# Straight (ED type) SiC Heating Elements ## CVSIC ED Type SiC Rods Description CVSIC Straight Silicon Carbide (SiC) Heating Elements (ED/Straight/ROD/RR/GD Types) are crafted from high-purity, high-density green silicon carbide using a high-temperature silicon recrystallization process with a hot zone density of up to 2.8g/cm³ and a maximum operating temperature of 1625°C (2957°F). The uniform diameter design ensures high mechanical strength, oxidation resistance, and corrosion resistance, making it ideal for high-temperature and harsh environments. Perfect for box furnaces, laboratory furnaces, tunnel furnaces, and more, these elements provide a budget-friendly and high-performance heating solution. ## CVSIC Straight Silicon Carbide Rod Technical Parameters | Diameter (OD, mm) | Hot Zone (HZ, mm) | Cold Zone (CZ, mm) | Overall Length (OL, mm) | Resistance (Ω) | | --- | --- | --- | --- | --- | | 8 | 100-300 | 60-200 | 240-700 | 2.1-8.6 | | 12 | 100-400 | 100-350 | 300-1100 | 0.8-5.8 | | 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 | 600-1650 | 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 | ### 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 Straight (ED Type) Silicon Carbide 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) - **Resistance**: Ω - **Example**: ED Type, OD=54mm, HZ=1575mm, CZ=419mm, OL=2413mm, Resistance=0.9Ω, denoted as: ED Type/54/1575/2413/0.9 ![ed type sic heating element drawing](https://cvsicelement.com/wp-content/uploads/2025/08/ED-Type-SiC-Heating-Element-Drawing-e1754361696347.webp) *Note*: Contact us for other specifications or customization. ## ED Type SiC Heater Connection Method - **Contact Surface Design**: The cold end is coated with aluminum for low-resistance contact, ensuring efficient conductivity. - **Electrical Connection**: Secured with flat aluminum braid and spring clips, supporting single or double-end connections for stable installation. - **Note**: Select the appropriate voltage (110-480V) and connection method (series, parallel, or star/delta) based on furnace power and temperature requirements. Use an SCR voltage regulator (for precise temperature control) to extend lifespan. ## ED Type SiC Elements Application Fields CVSIC Straight Silicon Carbide Heating Elements are suitable for heating scenarios in air or controlled atmospheres from 600-1625℃, widely used in: - **Box/Laboratory Furnaces**: Meets laboratory and small-scale industrial heating needs. - **Tunnel/Muffle Furnaces**: Supports ceramic sintering and powder metallurgy processes. - **Electronics Industry**: Used in semiconductor manufacturing and electronic component encapsulation. - **Lithium Battery Materials**: Supports high-temperature processing of battery anode and cathode materials. - **Rare Earth Phosphors and Precision Casting**: Provides high-temperature stability and uniform heating. - **Magnetic Materials/Ceramics**: Ideal for high-temperature heat treatment and material processing. ## CVSIC ED Type SiC Heater Advantages - **High-Temperature Resistance**: Operates up to 1625℃ with infrared emissivity 5-10 times that of nichrome wire for superior heat transfer. - **High Mechanical Strength**: Bending strength of 100-120MPa, strong vibration resistance, and no deformation at high temperatures. - **Corrosion and Oxidation Resistance**: High-density silicon carbide (2.8 g/cm³) resists acids and alkalis, making it suitable for harsh environments. - **Long Lifespan**: Excellent thermal shock resistance and chemical stability, with simple installation and maintenance. - **Cost-Effective and Eco-Friendly**: Fast and even heating reduces energy consumption, meeting green industrial standards. - **Global Service**: ISO-certified factory, 360-ton annual capacity, offers free samples, and 7-30 day delivery. ## ED Type SiC Heater Installation Method To ensure the performance and safety of Straight Silicon Carbide Heating Elements, follow these steps: - **Inspect Element**: Before installation, ensure the element is free of cracks or damage. - **Installation Type**: Supports vertical or horizontal installation; high-temperature rigidity eliminates the need for additional support. - **Fixing Device**: Use ceramic chucks or dedicated clamping devices to avoid direct metal contact. - **Power Connection**: Hook up to a 110-480V power supply with flat aluminum braid and spring clips to match resistance properly. - **Ventilation**: Maintain good ventilation in the installation area to prevent localized overheating. - **Preheating**: Gradually increase power during first use to avoid thermal shock. - **Regular Maintenance**: Check aluminum coating connections and clamps for looseness or corrosion. *Note*: Professionals should perform the installation. Contact us for detailed guidance. ## ED Type SiC Heater Design Recommendations To optimize the performance of Straight Silicon Carbide Heating Elements, follow these suggestions: - **Hot Zone Length**: Match the hot zone length to the furnace width to avoid insertion into the furnace wall, preventing ablation. - **Cold Zone Length**: Cold zone length should equal furnace wall thickness plus 50-150mm extension for accessory connection. - **Furnace Aperture**: The furnace aperture should be 1.4-1.6 times the cold zone diameter to allow free expansion and prevent cracking. - **Spacing Design**: Maintain ≥3 times the outer diameter between the element and material/furnace wall and ≥4 times the outer diameter for center-to-center spacing to optimize heat distribution. - **Temperature Control System**: Use a PID controller for precise temperature control to extend the element’s lifespan. - **Atmosphere Selection**: Adjust the maximum operating temperature according to the atmosphere type (e.g., oxidizing or reducing); consult our technical team for optimal configuration. ## CVSIC ED Type SiC Rods Customization Services CVSIC offers flexible customization for Straight (ED Type) Silicon Carbide Heating Elements: - **Size Customization**: Adjust the outer diameter and hot/cold zone length to fit your furnace design. - **Resistance Optimization**: Customize resistance to match 110-480V power configurations. - **Special Coatings**: Offer oxidation-resistant or corrosion-resistant coatings for enhanced performance in harsh environments. - **OEM/ODM Services**: Support bulk wholesale, free samples, no minimum order quantity, and 7-30 day delivery. - **Technical Support**: Provide expert guidance and thermal simulation for selection and setup. CVSIC is dedicated to delivering top-notch Straight Silicon Carbide Heating Elements to industries worldwide, optimizing ceramics, electronics, lithium batteries, and high-temperature processes. Contact us for product quotes, customization services, or free samples to boost your heating efficiency! 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