Why the Details Actually Matter in Bottle Annealing
Let’s cut through the noise: a bottle annealing furnace isn’t just some box that gets hot. It’s a carefully controlled environment that takes the stress right out of the glass, so you don’t have to worry about bottles cracking for no reason. That’s why we built our halogen heaters around that exact idea. And those specs—400V, 2500W, 300mm—aren’t just numbers on a page. The 400V supply lets us pack serious wattage into a compact 300mm tube without tripping the wiring. What does that mean for you? High heat density in a small space. You get the annealing temperature fast, and you get it evenly across the whole load.
Built to Take the Heat, Again and Again
We use a shortwave halogen element inside a quartz tube. The halogen cycle keeps the filament clean and stable, so you don’t get that blackening that kills output over time. It stays consistent through thousands of heat cycles. The tube itself is coated to handle thermal shock and resist the chemicals that come with the glass environment. This isn’t just about making it last. It’s about keeping the heat profile predictable, day after day. And the R7s connector? It’s the practical, no-nonsense choice. A solid bi-pin design that locks in place, so it holds the connection steady—even with vibration and expansion from a running furnace. No arcing. No dropped contact.
What It Feels Like on the Shop Floor
When you’re busy, you need a heater that goes in quickly and just works under pressure. Our 300mm unit drops straight into standard furnace slots, so you can swap it out without re-engineering the whole machine. The 2500W rating gives you the thermal punch needed to hold a stable annealing temperature, even when the door keeps opening and closing. But here’s the trade-off: that kind of power density means you need cooling that’s up to the job. If your furnace airflow is too small, the surrounding parts will run hotter. We provide the heater—just make sure your machine’s cooling can keep pace.
We Don’t Just Sell Parts—We Solve Problems
We’re not here to move boxes. We’re here to solve the heat part of your process. Our engineers will come to your line, check your thermal profile, and match the heater specs to exactly what you’re doing. That way, the heater works with your bottle annealing furnace, not just inside it.
The Specs, Clear and Simple
- **Voltage:**400V
- **Power:**2500W
- **Length:**300mm
- **Connector:**R7s
- **Element:**Shortwave Halogen
- **Coating:**High-temperature, chemical-resistant quartz coating