Bottle annealing furnace heater

Fri, 10 Jul 2026 11:57:00 +0800

Getting the Heat Right in Ultra-Long Glass Tunnel Kilns

If you’re annealing glass bottles, you know the struggle. You need a steady, smooth temperature drop across the whole tunnel. If that gradient slips, you get internal stress, and that’s a recipe for disaster. The problem is that when your tunnel is massive, standard lamps just don’t do the job. They leave gaps. We solve that by building custom infrared heating units that stretch over 2 meters. No cold spots. Just a solid wall of heat. The trick to long-form tubes You can’t just take a standard filament and stretch it out; that’s how you end up with a tube that bows in the middle or just burns out completely. It’s a balancing act between voltage and wattage. We spend a lot of time dialing in the wattage per centimeter. Why? Because it keeps the heat consistent from one end of that 2-meter span to the other. Just a heads-up: make sure your power supply is beefy enough to handle the draw of these arrays. They pull a lot. Tough glass, smarter layouts We use heavy-wall quartz because glass plants are brutal environments. It’s hot, it’s chemically messy, and the equipment takes a beating. To avoid those annoying “heat stripes” you get with shorter lamps, we lay these out in a continuous line. It creates a smooth blanket of infrared energy. Plus, we use industrial-grade connectors so you don’t have to worry about the contacts oxidizing every time the system heats up and cools down. The trade-off (and how to handle it) Here’s the honest part: these units pack a massive punch, but they’re delicate. A 2-meter quartz tube is essentially a giant piece of glass. If it vibrates too much or gets bumped during install, it’s gone. Your mounting brackets have to be spot on. If they’re off by even a few millimeters, the tube can snap as it expands from the heat. It sounds picky, but it’s non-negotiable. Get the spacing right, fasten them securely, and they’ll run forever.

Batch furnace heating element

Thu, 09 Jul 2026 00:37:37 +0800

Precision Heat, Built for Your Glass

We built these batch furnace heating elements for one simple reason: to hit the exact absorption peak of your specific glass additive. Because when you’re running a specialized formula, generic, all-over heat just won’t do the job. We don’t take a one-size-fits-all approach. We scientifically customize the infrared spectrum to match your chemistry.

Power, Packed into a Compact Frame

At the heart of this system is a 400V, 2500W halogen lamp, all housed inside a 300mm quartz tube. It’s a combination designed to deliver serious heat density in a small footprint. That 400V input? It’s a deliberate choice. It lets you plug right into your existing industrial power supply, so you can skip the heavy step-down transformers. And that 2500W output gives you the raw intensity needed to bring batch loads up to temperature fast. But that kind of power density puts demands on the whole system. You’ll need a cooling setup that’s properly spec’d to handle the ambient heat load.

Furnace on The Official IR Heating Store

Bottle annealing furnace heater

Getting the Heat Right in Ultra-Long Glass Tunnel Kilns

Batch furnace heating element

Precision Heat, Built for Your Glass

Power, Packed into a Compact Frame