http://irlampworld.com/en/tags/preheat/ Recent content in Preheat on IR Lamp World Hugo en-us Sat, 04 Jul 2026 00:59:14 +0800 http://irlampworld.com/en/posts/how-to-preheat-pcb-for-soldering/ Sat, 04 Jul 2026 00:59:14 +0800 http://irlampworld.com/en/posts/how-to-preheat-pcb-for-soldering/ <p><img src="http://irlampworld.com/images/5ecaee585251b06851b42dd0ac15d846.png" alt="How to preheat PCB for soldering"></p> <h2 id="how-to-spec-a-halogen-lamp-for-pcb-preheating-power-shape-and-the-r7s-connection">How to Spec a Halogen Lamp for PCB Preheating: Power, Shape, and the R7s Connection</h2> <p>We build preheating lamps for soldering lines that need one thing: hit the target temperature fast, then hold it steady. The heart of the job is a halogen shortwave infrared lamp—sized and wired to deliver predictable heat without overshooting.</p> <h3 id="power-voltage-and-sizewhat-actually-matters">Power, <a href="https://goldisgood.com">voltage</a>, and size—what actually matters</h3> <p>We choose a 400V halogen lamp because it lines up with plant power. That keeps current lower on the branch circuit, so your cables stay reasonable and your contacts don’t get stressed. At 2500W, you get a lot of radiant power. In plain terms: the board heats up quickly. And the 300mm length? It’s a sweet spot. Long enough to cover typical PCB widths and component zones in one pass, but short enough to keep the footprint tight and the heat focused. Energy goes where you need it, not all over the frame.</p>