How to replace Sidel IR lamp

Fri, 17 Jul 2026 04:41:46 +0800

There is nothing worse than a SIG Blomax line grinding to a halt because another lamp just popped. It’s frustrating, it kills your momentum, and it feels like you’re playing a guessing game with your hardware. Most people assume it’s a voltage spike. But usually? It’s just the quartz envelope giving up. Between the intense heat and the constant cycling, those tubes just get tired. They fatigue, they crack, and then you’re staring at a dead line. Why the standard lamps struggle Most IR lamps are built with basic quartz. In a high-speed PET environment, that’s just not enough. The tubes take a beating. We decided to fix that. We redesigned these as reinforced drop-in replacements. We tweaked the quartz mix and beefed up the seals at the electrodes to stop those premature cracks before they happen. It’s a simple change, but it keeps the machines running. Getting the heat right These fit the Sidel IR heater footprint exactly. We spent a lot of time on the wattage-to-length ratio because the goal is to get the preform to the right temperature without overshooting it. High-wattage tubes give you the heat density you need for fast cycles. But here is a pro tip:**keep your cooling blowers clean.**If your airflow is choked, the lamp is just soaking in ambient heat. Even the toughest reinforced lamp will burn out if it can’t breathe. The swap We kept the connectors standard. No rewiring, no headaches. You just pull the old tube, slide the new one in, and lock it down. One thing you’ll notice is that the tolerances are tighter. This cuts down on the vibration while the machine is humming along—which is a huge deal, since vibration is usually what kills the filament in high-frequency blowers. One small thing to watch for Since the quartz is reinforced, it’s a bit tougher, which can slightly shift how the light emits compared to the thin-wall versions. You might need to nudge your oven temperature settings up or down a few degrees during the first run to get the PET stretch exactly where you want it. It takes a minute to dial in, but once you do, these last way longer than the OEM parts.

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How to replace Sidel IR lamp