Heating coils are tools that are used to generate heat. They are used in industrial, commercial, and consumer appliances and equipment for an extensive variety of applications. Heating coils function by converting electricity to heat. Heating coils are among the most widely used heating element varieties. They are used to generate heat in buildings, equipment, and in many other applications.
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Applications of Heating Coils
Space heaters, toasters, dish washers, electric ovens, and many other appliances involve the use of heating coils of various shapes, sizes, and heat generation capacities. Consumer and industrial ovens can be equipped with ceramic-coated heat coils, which affect heat generation and protect the coil from dripping grease or other hazards. Industrial dryers, clothing dryers, hair dryers, and many other kinds of moisture removal and heat generation equipment are equipped with heating coils.
Some furnace configurations employ a combination of heat coils and air blowers to heat air and then transmit it through ducts. Heating coils are also important to a large number of industrial equipment and processes.
The following machines use heating coils:
- Metallurgical Analyzers
- Plastic Injection Molding Machines
- Holding Tanks
- Paper Processing Equipment
- Oil Reclamation Equipment
- Blow Molding Machines
- Packaging Equipment
- Bag Sealing Machines
- Hot Stamping Equipment
- Labeling Machines
Heating Coil Design and Customization
Coil heating elements are available in many shapes and sizes. They can be bent to a custom size or shape, or they can be purchased in ready-made shapes. They can be round, coiled, and spiral wound. Different shapes are appropriate in different situations. Spiral wound elements are useful in confined spaces. Star wound coils are placed in ducts and pipes to cause fluid turbulence. Because of the wide variety of contexts in which coil heating elements are employed, a wide variety of coil configurations is necessary. Holding tanks, extruders, blow molding machines, bag sealing and hot metal forming punches all use coil heaters, and each requires its own special coil configuration.
Operating on AC voltages, coil heaters provide a uniform heat pattern over a wide area at temperatures of up to 1200° F. They can be annealed and made of brass, aluminum, copper, iron nickel, or steel with ceramic, fiberglass, or mica insulation. Depending on the metal, some coil heaters are corrosion-resistant and may be immersed in heated substances or used in cryogenic applications. Correctly pairing coil heating elements with their applications is essential to the safety and effectiveness of those applications.