To receive a quotation, please provide:
Application (furnace type / process)■
Required temperature■
Element dimensions■
Power and voltage■
Atmosphere (air / Inert / reducing)■
Mounting configuration■
Quantity■
Our engineering team will design the optimal SiC heating solution for your system
Customized Solution
High-Temperature Electric Heating Solutions for Industrial Furnaces & Thermal Processes Extreme Temperature Capability. Superior Durability. Proven Industrial Performance.
Silicon Carbide (SiC) heating elements are high-performance ceramic electric heaters designed for operation in extreme temperature environments, typically in industrial furnaces and thermal processing systems.
Manufactured from high-purity silicon carbide through high-temperature recrystallization processes, these elements provide exceptional thermal conductivity, oxidation resistance, and long-term stability, making them a preferred solution for demanding industrial applications.
SiC heating elements are widely used where conventional metallic heaters cannot operate reliably, particularly in applications exceeding 1000°C and up to ~1600–1625°C.
At Isratherm Industrial Solutions, we supply silicon carbide heating elements from leading global manufacturers offering both standard geometries and fully customized designs for high-temperature processes.
Capable of continuous operation up to ~1600°C+ In oxidizing atmospheres.
Forms a protective silicon dioxide (SiO₂) layer at high temperatures, preventing degradation
Enables fast heat-up and uniform temperature distribution.
Resistant to deformation, oxidation, and chemical attack under proper operating conditions.
Performs well in aggressive environments including acids, alkalis, and process gases.
Handles rapid heating and cooling cycles with minimal damage.
Supports higher watt densities compared to many metallic heating elements.
SiC heating elements are primarily used in:
Industrial Furnaces
Heat treatment furnaces■
Sintering furnaces■
Annealing furnaces■
Vacuum furnaces■
Ceramics & Glass Industry
Kilns■
Glass melting and forming■
Ceramic sintering■
Metallurgy
Powder metallurgy■
Metal processing■
Alloy production■
Semiconductor & Electronics
Diffusion furnaces■
Crystal growth systems■
Chemical Industry
High-temperature reactors■
Catalyst processing■
SiC heating elements are available in multiple configurations:
Straight Rod (RR / ED Type)
Simple design■
Used in basic furnace layouts■
U-Type / Hairpin
Both terminals on one side■
Easy installation■
W-Type / Multi-Leg
Compact high-power design■
Suitable for high-load furnaces■
Spiral / Helical Elements
Increased surface area■
Improved efficiency■
DB / Double Rod Type
Optimized for uniform heating■
Reduced terminal losses■
Different geometries allow optimization of power distribution, temperature uniformity, and furnace design.
SiC elements are manufactured from:
High-purity silicon carbide (>99%)●
Recrystallized or reaction-bonded structures●
Dense ceramic bodies with low porosity●
They typically include:
Hot zone (heating section)●
Cold ends (lower resistance terminals)●
Metalized contact areas●
The hot zone is engineered for maximum thermal output, while cold ends reduce electrical losses
Operating Temperature
Must be matched to element type and atmosphere.
Atmosphere
Oxidizing vs. reducing environments affect lifespan.
Electrical Design
Resistance increases over time — must be considered in power supply design.
Aging Behavior
SiC elements gradually increase in resistance during operation.
Mechanical Handling
Brittle ceramic, requires careful installation.
Power Control
Often used with:
Thyristor (SCR) control●
PID temperature control●
Multi-zone systems●
Silicon carbide elements operate based on electrical resistance heating:
Electrical current passes through the SiC body■
The material’s resistivity generates heat■
Heat is radiated and conducted into the furnace environment■
SiC behaves as a semiconductive material, with resistance changing as temperature increases, initially decreasing and then increasing at higher temperatures.
This unique behavior allows:
Stable high-temperature operation●
Controlled heating performance●
Compatibility with advanced control systems●
At Isratherm, we provide:
Custom dimensions and geometries■
High-power furnace solutions■
Multi-zone heating systems■
Special coatings for aggressive environments■
Integration with control systems■
Replacement solutions for existing furnaces■
Supply from top-tier global manufacturers■
Expertise in high-temperature process heating■
Application-based engineering approach■
Support for furnace design and upgrades■
Reliable, long-life heating solutions■
A ceramic electric heater designed for very high temperatures.
Up to ~1600–1625°C depending on design.
Furnaces, kilns, and high-temperature processes.
Much higher temperature capability and longer life in extreme conditions.
Yes, resistance increases gradually (normal behavior).
Yes, most applications require tailored designs.
