Twin tube white lamp 15x33mm PET

Fri, 19 Jun 2026 05:32:28 +0800

On the blow molding line, uneven preform heating shows up immediately—stretch marks, weak shoulders, and crystallinity that’s off-spec. When the heating tunnel can’t hold a stable thermal profile, you pay for it in scrap and painfully slow changeovers. We built the twin tube white lamp, 15x33mm PET, to drop straight in as a spec-for-spec replacement in standard infrared heating zones. No oven re-engineering. Just repeatable heating again. The heart of it is a compact short-wave infrared emitter in a 15x33mm twin-tube quartz body with an R7s connector—built specifically for PET preform heating. Power density is matched to what most heating tunnels see, so the lamp hits target temperature quickly and holds it, even under continuous cycling. The white glass gives cleaner spectral control, which helps you shape the temperature rise across the preform wall the way you need it. We tune the output to give a predictable temperature curve—fast ramp into the soak zone, then a stable hold—so the preform surface heats evenly before it gets to stretch blow molding. And here is why it matters on the floor: better thermal stability in the heating tunnel means fewer hot spots and fewer cold streaks. The lamp’s geometry and power fit the OEM’s thermal design, so the heat field spreads uniformly across the preform array. That keeps bottle weight, wall thickness, and clarity more consistent, and it helps you recover cycle speed faster after a changeover. Energy use drops, too, because the emitter reaches setpoint fast and spends less time overshooting. Installation is straightforward on standard R7s fixtures, but alignment matters. The lamp has to seat fully and run within the specified voltage window—otherwise you’ll see uneven heating and the life will shorten. Under stable line conditions, expect a typical service life around 5,000 hours. Keep the orientation correct and keep the reflector clean to protect output stability.

15x33mm on Factory Direct Infrared Heaters

Twin tube white lamp 15x33mm PET