# U-Type SiC Heating Elements ## U-Shaped SiC Elements Description CVSIC U-shaped silicon carbide heating elements (GDU type) feature two equal-diameter SiC rods sharing a single cold end, designed for high-temperature, high-uniformity kilns. The hot zone reaches up to 1600℃, with a maximum operating temperature of 1625°C (2957°F), offering energy savings, a long lifespan, and hassle-free installation and replacement. Perfect for pusher kilns, trolley furnaces, box furnaces, and other periodic electric furnaces, they’re an ideal choice for industrial heating. ## CVSIC U-Shaped SiC Elements Technical Parameters | OD (mm) | HZ (mm) | CZ (mm) | OL (mm) | Bridge Size (mm) | Resistance (Ω) | | --- | --- | --- | --- | --- | --- | | 14 | 200 | 250 | 40 | 54 | 2.4-4.6 | | 14 | 250 | 300 | 50 | 64 | 3.0-6.0 | | 14 | 300 | 350 | 60 | 74 | 3.6-7.0 | | 16 | 200 | 250 | 40 | 56 | 1.4-2.8 | | 16 | 250 | 300 | 50 | 66 | 1.8-3.6 | | 18 | 300 | 350 | 60 | 78 | 2.0-5.0 | | 20 | 250 | 300 | 50 | 70 | 1.8-3.6 | | 25 | 400 | 400 | 70 | 95 | 1.6-3.4 | | 30 | 600 | 400 | 70 | 100 | 1.4-2.8 | Note: Resistance tested at 1000℃ in open air for calibration purposes only. Contact us for other specifications or customization. ### SiC Heating Elements ResistanceTemperature Performance Graphs ![cvsic sic heating elements resistancetemperature performance graphs](https://cvsicelement.com/wp-content/uploads/2025/08/CVSIC-SiC-Heating-Elements-ResistanceTemperature-Performance-Graphs.webp) ## Ordering Information When ordering U-shaped SiC heating elements, please provide the following parameters: - **OD**: Outer diameter (mm) - **HZ**: Hot zone length (mm) - **CZ**: Cold zone length (mm) - **OL**: Overall length (mm) - **A**: Shank spacing (mm) - **Example**: U-shaped, OD=20mm, HZ=300mm, CZ=400mm, OL=700mm, A=60mm, Resistance=2.24Ω ![u type sic heating element drawing](https://cvsicelement.com/wp-content/uploads/2025/08/U-Type-SiC-Heating-Element-Drawing-e1754361532892.webp) ## U-Shaped SiC Heater Connection Methods U-shaped SiC heating elements support 220V and 380V operation: - **220V**: Recommended for series or parallel connection; make sure both rods have matching resistance in series to boost lifespan. - **380V**: Commonly uses star connection (small furnaces, convenient and straightforward) or delta connection (large furnaces, suitable for high-power needs). - *Note*: Inconsistent resistance may cause premature failure. Please select the appropriate connection method based on the furnace’s power and consult our technical team for optimized configurations. ## U-Shaped SiC Rods Applications CVSIC U-shaped SiC heating elements are designed for single-end connected periodic electric furnaces, widely used in: - **Pusher Kilns**: Delivers consistent high heat for better ceramic and material sintering. - **Trolley Furnaces**: Supports large-scale heat treatment, ideal for metal processing. - **Box Furnaces**: Meets laboratory and small-scale industrial heating needs. - **Muffle Furnaces**: For laboratory sample calcination and material analysis. - **Vacuum Furnaces**: For high-temperature processes in inert gas or vacuum environments. - **Other High-Temperature Kilns**: Suitable for glass manufacturing, semiconductor sintering, and more. ## CVSUC U-Shaped SiC Elements Advantages - **Energy-Saving and Efficient**: A U-shaped design with a hot zone up to 1625°C (2957°F) reduces energy use and boosts heating efficiency. - **Long Lifespan**: High-purity SiC material resists thermal shock and oxidation, cutting down on replacement frequency. - **Easy Installation**: A single-end connection simplifies wiring and maintenance, making it perfect for complex kiln structures. - **High-Temperature Performance**: Maximum operating temperature of 1625°C (2957°F), meeting challenging industrial demands. - **Global Support**: Backed by overseas service centers for fast response and technical guidance. ## U-Shaped SiC Elements Installation Instructions To ensure safety and performance, follow these installation steps: - **Inspect Elements**: Check for cracks or damage before installation. - **Fixing Device**: Use ceramic clamps or dedicated fixtures to avoid direct metal contact. - **Power Connection**: Choose series, parallel, or star/delta connection based on voltage, ensuring matched resistance. - **Ventilation**: Keep the installation area well-ventilated to prevent localized overheating. - **Preheating**: Slowly ramp up power at first to avoid thermal shock. - **Regular Maintenance**: Check wiring and fixtures for looseness or corrosion. *Note*: Professionals should do the installation. Download the installation manual for detailed guidance. ## U-Shaped SiC Elements Design Recommendations To ensure optimal performance of U-shaped SiC heating elements, follow these suggestions: - **Hot Zone Length**: Should match furnace chamber width to avoid insertion into furnace walls, preventing ablation. - **Cold Zone Length**: Should equal furnace wall thickness plus 50-150mm extension for accessory connection. - **Furnace Aperture**: 1.4–1.6 times the cold end diameter to allow expansion and avoid cracking. - **Spacing Design**: Element-to-material or element-to-wall spacing ≥3 times outer diameter; element center spacing ≥4 times outer diameter for optimal heat distribution. - **Rotation Flexibility**: Ensure elements can rotate 360° to avoid stress concentration. - **Temperature Control**: Utilize a PID controller for precise temperature regulation to prolong the element’s lifespan. ## CVSIC U-Shaped SiC Elements Customization Services CVSIC offers flexible customization for U-shaped SiC heating elements: - **Size Customization**: Adjust outer diameter, hot/cold zone lengths, and shank spacing to match furnace designs. - **Resistance Optimization**: Tailor resistance to fit your power configuration. - **Special Coatings**: Provide anti-oxidation or corrosion-resistant coatings for harsh environments. - **Bulk Supply**: Support large-scale wholesale with fast delivery and consistent quality. - **Technical Support**: From choosing the right element to installation, we offer expert guidance and thermal simulation services. Contact us for customized solutions or free technical consultation! CVSIC is committed to delivering efficient, reliable U-shaped SiC heating elements to industrial customers worldwide. Contact us for product quotes, customization services, or technical support to optimize your heating process! ### U Type SiC Elements Accessories - [](https://cvsicelement.com/product/h-silicon-carbide-clamps/) #### [H-Type Silicon Carbide Clamp](https://cvsicelement.com/product/h-silicon-carbide-clamps/) - [](https://cvsicelement.com/product/aluminum-braid-for-sic-heater/) #### [Aluminum Braid](https://cvsicelement.com/product/aluminum-braid-for-sic-heater/) - [](https://cvsicelement.com/product/stainless-steel-c-clamps/) #### [Stainless Steel C Clamps](https://cvsicelement.com/product/stainless-steel-c-clamps/) - [](https://cvsicelement.com/product/stainless-steel-g-type-clamp/) #### [Stainless Steel G Clamps](https://cvsicelement.com/product/stainless-steel-g-type-clamp/)