Achieving Second Level Surface Drying in Coating Lines with Shortwave IR Technology

Tue, 08 Sep 2026 12:12:53 +0800

Stop Your Parts From Sticking: The Magic of Shortwave IR

If you’re running a high-speed coating line for metal parts, you know the nightmare of the “tack-free” window. It’s that annoying gap where the paint looks dry, but it isn’t. If a part hits the conveyor or gets stacked too soon, they bond together. Now you’ve got a mess on your hands and a lot of wasted time. To fix this, we use shortwave infrared (IR) lamps. We specifically build these as drop-in replacements for Krones ovens to force that “second-level” surface dry. How it actually works Most ovens just heat up the air, which takes forever. Shortwave IR is different. It sends energy straight into the coating molecules. We tune these lamps to a wavelength that the paint just drinks up. This causes the solvents on the surface to flash off almost instantly. In a few seconds, you’ve got a hard skin. No more “blocking,” no more stuck parts, and no more headaches during stacking. The nitty-gritty on power We use high-wattage quartz halogen tubes for this. These aren’t your average space heaters. We’re packing a ton of power into a tiny footprint so the energy hits the part before it even has a chance to move past the lamp head. One word of caution: you have to match your voltage and wattage exactly to the original Heraeus or Krones specs. If you don’t, you’ll burn out the filaments. And if you try to push too much wattage without upgrading your cooling blowers? You’ll literally cook your lamp sockets. Getting them installed The best part is that these are direct replacements. You don’t have to tear apart your panels or mess with the oven chassis. You just swap the tubes, wire them up, and you’re good to go. But here is the most important tip:do not touch the glass. These lamps get incredibly hot. If you leave a fingerprint or a smudge of oil on the quartz tube during installation, it creates a hot spot. That one little spot will make the glass fail way sooner than it should. Always give the tubes a quick wipe with isopropyl alcohol before you flip the switch. It takes two seconds and saves you a lot of money in the long run.

Preventing Coating Bubbles in Aluminum Wheel Powder Coating with High Density IR Lamps

Sat, 05 Sep 2026 23:22:05 +0800

Fixing the Bubble Problem in Aluminum Wheel Coating

If you’re running powder coating lines for aluminum wheels on ROQ dryers, you’ve probably dealt with the headache of solvent entrapment. It’s a pain. Basically, the surface skins over too quickly, trapping gases inside that eventually punch through the coating. You end up with bubbles and pinholes that ruin a perfectly good wheel. We deal with this using high-density IR lamps. They’re designed to be drop-in replacements for Heraeus specs, so you don’t have to rebuild your whole setup. Getting the flow right To kill those bubbles, you need the heat to hit just right. We’re looking for “flow”—that sweet spot where the powder melts and levels out smoothly. If the heat is too low, the coating stays thick and gooey for too long. Too high? You’ll burn the surface before the gases have a chance to get out. Our lamps are built to deliver a concentrated punch of heat that sinks deep into the coating fast. It forces the air out before the film seals shut. The gear behind it We use short-wave quartz technology here. Why? Because we need the energy to hit the aluminum directly. Aluminum wheels aren’t flat—they’ve got spokes, rims, and weird angles. Because of that, we match the lamp’s wattage and length to your conveyor speed. We also use high-voltage setups to keep the heat consistent across the entire tube. No cold spots. No uneven curing. A quick heads-up on the trade-off Here’s the thing: high heat density is a bit of a double-edged sword. When you push these lamps to the limit, your dryer’s cooling system has to work harder. If your exhaust fans can’t keep up with the ambient heat, you’ll cook the lamp ends and kill the tubes way faster than you should. And please, keep your reflectors clean. It sounds simple, but a bit of dust can tank your efficiency by 15% and create hotspots on your wheels. Not worth the risk.

Heraeus on Indoor IR Heating Network

Achieving Second Level Surface Drying in Coating Lines with Shortwave IR Technology

Stop Your Parts From Sticking: The Magic of Shortwave IR

Preventing Coating Bubbles in Aluminum Wheel Powder Coating with High Density IR Lamps

Fixing the Bubble Problem in Aluminum Wheel Coating