Introduction
We engineer the halogen golden reflection heat lamp specifically for the harsh environment of automatic air injection blow machines. This is not a generic heater; it is a precision thermal tool designed to deliver concentrated energy where it counts—on the parison. The goal is straightforward: provide rapid, controllable, and uniform heating to ensure consistent bottle wall thickness and structural integrity during the blowing cycle.
Technical Deep-Dive: Power, Voltage, and Dimensions
The core of this lamp is built around a high-energy halogen capsule, typically spec’d out at 2500W. This wattage is necessary to generate the high heat density required to raise the temperature of the PET parison quickly. The lamp operates at 400V, a higher voltage standard that keeps current draw lower compared to 230V units. Lower current means smaller wiring, reduced voltage drop, and less strain on the machine’s electrical components. The physical footprint is compact. A typical unit measures 300mm in length with a 10mm diameter. This tight footprint allows the lamp to fit into the confined heating tunnels of blow molding machines without crowding other components. The geometry is critical—it matches the curvature of the parison, ensuring the heat pattern covers the entire surface area that needs to be stretched.
Material & Design: Halogen, Coating, and Connectors
The heating element uses a shortwave halogen design housed in a high-purity quartz tube. This material withstands the thermal shock of rapid on/off cycling without cracking. The “golden reflection” coating is a thin, reflective layer applied to the inner surface of the quartz tube. This coating reflects infrared energy back onto the element and forward toward the parison, boosting efficiency and directing more heat where it is needed. The lamp uses an R7s connector, a double-ended linear fitting that provides a secure, low-resistance electrical connection. This connector type is standard in the industry for linear halogen lamps, making the unit a straightforward drop-in replacement. The R7s design also handles the high temperatures inside the reflector assembly without deforming, ensuring the lamp stays firmly seated during machine vibration.
Application & Benefits: Optimizing the Blow Molding Process
In automatic air injection blow machines, timing is everything. The parison must be heated to the correct temperature window before the mold closes and air is injected. The halogen golden reflection lamp delivers rapid response, reaching target temperatures in seconds. This allows the machine to run at high cycle rates without waiting for the heater to stabilize. The focused infrared output provides uniform heating across the parison, which reduces thickness variation and prevents weak spots in the finished bottle. The lamp’s compact size and R7s connection make installation and maintenance simple—swap out the old unit, wire it up, and get the machine back online. One trade-off to keep in mind: the 2500W output generates significant ambient heat. The machine’s cooling system must be properly spec’d to manage the temperature around the heating zone. If the cooling is undersized, the surrounding components can overheat, shortening their service life. Plan the thermal management up front, and this lamp will run reliably cycle after cycle.