Getting the Heat Right for Industrial Fruit Drying
If you’re prepping fruit for export, you know the struggle. You need the moisture levels to be spot on and the surface temperature consistent, or you’re looking at a lot of wasted product. That’s why we build our infrared (IR) lamps to do the heavy lifting on high-volume conveyor lines. A lot of plants are ditching those old-school hot-air ovens. Why? Because IR doesn’t just heat the air—it goes straight for the water molecules in the fruit. Power and the “Case Hardening” Problem We lean toward high-wattage output because, let’s be honest, you want your line moving fast. By focusing the energy into short-wave or medium-wave bands, the heat hits the fruit instantly. This is a big deal because it stops “case hardening.” That’s the annoying thing where the outside dries into a hard shell and traps all the moisture inside. With our setup, you get a dry that’s actually uniform. But a heads-up: high-power tubes get incredibly hot. If you’re pushing 2000W or more per lamp, your housing needs to breathe. If you skimp on ventilation, you’ll end up frying your wiring or tripping breakers. Not a great way to spend a Tuesday. The Build: Quartz and Coated Glass We use high-purity quartz glass. It’s tough enough to handle the thermal shock of being switched on and off rapidly without just cracking. For snack lines, we often use coated tubes. This tweaks how the heat is emitted so it actually penetrates the skin of the fruit instead of just scorching the surface. You want a dried mango, not a burnt one. And we kept the connectors simple. Whether it’s R7s or Sk15, they’re drop-in replacements. Your maintenance crew can swap a dead lamp in a few minutes. No need to rewire the whole rack and lose an hour of production. Dealing with Global Grids Export factories are all over the map, and so are the voltage grids. We build our lamps to play nice with global electrical standards, so they work whether your machinery is sitting in Europe, North America, or Southeast Asia. There is one catch, though. Quartz is strong against heat, but it’s fragile. These lamps can’t take a hit. You’ll want to install them in shielded racks to keep them safe from the vibrations and the general chaos of a factory floor.