Twin tube white lamp 15x33mm

Sat, 27 Jun 2026 03:43:41 +0800

On the blow molding floor, heating drift in the preform tunnel is the quiet killer. You see it in inconsistent stretch, in rejects that slip past QC, and in the energy bill that climbs for no obvious reason. When the halogen infrared lamps underperform, the whole line pays for it. Here’s what matters technically. We use a twin-tube white lamp, 15x33mm, built specifically for PET preform heating in stretch blow molding. The 15 mm tube diameter and 33 mm arc length match the OEM heating zone geometry on common blow molders, so the lamp drops in without rework and sits right in the reflector focus. We run the filament at a power point matched to the blow molder’s heating tunnel load, keeping output stable across the quartz envelope. That gives you a repeatable temperature profile and a clean, controllable warm-up curve. In practice, you can hold the preform’s temperature window tight—shoulder to neck—and run faster cycles without scorching. Why it works on real bottle lines. This lamp is engineered for production where clarity and neck stability matter. With tight control over the heating curve, heat distribution across the preform improves, and wall thickness after blowing is more uniform. That translates into fewer pinholes, less crystallinity, and consistent fill lines. Power matching also keeps energy use aligned with the heating tunnel’s design, so you don’t generate waste heat that stresses the cooling system. Over time, that means fewer lamp changes, a more thermally stable tunnel, and uptime that stays consistent. A few shop-floor notes. Installation is straightforward, but the lamp has to be oriented correctly in the reflector and seated squarely on the R7s base. Verify voltage and terminal polarity against the machine label, and confirm the lamp’s power rating matches the heating zone settings. Expect a short warm-up before the thermal field settles. Set your ramp rate to match the preform material and color. Dense pigments absorb IR differently, so fine-tune power density to avoid surface overheating. We’ve run units at 5,000+ hours with less than 5% output drop in typical PET cycles. Replace lamps one by one, and you can keep the line in spec without tearing into the heating section.

White on Warm Patio Infrared Systems

Twin tube white lamp 15x33mm