Introduction
We built this replacement lamp for one specific job: the SMI SR 8 blower on Husky HyPET high-speed systems. Its whole reason for being? Getting deep, powerful heat into PET preforms so they hit the right temperature before the stretch-and-blow step. This isn’t some off-the-shelf tube. It’s a purpose-built thermal match for the machine—tuned to keep up with the power, the timing, and the pace of the line.
Power, Voltage, and Fit: The Real-World Numbers
Here’s what you’re getting: 400V, 2500W, and a 300mm active heating length. That wattage isn’t random. It’s packed into that length on purpose, so you get serious heat flux in a tight blower space—enough to drive heat in fast and deep. The 400V rating lines up with the machine’s electrical setup, which helps keep current load manageable on the wiring and supports cleaner thermal behavior during constant cycles. And the 300mm length matches the heating zone geometry, so you get even coverage across the preforms without hot spots.
What It’s Made Of—And Why It Matters
Inside, you’ve got a halogen element running in a high-purity quartz envelope. We also added a specialized coating to shape the infrared output and protect the tube. The result? The element stays hot and stable, even when the system is flipping on and off quickly. It’s built to take the shock of rapid cycling without getting rattled. And the connector? It’s an R7s, chosen because it drops right into the SR 8 blower. It locks in clean, solid contact, and it makes lamp swaps quick and painless when it’s time for maintenance.
How It Performs on Husky HyPET
On the HyPET system, the blower stage has to keep up with serious throughput. This lamp brings the heat penetration needed to soften the core of the preform fast—so stretch ratios stay consistent and you see fewer scrapped parts from cold shots. The quartz design and coating are tough enough for repeated heating and cooling cycles, and the R7s interface means you can replace the lamp without rewiring or tweaking the blower.
One Thing to Keep in Mind
With 2500W packed into this footprint, the cooling path has to be in shape. Keep the blower airflow and heat sinking where they should be—otherwise, the lamp and nearby parts will run hotter than intended.
Bottom Line
If you’re running a Husky HyPET and need a heating lamp for the SMI SR 8 blower that can keep pace—hitting the right power, the right fit, and the right cycle rate—this is built to do the job. It’s a straight-in replacement that helps keep your line moving without the hassle.