Gallium lamp for screen print exposure

Mon, 08 Jun 2026 07:31:43 +0800

On the floor, a screen exposure unit lives or dies on its lamp and how clean the quartz envelope stays. Put a gallium lamp in for screen exposure, and a single fingerprint on the quartz becomes a surefire failure path. Organic residue soaks up short-wave UV, hot spots form on the quartz, and crystalline devitrification accelerates. You end up with measurable loss in spectral output, shorter lamp life, and the usual fallout—exposure that drifts, pinholes, and rework. Gallium lamps give you a stable spectral profile centered at 365 nm and 405 nm, right where the photoinitiators in UV-curable emulsions need it. That targeted output hits higher peak irradiance at the stencil than broad-spectrum mercury, which tightens cross-linking uniformity and cuts pinholes. Most systems run 80–120 W/cm, with dichroic-coated reflectors to shape the beam and keep dose consistent across the exposure field. Output is measured in mJ/cm²; with clean quartz and reflectors aligned to spec, you can hold ±5% dose uniformity across the active area. Here’s why it works in practice: the narrowband output translates to faster exposures and less heat load on the screen frame, so sagging and emulsion bloom stay under control. Gallium lamps are also ozone-free, which simplifies ventilation and keeps operator exposure in check. The payoff is fewer exposure tweaks, less makeready scrap, and repeatability that holds from job to job. A few field notes.**Never touch the quartz with bare hands.**Use lint-free gloves and isopropyl alcohol for handling and cleaning. Confirm voltage and igniter compatibility—gallium lamps have different arc characteristics than mercury, and they need matched ballasts. Set reflector alignment to the specified focal distance; a 2 mm offset can knock peak irradiance down by 10%. Expect 2,000–3,000 hours at rated power, and keep an eye on reflector oxidation and quartz hazing as the main degradation routes.

Gallium UV lamp for ceramic print

Fri, 29 May 2026 02:49:48 +0800

Gallium UV Lamps in Ceramic Printing: The Secret to Instant Curing

We built the Gallium UV lamp for one reason: to handle the tough demands of ceramic screen printing. It does one job, and it does it well—delivering the precise UV energy that makes your inks cure instantly. For you, that means the line can run faster, and the cure actually holds, even on those dense, stubborn ceramic glazes.

Let’s talk power, voltage, and output

We set these lamps up to blast out high-intensity UVA for rapid curing. The Gallium doping is tuned to hit that sweet spot between 365nm and 400nm—exactly the range the photoinitiators in ceramic inks crave. The power rating gives you enough photon density to finish the job in a single pass. Running at high voltage keeps the arc stable across the whole length of the lamp, so the output stays even from end to end. No weak edges. No patchy cure. And the length is matched to standard print stations, so you can drop it in and get to work without re-engineering your whole line.

Print on Top UV Lamp

Gallium lamp for screen print exposure

Gallium UV lamp for ceramic print

Gallium UV Lamps in Ceramic Printing: The Secret to Instant Curing

Let’s talk power, voltage, and output