High voltage mercury UV lamp

Sun, 28 Jun 2026 10:16:16 +0800

On a flexo label press pushing 150 m/min, uneven UV output isn’t just a speed killer. It shows up in the work—edge feathering, dot gain, and ink migration on the sensitive substrates we run every day. Most of the time, the culprit is lamp drift: output that shifts as the electrodes age, quartz sleeves get hazy, and reflectors lose their edge.

What actually matters under the hood

We build the high-pressure mercury vapor UV lamp for industrial duty, not a lab bench. The arc is tuned to keep spectral output stable in the 365 nm band—where most label UV inks and coatings absorb cleanly. Peak irradiance is engineered to top 2,000 mW/cm² at the web, giving the energy density (typically 300–600 mJ/cm²) needed for full cross-linking. A dichroic-coated reflector focuses output into that target band and cuts wasted IR, so you cure faster without cooking thin films. We spec electrode geometry and mercury fill pressure to flatten the output degradation curve. Run the lamp within its rated power and cooling window, and units will routinely hit 5,000+ hours with less than 5% drop in measured irradiance.

Voltage on UV Curing China

High voltage mercury UV lamp

What actually matters under the hood