Silicon Nitride Components
Precision-Engineered Si₃N₄ Ceramic Parts for Extreme Operating Conditions
Cerafra manufactures a full range of silicon nitride ceramic components engineered for the industries that push materials the hardest — high-temperature furnaces, precision bearings, molten-metal handling, and high-speed machining. Built from our own high-purity Si₃N₄ powder and shaped through precision forming, sintering, and fine grinding, every component combines high hardness, excellent thermal shock resistance, and long service life — properties that conventional metals and oxide ceramics simply cannot match.
Why Engineers Choose Silicon Nitride Components
- Withstands extreme heat — stable operation up to 1200°C without softening or deforming
- Outstanding wear resistance — Vickers hardness (HV10) of 1400–1500, far exceeding steel and alloy tooling
- Chemically inert — resists acids, alkalis, salts, and molten non-ferrous metals such as aluminum, zinc, and copper
- Electrically insulating and non-magnetic — ideal for precision, anti-static, and magnetically sensitive environments
- Low thermal expansion, high thermal shock resistance — dimensionally stable through rapid heating and cooling cycles
Product Range
Cerafra's silicon nitride component line covers positioning, thermal protection, wear, and cutting applications across ten core product families:
- Guide Pins — high-precision locating pins for mold positioning and assembly datums in die-casting and sintering furnaces
- Thermocouple Protection Tubes — corrosion- and thermal-shock-resistant sheaths for accurate temperature monitoring in molten metal and furnace environments
- Heaters / Ignitors — fast-response ceramic heating and ignition elements for appliances and industrial burners
- Bearing Balls — rolling elements for hybrid and full-ceramic bearings, offering higher speed limits and 3–5x the fatigue life of steel
- Grinding Balls — high-density, low-wear media for fine and ultra-fine material milling
- Ceramic Tiles for Dewatering Elements — abrasion-resistant wear tiles for paper machine dewatering systems
- Classifying Wheels — precision wheels for powder classification equipment
- Cylinder Liners — wear-resistant liners for high-load mechanical applications
- Cutting Tools — high-hardness inserts for machining cast iron and hard-to-cut materials
- Insulators — electrically insulating ceramic parts for high-temperature electrical systems
Need a geometry that isn't listed? Our engineering team also produces fully Custom Products to your drawings and specifications.
Built on Decades of Materials Know-How
Every component starts with the silicon nitride powder grades developed in-house — including our CF-1A, CF-B, and CF-HQ series — giving Cerafra full control over purity, grain structure, and final mechanical performance. This vertical integration, backed by our R&D and quality management systems, ensures each finished part meets tight dimensional tolerances and consistent batch-to-batch performance.
Industries We Serve
Cerafra's silicon nitride components are trusted across Automotive, Metallurgical Processing, Energy, Precision Processing, Paper Industry, Semiconductor, and Appliance manufacturing — anywhere metal fails under heat, wear, or corrosion.
Request a Quote
Tell us your operating conditions, dimensions, and volumes, and our team will recommend the right silicon nitride grade and geometry for your application.
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