On a Contiform 3 Pro line, the heating tunnel sets the tempo. When the infrared emitter starts to drift, preform temperature goes sideways, and the blow molder fights itself. You feel it in unstable stretch ratios, inconsistent wall thickness, and scrap counts that quietly creep up. The fix isn’t guesswork. It’s matching the heat source to the machine’s thermal behavior, plain and simple. What matters, technically We build the Contiform 3 Pro heating lamp spare as a true OEM-grade emitter: short-wave infrared, quartz envelope, and a filament layout tuned for fast response. It’s engineered for a defined power density, so the watt density lines up with the preform’s surface area and cycle time. The payoff is a predictable temperature rise and a repeatable thermal profile across the heating zones. We match the lamp length, base type, and terminal orientation so the electrical interface drops in clean, and the power supply sees a stable load. No fuss—just the right fit. Why it works on the floor In stretch blow molding, preform heating is the first bottleneck. With this spare, you restore the intended heat flux and keep the thermal field distribution even. That means fewer hot spots, better control of crystallinity, and more consistent bottle weight and clarity. The lamp hits setpoint quickly, so startup is shorter and changeovers run smoother. In practice, you get fewer rejects, less downtime for lamp swaps, and lower energy use per thousand bottles because heating time compresses without overshoot. Here’s what to watch for Installation is straightforward, but the heating tunnel is a harsh environment. Make sure the lamp sits square in the reflector and the connector is tight—even a small misalignment shifts the hot zone and skews the temperature curve. Keep the reflector clean, and inspect the quartz for hazing or end-of-life discoloration. Those signs mean output is drifting, even if the lamp still lights. Plan replacement around your preventive maintenance window to avoid unplanned stops.