Can you actually cut energy costs by 20% just by swapping your IR elements?
If you walk through most plastic processing plants, you’ll find these old heating tunnels that are basically just giant electricity leaks. When people ask me where the waste is, they usually point to the insulation. But honestly? The real culprit is usually the heating elements themselves. I get asked all the time: “Can I just drop in new infrared (IR) lamps and actually see a 20% drop in my power bill?” The short answer is yes. But there’s a catch. Here is how it actually works. Most of those legacy tunnels use old-school tubes that spend half their time heating up the air around the plastic before the plastic even feels it. It’s inefficient. We swap those out for high-density medium or short-wave elements. Instead of warming the whole room, these target the polymer chain directly. You stop wasting energy heating the tunnel walls and start putting that heat exactly where it belongs—into the product. It makes the ramp-up time way faster. The material hits the right temperature quicker, so your heaters aren’t running for nearly as long. But you can’t just “swap a bulb” and call it a day. To actually hit that 20% mark, you have to get the wattage and voltage right for your specific line speed. If you just cram too much power into a small space to save time, you’re going to scorch the surface of your plastic. It’s a balancing act between how much heat you’re throwing and how fast the conveyor is moving. And here is the part everyone forgets: the reflectors. Putting brand new lamps into old, oxidized, crusty reflectors is a total waste of money. You need those gold or aluminum surfaces to be clean so they can bounce the energy back onto the workpiece. Otherwise, you’re just heating the ceiling. The money side of things. The best part is that this fits perfectly into those “Green Finance” buckets because you can prove it. You don’t have to guess; you just look at the meter readings. Since you aren’t tearing out the entire tunnel and rebuilding it from scratch, the upfront cost is low. You get the savings without the nightmare of a full system overhaul or days of downtime. It’s a win-win.