HI-Heat Industries

United States

Hi-Heat Industries designs these heaters with distributed wattages, eliminating edge loss compensation. Superior heat transfer and exceptionally uniform heat output result in a faster warm-up cycle and longer life. Polyimide has more than 40 years of proven performance as the flexible material of choice in applications involving high temperatures ( 200°C, 392°F), and very low temperatures (-195°C, -319°F). Kapton is a lightweight flexible film that maintains outstanding mechanical, chemical and electrical properties over extreme temperature ranges.

Polyester film heating elements have a maximum surface temperature of 105°C (221° F). They are used on flat or gently curved surfaces to cover large areas with even heat. Polyester film heaters can be designed and fabricated in many configurations to fit the size and shape required in your application. A fine nickel-chromium alloy wire is spiraled onto a center core of fiberglass, producing a strong, flexible heating element. Electronically-controlled precision winding equipment ensures consistency. Circuits are then hand-wound on permanent tooling providing repeatability of resistance and pattern. Parallel circuits are utilized where possible, permitting continued operation should a single circuit be damaged

UL rated with a maximum continuous operating temperature of 200°C (392°F) Thermally stable to 232°C (450°F) continuous operation Intermittent temperatures up to 316°C (600°F) Remains flexible at -57°C (-70°F) High Dielectric Strength 400 to 600 volts per mil of thickness Flammability Rating: Horizontal burn rated (UL 94 HB) Environmentally Stable Resistant to: Ozone Moisture Many chemicals, including those common in the environment

Kapton heaters have a thin, lightweight design (0.005″ thick), which allows close thermal contact for maximum heating efficiency and permits close adaptation to the contours of the part. These low thermal mass heaters have fast warm-ups. Polyimide’s properties and the moisture resistant construction make these heating elements the preferable product in high humidity areas, wash down zones and in applications requiring repeated sterilizations.

A fine nickel-chromium alloy wire is spiraled onto a center core of fiberglass, producing a strong, flexible heating element. Electronically-controlled precision winding equipment ensures consistency. Circuits are then hand-wound on permanent tooling, providing repeatability of resistance and pattern. Parallel circuits are utilized where possible, permitting continued operation should a single circuit be damaged. Wire wound advantages over etched foil element: Faster turnaround time on prototype designs Lower engineering cost More economical pricing at lower quantities