Stainless Steel Sleeve Hot Runner Heater

The stainless steel sleeve hot runner heater features a casing made of SUS304 or SUS321 stainless steel, ensuring it does not easily oxidize or blacken in high-temperature injection molding environments; the tube wall resists corrosion from acidic volatile gases and moisture generated during plastic decomposition. The stainless steel tubing offers high rigidity, preventing crushing, flattening, or cracking during installation, removal, or clamp tightening; it is durable against impacts during handling or mold assembly/disassembly, resulting in a low rework rate. Manufactured using a seamless sleeve process, it fits tightly against the outer wall of the hot runner nozzle. Specifications—including inner diameter, total length, power, voltage, lead exit style, lead length, thermocouple integration, and clamp slot configuration—can be customized to suit various new and existing hot runner molds. Standard equipment includes high-temperature fiberglass-insulated wiring, with optional stainless steel braided sleeving or metal corrugated tubing for protection; these options ensure resistance to abrasion, oil, and high-temperature baking, preventing lead wire aging or breakage. Applications include injection mold hot runner systems—specifically for heating hot runner nozzles and small distribution bushings—making them the most commonly used heating elements in this field. Suitable for the production of general plastic parts, precision 3C device housings, connectors, medical plastic components, PET preforms, thin-walled plastic products, automotive plastic parts, and home appliance housings.