Wide mouth jars on the blow molding line are brutal on heating. Thick shoulders, thin walls—miss the heat profile by a hair and you’re staring at haze, crystallization, or necks that won’t carry load. We built this preform heater to stop those scrap losses and keep your machine in the run. Here’s what matters under the hood. The unit runs short-wave infrared with quartz emitters, because they respond fast and let you hold a tight band on the heat. Power is matched to your blow molder’s cycle and the preform mass, and the lamps run off standard voltage. Emitter length and focal distance are dialed so the energy lands where it needs to—shoulder and body—without cooking the neck. The heater body is compact, and the R7s connector interface makes swapping the heating tunnel quick. Wide mouth preforms don’t just need peak temperature. They need a repeatable soak. This heater gives you stable, even heat across the preform, so stretch stays uniform through stretch blow molding. That means fewer rejects, consistent wall thickness, and a cleaner transition from preform to jar. You also get faster warm-up, steady output, and lower energy draw per part. On Sidel, Krones, SIPA, Husky, SACMI, or Nissei ASB machines, the 1:1 parameter match lets you drop it in and tune, not re-engineer the line. Installation is straightforward, but don’t skip the details that bite back: lamp alignment and reflector cleanliness directly drive output. There’s a short learning curve when you set dwell and intensity for your specific preform. Keep the tunnel clear of dust, and verify voltage at the terminal—small variances can drift the profile. We provide the specs and wiring notes up front so you can plan the changeover with minimal downtime.