When the heating tunnel on your Krones Contiform 1/2 starts drifting, you don’t just lose output—you lose control. Temperature variance across the preform neck and body shows up as inconsistent stretch, weak bottle bases, and a spike in scrap. Add in the cost of emergency service calls and the labor to swap lamps at odd hours, and the real expense isn’t the lamp. It’s the downtime.
What matters technically
We built the Contiform 1/2 replacement lamp as a direct-fit infrared emitter, matched to the machine’s original thermal envelope. The quartz envelope gives stable, fast-response heating in the heating tunnel, and the R7s connector and overall length are held to OEM tolerances so the lamp seats the same way every time. We spec wattage and voltage to match the Contiform 1/2 heating zones, so you keep the same energy density and temperature curve without re-tuning the entire blow molder.
Why it works on this machine
On a Contiform 1/2, consistent preform heating is what keeps the stretch blow molding cycle stable. This lamp restores the original heat profile across all zones, so you see a tighter temperature spread, fewer pinholes, and less thickness variation. That translates to less scrap, fewer micro-stops, and a more predictable line rate. In practice, many plants report stable output over 5,000+ hours, with output drift low enough that the heating tunnel needs fewer adjustments.
The practical details
Installation is straightforward, but the details matter—lamp alignment and reflector cleanliness are the difference between “good enough” and “right.” Handle the quartz with gloves, wipe the R7s contacts, and confirm the reflector isn’t oxidized. A dirty reflector can rob output even when the lamp itself is correct. And if your Contiform 1/2 has been modified, or the heating zones have been re-wired, verify voltage at the socket before you finalize the match.