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Innovative air heaters from âHDâ Custom Products improve operational effectiveness, enhance product reliability, and reduce costs for our customers. We work closely with OEMs, plant engineers and end product designers providing custom air heaters for a broad array of applications. We serve the medical, automotive, food service, plastics, laboratory, packaging and manufacturing process industries. Air heaters are used to heat air with forced convection, radiant heat, or resistive heating elements. Forced convection moves air past a heat source with a fan or blower. Radiant heaters radiate heat from coils that contain a heated, circulated media such as oil, hot water, or steam. Resistance air heaters consist of sheaths that surround a resistive heating element. The functional use of these tubular heaters is limited only by available space, maximum sheath temperature, and watt density. Air heaters with fins provide improved heat dissipation. Many types of air heaters are available. Enclosure heaters also provide freeze protection and humidity control, along with equipment protection.
Parameters for air heaters include maximum air temperature, maximum air flow, and heating capacity. Maximum air temperature is the maximum temperature of air exiting from the heater. Maximum air flow is the maximum flow of air through the heater. Heating capacity is the wattage which the heater can deliver.
Air heaters are used in a variety of packaging, automotive, plastics, rubber, textile, and electronics applications. For example, air heaters are used to cure adhesives, de-flash molded parts, weld plastic or vinyl fabrics, and dry ink. In the semiconductor industry, air heaters are used in preheating process gases, soldering lead frames, wafer and PC board drying, and heat shrinking wire insulation.
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