UV Irradiators

• UV Lamp Irradiator Assembly
• Irradiator Construction
• Even Cooling
• Efficient Cooling
• Our LIAs offer
• Standard Irradiators

UV Irradiators (reflector assemblies)are used in conjunction with other UV components, such as magnetic ballast, or metal halide ballast and arc lamp, to form a complete UV curing system providing effective UV drying of your product. Replacement UV reflector liners or UV reflector sheets and lamps are also available.

The heatsink-based UV irradiator system provides thermal mass to allow even lamp cooling. This mass prevents transient changes in heating/cooling from being immediately transmitted to the lamp and impedes localized imperfections in cooling from manifesting themselves into thermal gradients. Heat sink-based LIAs are inherently a more robust approach to uniform lamp cooling and result in longer UV lamp life. We also offer cost-effective heatsink-based highly UV reflective aluminum reflector extrusions in four standard sizes. These sizes include E-175, E-350, PO-50, and PO-70.

Optimizing cooling efficiency in an LIA is achieved by using a heatsink-based aluminum reflector, where the material has high thermal conductivity and the design maximizes the effects of surface area and turbulence. Within reason, the more surface area the better the UV lamp cooling. Also important is turbulence, because of the skin effect in cooling. A thin layer of air surrounding a cooling surface acts as a thermal insulator impeding the effect of forced air cooling. This layer needs to be disrupted by turbulent airflow, which can be created by providing irregular fins and fin geometries. For those that want to design their own UV Irradiator for a very cost-effective UV curing system we offer highly UV reflective aluminum reflectors extrusions in four standard sizes, see our E-175, E-350, PO-50, and PO-70

1. Longer UV-lamp life.
2. More UV energy to the curing target improves your throughput.
3. Two focus versions.
4. Faster development time in implementing cooling for UV curing equipment.
5. No design or tooling investment is required.
6. Reduced parts count.
7. An excellent option for a UV retrofit system.
8. Improved quality and better UV cure result through consistent cooling.
9. Flexible lengths for almost any UV system: can be used for lamp arc lengths from 4 to 100 inches.
10. UV Irradiators also have applications in ultraviolet blood irradiation, sterilization, water sterilizers, and air sterilizer.
11. Optional dichroic reflector quarts sheets.

One of the most important features of our LIAs is the construction. This consists of a heavy-duty extruded housing that contains an extruded reflector profile (note these profiles are different than our stand-alone standard aluminum reflectors extrusions: E-175, E-350, PO-50, and PO-70 ). Inside this reflector profile is a high UV reflectance metal insert, which conforms to this profile. In addition to being rugged, the extruded UV reflector provides a large mass, which dissipates heat evenly. It allows uniform cooling across the entire UV lamp length. AC fans with appropriate wiring and lamp mounting provisions (lamp head) are also included.

* Overall length is approximately 10 to 11 inches longer than the lamp arc length.