Dense filament IR lamp for preform line

Sat, 20 Jun 2026 08:44:10 +0800

On the blow molding floor, preform heating isn’t something you leave to chance. Uneven temps, slow recovery, and lamp drift will knock your stretch blow molding cycle off spec—thin walls, ambering, or cap flash that ends up in the scrap bin. We built the dense-filament IR lamp for preform lines to give you repeatable heat, fast and stable, so your blow molder can run the way it’s supposed to. What matters under the hood This is a short-wave infrared lamp, built around a high-density filament inside a quartz envelope. It was engineered for snappy thermal response and tight control over output. Typical ratings are 1.5–3.0 kW, 220–240 V or 380–480 V, with R7s bases and standardized mounting dimensions. It drops straight into existing heating tunnels without a rework. The dense filament geometry concentrates energy where the preform needs it, giving you high irradiance and a fast ramp-up that supports tighter process windows. Why it earns its keep In preform heating, speed and uniformity drive yield. This lamp starts fast, so your heating tunnel hits setpoint quickly after a changeover, and the stable spectral output keeps preform surface temperature consistent across the row. Fewer temperature swings mean more consistent stretch ratios, and bottles that hit weight and stress targets. Energy use drops too—short dwell and quick recovery mean less idle power and less waste heat bleeding into the machine frame. The fine points to watch Installation is straightforward on most blow molding platforms, but match socket type, wattage, and mounting geometry to the OEM spec. Keep the reflector clean and aligned; otherwise you lose irradiance and start seeing banding. Expect peak output in the short-wave band—solid for PET, but it’s not the right fit for every material. Run it on a stable supply, and verify your thermal profile with a pyrometer to confirm the setpoints are actually being held.

Made in China IR lamp for PET preform line

Mon, 01 Jun 2026 23:24:42 +0800

On a high-speed blow molder, the heating tunnel is where the pace is set. Preforms have to land on a tight temperature profile—top, body, shoulder—before stretch blow molding. If the IR lamps aren’t pulling their weight, you’re looking at weak necks, blown sidewalls, and a heap of scrap. We put together our Made in China IR lamp line to drop in as an OEM-spec replacement without the OEM price tag, and keep preform heating stable and repeatable. What actually matters on the technical side We match the footprints you see across the major blow molders, with short-wave quartz halogen emitters built for R7s connectors and standard lengths. Pick the wattage to fit your machine’s heating zone power budget, from 400 W to 1,500 W, in 100 V/220 V options. The quartz envelope heats up fast, so you get the quick response that tight cycle times demand. The infrared output is tuned to cut through the PET preform wall efficiently, giving even heating without scorching the surface. We hold tight tolerances on filament position and lamp length so the beam lands where the reflector expects it. Here’s why it holds up in stretch blow molding: the heating window is narrow. Our lamps keep output stable over thousands of hours, so the heating curve doesn’t drift mid-run. You hold consistent bottle weight, cut down on pinholes, and spend less time down for lamp changes. Energy stays in line because the emitter heats on demand and cools quickly, matching the machine’s on/off rhythm. If you’re running Sidel, Krones, SIPA, Husky, SACMI, or Nissei ASB, the 1:1 geometry and electrical match means you can swap lamps during a scheduled service window without having to re-tune the whole tunnel. Installation is straightforward, but alignment is where the detail lives. Set the lamp to the reflector’s focal line and verify distance with a gauge—lamps that are off will waste power and create hot and cold bands. Confirm voltage at the terminal and match the connector type; a loose contact will show up as flicker and drift. These quartz emitters run at high surface temperatures, so use gloves and let them cool before you service them. Line up replacements with your preventive maintenance schedule so you don’t get blindsided by an unplanned stop.

Line on Core Infrared Heating Tech

Dense filament IR lamp for preform line

Made in China IR lamp for PET preform line