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Low Watt Density Heater |
The Low Watt Density Heater is a modern machine that ensures fast heat transfer, consistent temperature and strong resistance against oxidation. This heater is the best selection for high temperature applications. These don't need accurate wattage distribution and integrated thermocouple. Also, these heater sheath feature 35-40 watts per square inch.
An efficient density heater ensures highest quality standards to provide superior performance and life expectancy at higher temperatures. These heaters are generally employed to heat flowing liquids and gases, such as - air, nitrogen, steam, water, oil and chemicals.
The design of a Low Watt Density Heater:
A typical low watt density heater consists of a round ceramic insulator, through the holes of which a helically wound resistance coil of Nickel Chrome wire is evenly stretched and strung. The coil is passed through the ceramic insulator in such a way that it gets evenly stretched from all directions and forms a stack of ceramic bricks. The remaining space in the insulator is filed with grain sized, high grade magnesium. This increases thermal conductivity, dielectric strength and provide longer shelf life. The alloy of nickel and chrome provides optimum strength and resistance to heat oxidation, even at about 450°C. This entire arrangement is housed in a tube of SS 304 sheath with maximum watt density of 4 watt / sq. cm. The other parts of a density heater are flanged inlet and outlet connections, mounting studs.
Application of Low Watt Density Heater:
Low watt density heaters are used in numerous industrial heating application that doesn't require high watt densities and sheath temperature above 300°C. Listed below are some of the major areas, where these heaters find extesive usage: Packaging Machinery
- Heat Sealing
- Labeling Machines
- Hot Stamping
- Plastic Injection
- Glue guns and Wax pots
- Shoe Machinery
- Rubber Molds.
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