Sic Heating Elements

Core Value: The Far Infrared Silicon Carbide (SiC) Rod Heater is the premier non-metallic heating element for high-temperature industrial furnaces operating between 600°C and 1400°C. Made from high-purity green silicon carbide via a high-temperature recrystallization process, these elements offer superior oxidation resistance and a slower “aging” (resistance increase) rate compared to standard market rods. They emit intense far-infrared energy, making them ideal for sintering ceramics, melting glass, and heat-treating metals. BACKED BY 30 YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS, our SiC rods feature low-resistance cold ends to maximize furnace efficiency and protect electrical connections. ✓ High Temperature: Stable operation up to 1400°C (2550°F) in air atmosphere. ✓ Slow Aging: Special coating technology retards the oxidation process for longer service life. ✓ Low Resistance Cold Ends: Cold zone resistance is minimized to prevent terminal overheating. ✓ High Watt Density: Capable of surface loads up to 30 W/cm², delivering rapid heating. ✓ Corrosion Resistant: Withstands acid and alkali vapors better than metallic elements. ✓ Various Shapes: Available in Rod (ED), Dumbbell (DB), U-Shape, W-Shape, and Spiral types. ✓ Reliable Quality: 30 YEARS MANUFACTURING EXPERIENCE ensures precise resistance matching. ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS. ✓ Global Standards: CE, LVD, RoHS, ISO 9001 certified. Technical Specifications & Performance Data Parameter Standard Value Customizable Range Notes Element Type Type ED (Straight Rod) U, W, DB, SC, SCR Custom geometries available Diameter 8mm – 54mm Up to 75mm Standard industry sizes Overall Length 300mm – 3000mm – Hot Zone Cold Ends Working Temp 1400°C (in Air) 1600°C (Max) Depends on atmosphere Material High Purity Alpha-SiC – Recrystallized Resistance Tolerance ±10% (Single) Matched Sets (±1%) Critical for series connection Specific Gravity 2.6 – 2.8 g/cm³ – High density structure Porosity 18% – 22% – Optimized for thermal shock Bending Strength > 300 kg/cm² – Handle with care (Brittle) Warranty 1 Year Standard Quality assured COMPREHENSIVE QUALITY ASSURANCE Industrial Applications & Solutions Sintering Furnaces: Production of technical ceramics, ferrites, and powder metallurgy parts. The uniform far-infrared heat ensures consistent grain structure in sintered products. Glass Melting & Feeder Bowls: Keeping glass molten in feeder forehearths. SiC rods can withstand the corrosive vapors from molten glass batches. Lithium Battery Materials: Calcination of cathode materials (LFP/NCM). Our high-purity SiC prevents contamination of the battery material. Laboratory Furnaces: High-temperature muffle furnaces and box furnaces for R&D. Fast heat-up rates allow for quick thermal cycling experiments. Heat Treatment: Hardening and annealing of steel parts. Provides a clean, electric heat source without carbon potential issues. Aluminum Casting: Holding furnaces for molten aluminum. Using protection tubes to prevent direct contact with metal. HT-Heater vs Standard Market SiC Rods Feature HT-Heater (Premium Grade) Standard Market Grade Your Advantage Cold End Tech Impregnated Si Metal Simple Spray Coat Terminals stay cool, no burning Aging Rate Slow (Surface Glazed) Fast Longer replacement intervals Resistance Matching Precision Grouping (±0.2Ω) Random Mix Uniform furnace temperature Density High Density Porous Better oxidation resistance Manufacturing Experience 30 YEARS EXPERIENCE New factories Stable firing process Quality Assurance MULTIPLE RIGOROUS QUALITY CHECKS Visual only ZERO DEFECT DELIVERY Installation & Integration Guidelines Handling: SiC elements are hard but brittle. Handle with extreme care to avoid mechanical shock. Install freely—ensure the mounting holes are large enough to allow the rod to expand and contract without binding. Resistance Matching: Always replace SiC elements in matched sets. Mixing old (high resistance) and new (low resistance) rods in the same zone will cause the new rods to overload and fail prematurely. Power Supply: Because SiC resistance increases with age, a Variable Voltage Power Supply (SCR or Transformer) is highly recommended to maintain constant power output over the heater’s life. Start-up: Ramp up temperature slowly to dry out moisture and prevent thermal shock. Customer Success Stories Case 1: Electronic Ceramics Manufacturer (Japan) Application: Tunnel Kiln for MLCC sintering (1300°C). Challenge: Rapid aging of competitor rods caused frequent furnace shutdowns for voltage adjustment. Solution: HT-Heater Anti-Aging SiC Rods. Results: SERVICE LIFE EXTENDED BY 40%. “The resistance stability is impressive. HT-Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS.” Case 2: Glass Factory (USA) Application: Forehearth heating. Challenge: Cold ends were overheating and melting the aluminum braided straps. Solution: Low-Resistance Cold End SiC Elements. Results: NO TERMINAL FAILURES. “The cold ends actually stay cold. 30 YEARS MANUFACTURING EXPERIENCE saved our connection straps.” Case 3: University Research Lab (Germany) Application: 1600°C High-Temp Box Furnace. Challenge: Need custom U-shape elements for a small chamber. Solution: Custom fabricated U-Type SiC heaters. Results: PERFECT FIT & THERMAL PROFILE. “High purity material suitable for our clean experiments. Excellent quality assurance.” Pricing & Procurement Options Standard Production: MOQ 10 pieces. BACKED BY 30 YEARS MANUFACTURING EXPERIENCE ensures consistent quality. Discounts for 50 units. Standard models in stock. Lead Times: Standard: 7-10 days production. Custom: 10-15 days. Samples: 5-7 days. Rush service available for urgent requirements. Global Logistics: Worldwide shipping via UPS, DHL, FedEx, EMS, TNT or the shipping agent as your request. Every shipment backed by 30 YEARS MANUFACTURING EXPERIENCE. Sample Orders: Available for testing. Contact sales for pricing. All samples UNDERGO MULTIPLE RIGOROUS QUALITY CHECKS. Global Certifications & Compliance CE Marking Conforms to European directives LVD Compliance Electrical safety requirements RoHS Compliant Environmentally safe materials ISO 9001 Rigorous quality control processes Quality Documentation: Certificate of Conformity and resistance matching report available. Every unit UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS before shipment. Comprehensive After-Sales Support Warranty: 1 Year Standard Warranty against manufacturing defects. Technical Support: Furnace connection diagram support (Series/Parallel/Star/Delta) and resistance calculation. Service Network: BACKED BY 30 YEARS MANUFACTURING EXPERIENCE. Global technical support available. Ready to Power Your High-Temp Furnace? Next Steps: 📧 Request Custom Quote – Specify diameter, length (OL/HZ/CZ) and resistance 🔧 Free Connection Design – Optimize your furnace circuit 📦 Order Matched Set – Ensure uniform heating 📞 Contact SiC Experts – Response within 2 hours Leading Manufacturer & Export of Industrial Heaters Providing A One Stop Solutions To All Industrial Heaters Needs SINCE 1990 Professional Heater Producer | Our Products Undergo Multiple Rigorous Quality Checks