| Customization: | Available |
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| Certification: | RoHS, CB, CCC, ISO9001, CE |
| Type: | Electric Coil |
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Porcelain Heater Ceramic Bobbin Resistors for Electric Furnace
Electric ceramic heating radiant tube is characteristic by excellent oxidation resistance and very good form stability resulting in long element life.they are typically used in electrical heating elements in industrial furnaces and home appliances.The inner core of the electric heat radiant tube is composed of the u-shaped axial array end welded resistance wire and ceramic support frame.
There is no shield between inner core and the outer protective sleeve.It has good cooling function, the rated working temperature of electric heating radiant tube is 1000 degrees.The material of resistance wire Cr20Ni80 or 0 cr21Al6Nb. lts surface temperature can reach 1200 degrees.The highest working temperature of this kind of electric heating radiant tube can reach1000 degrees.
The frame use high alumina ceramic.The outer protective casing is made of cold drawing seamless thin-wall heat-resisting steel,its material is 1Cr25Ni35Si2 or 1Cr25Ni20 Si2.The material has high temperature and good oxidation resistance,better high temperature creep strength.
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Key Technical Indexes
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Product Name
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Radiant Tube
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Power for each element:
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2kw to 40kw(can be customized in accordance with
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size
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customer's requests)
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Working voltage
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0v to 380v( can be customized)
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Useful heating length
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500 to 2800mm( can be customized)
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Outer diameter
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80mm- 280mm(can be customized)
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Insulation Resistance (cold )
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≥500 MΩ
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Maximum Escape of Current (cold)
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≤0.5 mA;
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Dielectric strength
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no electric breakdown for 1minute under 1500v
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Max Operating Temperature
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1500ºC
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If with protection, it's cold drawing seemless thin thickness stainless steel tube, the material is Fe-Ni-Cr-Al-Re alloy, this material has super high-temperature oxidation-resistance, carburization resistance and high temperature strength; and woke on 1300 degrees for long time , anti-oxidation on 1360 degrees for short time.
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