating and specialist industrial applications. Fully air cooled up to 250cm and available up to 27kW total lamp power, NUVA2 is available with a wide range of customisation and integration options.
GEW’s patented reflectors are actively cooled to ensure that heat transfer to the substrate is minimised, whilst delivering the highest UV intensity and dose available. The quick-change cassette design ensures fast lamp changes with only 1 hex key tool required and the innovative spherical lamp ends prevent breakages on long lamp changes.
NUVA2 is the most effective UV curing system for wide web coating and specialist industrial applications. Fully air cooled up to 250cm and available up to 27kW total lamp power, NUVA2 is available with a wide range of customisation and integration options.
GEW’s patented reflectors are actively cooled to ensure that heat transfer to the substrate is minimised, whilst delivering the highest UV intensity and dose available. The quick-change cassette design ensures fast lamp changes with only 1 hex key tool required and the innovative spherical lamp ends prevent breakages on long lamp changes.
UV LED Curing Systems
UV LED systems are the future of UV curing. GEW’s LED products are unmatched in performance and value throughout the industry…
GEW’s UV LED curing systems use ultraviolet light-emitting diodes (UV LEDs) as the primary light source. Tens or even hundreds of UV LEDs are built onto GEW’s highly specialised circuit boards − named LED modules. Multiple LED modules are mounted together to create a light array which can vary from 15cm to 250cm in length. GEW offers different UV LED product form factors, power levels and wavelength ranges to satisfy many different application requirements.
GEW’s UV LED curing systems use ultraviolet light-emitting diodes (UV LEDs) as the primary light source. Tens or even hundreds of UV LEDs are built onto GEW’s highly specialised circuit boards − named LED modules. Multiple LED modules are mounted together to create a light array which can vary from 15cm to 250cm in length. GEW offers different UV LED product form factors, power levels and wavelength ranges to satisfy many different application requirements.
GEW (EC) Ltd
Crompton Way, Crawley, West Sussex, RH10 9QR, United Kingdom
GEW (EC) Ltd designs and manufactures Arc and UV LED curing systems for printing, coating and converting applications. GEW is the leading manufacturer of UV curing systems for a range of markets, including narrow web label printing, offset printing, UV hot melt, wood coating and much more.