China Silicon Carbide Rod
Time:
Apr 22,2026
U-shaped silicon heating element is manufactured by taking two carefully-matched SiC rods and welding a thickened silicon carbide bridge. This element provides for wiring both tail ends from one side of the furnace. The tail ends of the cold ends are metallized with aluminum, which can provide a low-resistance contact surface to the aluminum connection straps and clamps.
Since U-shaped silicon heating element is composed of two ED silicon heating elements sharing a cold end, it can be connected by the power cord at one end of the furnace. The surface temperature of heating part is 1500. It is mainly used in kilns with high furnace temperature and high temperature uniformity. Its characteristics are electricity saving and long service life.
In addition, a furnace with an energy saving structure can be built because the number of heating element holes on the furnace can be reduced compared with the U types. These elements are widely used as high-temperature heat sources for electric furnaces and for the firing of ceramic capacitors, ferrites and other electronic components.

Type: U-Shaped;
Outer diameter (OD): mm, Overall length (OL): mm, Hot zone length (HZ): mm, Cold end length (CZ): mm, Shank spacing (A): mm
Example: U Type, OD=20mm, HZ=300mm, CZ=400mm, OL=700mm, A=60mm, Resistance2.24Ω
Specify as: U Shaped,20/300/700/60/2.24Ω
Features :
1. High strength and excellent shock resistance;
2. Heat source is free of noise and air pollution;
3. Anti-oxidization;
4. Anti-corrosion,
5. Long service life,
6. Little deformation,
7. Easy installation and maintenance.
8. Excellent specific rate of heat zone resistance and cold end resistance,
9. Avoiding over-temperature of cold ends to damage the furnace body.
10. Saving energy
|
Outer Diameter |
Hot zone |
Cold zone |
Overall length |
Range of resistance |
|
8 |
100-300 |
60-200 |
240-700 |
2.1-8.6 |
|
14 |
100-500 |
150-350 |
400-1200 |
0.7-5.6 |
|
16 |
200-600 |
200-350 |
600-1300 |
0.7-4.4 |
|
18 |
200-800 |
200-400 |
600-1600 |
0.7-5.8 |
|
20 |
200-800 |
250-600 |
700-2000 |
0.6-6.0 |
|
25 |
200-1200 |
250-700 |
700-2600 |
0.4-5.0 |
|
30 |
300-2000 |
250-800 |
800-3600 |
0.4-4.0 |
|
35 |
400-2000 |
250-800 |
900-3600 |
0.5-3.6 |
|
40 |
500-2700 |
250-800 |
1000-4300 |
0.5-3.4 |
|
45 |
500-3000 |
250-750 |
1000-4500 |
0.3-3.0 |
|
50 |
600-2500 |
300-750 |
1200-4000 |
0.3-2.5 |
|
54 |
600-2500 |
300-750 |
1200-4000 |
0.3-3.0 |
Upgrade your thermal processing equipment with our advanced Silicon Carbide Rod, designed specifically for continuous operation in demanding environments such as tunnel kilns, shuttle kilns, and vacuum furnaces. This Silicon Carbide Rod features a dense, recrystallized structure that provides superior mechanical strength and resistance to chemical corrosion from acidic or alkaline atmospheres. Whether you are firing technical ceramics, heat-treating alloys, or producing glass products, the Silicon Carbide Rod ensures consistent temperature profiles with minimal drift over time. Its low thermal expansion coefficient also prevents cracking during rapid temperature ramping.
What sets our Silicon Carbide Rod apart is the combination of longevity and cost-effectiveness. Unlike graphite or molybdenum disilicide elements, the Silicon Carbide Rod operates effectively in both air and controlled atmospheres without requiring protective coatings. Each Silicon Carbide Rod undergoes 100% electrical and dimensional inspection to guarantee resistance tolerance within ±5%. For heavy-duty applications, we offer a spiral-shaped Silicon Carbide Rod that increases surface area and heat transfer efficiency. Additionally, the Silicon Carbide Rod can be connected in series or parallel configurations to achieve desired power ratings. Users report up to 30% longer lifespan compared to standard heating rods when following our recommended power ramp rates.
To install, simply insert the Silicon Carbide Rod through furnace wall bushings and secure with aluminum braid terminals. Avoid mechanical shock during handling, as the Silicon Carbide Rod is hard yet slightly brittle. We provide complete accessory kits including terminal connectors, clamping springs, and high-temperature cement. For optimal performance, age the new Silicon Carbide Rod at 80% rated voltage for 2–4 hours before full-load operation. Stocked in standard sizes from 300mm to 2500mm heating length, our Silicon Carbide Rod ships within 24 hours. Request a sample lot today to test the reliability of our Silicon Carbide Rod in your specific heat treatment process.
FAQ Updates
Mar 19,2026
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