Description
Silicon Nitride Si₃N₄ Igniter is a high-performance ceramic ignition and heating solution designed for demanding industrial applications. Manufactured using advanced hot-press silicon nitride (Si₃N₄) ceramic technology, it delivers rapid heating response, high temperature capability, excellent electrical insulation, and outstanding mechanical strength in a compact, reliable structure.

Compared with traditional metal heating elements, silicon nitride igniters feature lower thermal inertia, higher surface load, superior thermal shock resistance, and significantly longer service life. These advantages make them especially suitable for continuous operation and high-frequency ignition cycles in harsh industrial environments.
Electrical Performance Parameters
- Rated Voltage: 55V – 250V
- Frequency: 50 / 60 Hz
- Rated Power: 250W – 650W
- Insulation Electric Strength:
No breakdown at room temperature under 2500V, 50Hz for 1 minute
Key Performance Characteristics
- Hot-pressed silicon nitride ceramic substrate
- High-temperature mechanical strength
- Excellent thermal shock resistance
- Strong acid and alkali corrosion resistance
- Superior electrical insulation and dielectric stability
- High thermal conductivity for efficient heat transfer
- Small size, compact structure
- Low thermal inertia for rapid heating response
- Designed for long-term, continuous industrial operation

Technical Specifications
| Parameter | Value |
|---|---|
| Flexural Strength (Room Temperature) | ≥ 900 MPa |
| Fracture Toughness | 6.0 – 8.0 MPa·m¹ᐟ² |
| Bulk Density | 3.20 – 3.40 g/cm³ |
| Volume Resistivity | ≥ 10¹⁴ Ω·cm |
| Relative Permittivity | 6 – 7 |
| Thermal Conductivity | 23 – 25 W/(m·K) |
| Thermal Expansion Coefficient | 3.1 × 10⁻⁶ /°C |
| Hardness | HRA 92 – 94 |
Mechanical Properties
- Hardness (HRA): 92.0 – 94.0
- Fracture Toughness: 6.0 – 8.0 MPa·m¹ᐟ²
- Flexural Strength: ≥ 900 MPa
Application Range
- Industrial ignition systems
- Combustion and burning apparatus
- Mold heating systems
- Packaging machinery
- Tobacco processing equipment
- Petrochemical industry equipment
- General high-temperature industrial heating devices
Use Cautions
- Rapid quenching and sudden heating cycles are strictly prohibited
- Do not splash water or other liquids onto the heating element at high temperature
- Ensure stable voltage supply and proper installation conditions

Frequently Asked Questions (FAQ)
Q1: Are you the manufacturer of the BLK-C1-SN-300 silicon nitride igniter?
Yes. We are a professional silicon nitride ceramic heating element manufacturer and source factory, providing stable production and quality control for global B2B clients.
Q2: Do you offer OEM or customized solutions?
Yes. We support OEM and ODM services, including customization of power, voltage, dimensions, connectors, and application-specific designs.
Q3: Is this product suitable for wholesale and bulk orders?
Absolutely. We provide factory-direct wholesale supply, long-term cooperation, and consistent batch production for distributors and equipment manufacturers.
Q4: What industries commonly use this igniter?
It is widely used in industrial heating, ignition systems, molds, packaging machinery, petrochemical equipment, and other high-temperature applications.
Q5: Why choose silicon nitride igniters over metal heating elements?
Silicon nitride igniters offer faster heating, higher temperature resistance, superior insulation, corrosion resistance, and longer service life, making them ideal for harsh industrial environments.
Thanks to its compact design, strong corrosion resistance, and stable performance at elevated temperatures, the Silicon Nitride Si₃N₄ Igniter is widely used in industrial ignition systems, combustion equipment, molds, packaging machinery, industrial heating systems, and petrochemical applications.
Supplied directly by professional manufacturers and source factories, this product supports OEM customization, factory-direct production, bulk manufacturing, and global wholesale distribution, making it an ideal choice for equipment manufacturers, system integrators, and industrial B2B buyers.




