Kyocera launches new air-cooled UV LED light source

Kyocera Corporation has developed a new air-cooled, UV LED light source that ranks among the smallest in its class while providing revolutionary curing performance for applications such as ink, resin curing and adhesion. The G7A Series will be available in June 2025. 

The G7A Series achieves the highest irradiance in its class, contributes to space saving with market-leading miniaturisation, customisable irradiation width to suit a wide variety of printed materials and stable operation enabled by monitoring functions for irradiation status.

In recent years, UV curing light sources have faced important challenges, including reducing CO2 emissions by decreasing power consumption, lowering ozone emissions, and complying with mercury regulations. Additionally, there is a growing demand for space saving solutions in today’s manufacturing, which has led to a need for more compact light sources with higher curing performance.

Kyocera's UV LED light sources not only have a low environmental impact, but also adopt an air-cooled system that does not require cooling water, even with high output. As a result, additional equipment such as a water-cooling system is unnecessary, enabling a more compact installation. Through this, our product contributes to greater efficiency and reduced environmental impact for various devices used in manufacturing sites, such as printing, adhesion, and liquid gasket.

By utilising Kyocera's proprietary ceramic substrate with heat-dissipation as well as a module heat dissipation design that includes a heat sink, the company has maximised energy efficiency while achieving an irradiance of 20W/cm² (at 0-mm irradiance distance), the highest among air-cooled UV LED light sources in this class. Additionally, by achieving a total dose of 400 mJ/cm² at 50 m/min, which is an important indicator of curing performance, we have achieved high-speed curing performance comparable to water-cooled UV LED light sources, all within a compact design.

Compared to the conventional high-output G5H Series, the G7A Series has a footprint 62% smaller and a height 10% lower, placing it among the world’s most compact (120 x 52 x 151mm) UV LED light sources with the same optical performance. The G7A offers a 30mm irradiation window,  contributing to space savings while preserving high curing performance.

The G7A has a scalable structure in 120-mm increments, allowing the irradiation width to be adjusted from a minimum of 120-mm to a maximum of 2,400-mm, by connecting multiple light source units. This enables flexible customisation of the irradiation width to suit a wide variety of printed materials. Further, the system can connect to external devices via serial communication, permitting fine adjustments to the LED irradiation width in increments of approximately 30-mm.

The G7A Series features monitoring functions via serial communication, allowing for LED temperature, LED current, fan operation time, and accumulated LED lighting hours. It can detect lighting and system errors, and provides notifications for filter replacement and LED lifespan, ensuring stable system operation.

Through the G7A Series, Kyocera will contribute to space saving in a wide range of industrial printing and curing applications, while contributing to a sustainable global environment.