Why your SIG Blomax and Sidel SBO6 lamps keep popping
If you’re constantly replacing heater lamps on your SIG Blomax or Sidel SBO6 line, you’ve probably wondered why they’re burning out so fast. Most people assume it’s a power surge or a voltage issue. But here’s the thing: it’s usually just a beating. High-speed PET blowing is a brutal process. Between the constant vibration and the crazy swings in temperature, those standard quartz tubes are under a lot of stress. They expand, they contract, they shake—and eventually, they just snap or lose their connection at the terminals.
Making them tougher
We wanted to build a lamp that could actually take the abuse. We looked at where the standard lamps usually give up—typically at the pinch seal—and reinforced the bond between the electrode and the quartz. This stops the glass from cracking when the oven heats up and cools down rapidly. We also tightened up the tolerances on the length and diameter. Why? Because a lamp that doesn’t fit perfectly will rattle. And in this environment,**rattling equals breaking.**These drop-in replacements sit snug in the reflector, so they stay put while you’re running at full speed.
A quick heads-up on heat
These tubes are designed for high wattage to keep your cycle speeds where they need to be. That’s great for production, but it means your oven is going to get hot. Really hot. Before you swap them in, do yourself a favor and check your cooling blowers. Make sure they’re clean and pushing air properly. If your airflow is choked, the reinforced glass will keep the tube from snapping, but your terminals will still oxidize and burn out. It’s a simple fix that saves a lot of headache later.
Getting them installed
You don’t need to mess with your wiring or modify the loom; we use standard industrial connectors. Since the footprint is exactly the same as the OEM SBO6 spec, you won’t have to spend hours recalibrating your oven racks. Just swap the old tube for the reinforced one, check the measured wattage of your new batch, and reset your power controllers. It’s a straightforward swap that just… works.