Silicon carbide is a ceramic material with relatively high electrical conductivity when compared to other ceramics. Elements are produced by pressing or extruding and then sintering.
Straight Silicon Carbide Heating Elements For Kilns
Characteristics of silicon carbide heating elements(SIC Heater):
Silicon carbide is a ceramic material with relatively high electrical conductivity when compared to other ceramics. Elements are produced by pressing or extruding and then sintering.
Typical heating elements are rods or tubes, with diameters between 0.5 and 3 inches and lengths from 1 to 10 feet. They have metalized ends for electrical connections, and they often have both connections at one end, with two helical slots which stop short of the other end, thus approximating a twisted hairpin form.
Electrical characteristics
The resistance of these elements varies with both temperature and time. The nature of these variations depends on the particular grade of material and manufacturer. For most types, the resistance is high when the material is cold, decreasing as temperature rises, reaching a minimum at typically between 1000°F and 2000°F, then increasing again as its temperature rises further. When kept at a high temperature, the resistance of the material increases with age.
The change in resistance can be of the order of 3 or 4 to 1 for both timerelated and temperature-related phenomena, giving an over-all ratio of the order of 10:1.
The rate of ageing is affected by the surrounding atmosphere, and also depends to a large extent on the operating temperature (and hence on the power being dissipated). Most will quote life related to maximum power in various temperatures and atmospheres.
Size
Diameter | Length of hot zone | Length of cold zone | Overall length | Range of resistance |
8mm | 100-300mm | 60-200mm | 240-700mm | 2.1-8.6 ohms |
12mm | 100-400mm | 100-350mm | 300-1100mm | 0.8-5.8 ohms |
14mm | 100-500mm | 150-350mm | 400-1200 | 0.7-5.6 ohms |
16mm | 200-600mm | 200-350mm | 600-1300 | 0.7-4.4 ohms |
18mm | 200-800mm | 200-400mm | 600-1600 | 0.7-5.8 ohms |
20mm | 200-800mm | 250-600mm | 700-2000mm | 0.6-6.0 ohms |
25mm | 200-1200mm | 250-700mm | 700-2600mm | 0.4-5.0 ohms |
30mm | 300-2000mm | 250-800mm | 800-3600mm | 0.4-4.0 ohms |
35mm | 400-2000mm | 250-800mm | 900-3600mm | 0.5-3.6 ohms |
40mm | 500-2700mm | 250-800mm | 1000-4300mm | 0.5-3.4 ohms |
45mm | 500-3000mm | 250-750mm | 1000-4500mm | 0.3-3.0 ohms |
50mm | 600-2500mm | 300-750mm | 1200-4000mm | 0.3-2.5 ohms |
54mm | 600-2500mm | 300-750mm | 1200-4000mm | 0.3-3.0 ohms |
Drawings
Application of industrial heater:
It is widely used in various high temperature electric furnaces and other electric heating devices, such as in the industries of magnet, ceramics, powder metallurgy, glass metallurgy and machinery etc.
Our main products include silicon carbide heating element and Mosi2 heating element with various types such as U type, three phase type, equal diameter type, and other heterotypic.
Product pictures show
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Packing and shipment
Market:
Currently, Suwaie Technology heating element is already exported to Asia, Europe, South America, North America, Africa and Middle East and other regions. For more details, please feel free to contact us. We will give you best service and timely reply.
FAQ
1. Q: How long should your heater serves?
A: The lifespan of heater is decided by the quality of Mgo and resistance wire quality. With good resistance wire, our heating element can serve 50000 hours.
2. Q: have your sale team and service team for you company?
A: Yes, we have sales team and service team, also we have technology D&R team, for service our clients
3. Q: How about the Package & Product design?
A: Based on factory original box, original design on product with neutral laser and label, original package for export carton. Custom-made is OK.
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