Silicon Nitride Parts with Precision, Stability and Long Service Life
ADCERAX manufactures high-performance silicon nitride parts for demanding industrial use. We supply both standard and custom Si₃N₄ parts, including precision silicon nitride rods, durable silicon nitride crucibles for molten metal environments, and high-speed silicon nitride cutting tools for difficult-to-machine alloys.
With controlled materials, accurate machining and consistent quality, our parts deliver stability and long service life. Supported by factory-direct pricing, fast sampling and flexible customization, we help OEMs improve performance and reduce downtime.
🤝Send us your drawings or requirements, and our engineers will recommend the best silicon nitride solution for your application.
What is Silicon Nitride Parts?
Silicon nitride parts are engineered Si₃N₄ components designed to withstand extreme speed, temperature and mechanical stress. With high fracture toughness, low thermal expansion and exceptional wear resistance, they maintain dimensional stability where metals and oxide ceramics fail. These qualities make them essential for bearings, pumps, aluminum casting systems and other demanding industrial equipment.
Silicon Nitride Parts Properties
Silicon nitride (Si₃N₄) parts combine high fracture toughness, low thermal expansion, and exceptional resistance to heat, wear and thermal shock. Their lightweight yet strong microstructure keeps components stable under high speed, high load and extreme temperature cycling, making them ideal for demanding industrial equipment.
Silicon Nitride Parts Technical Sheet
| Si3N4 Type | Gas pressure sintering Si3N4 | Hot pressing sintering Si3N4 | High thermal conductivity Si3N4 |
| Density (g/cm3) | 3.2 | 3.3 | 3.25 |
| Flexture strength (MPa) | 700 | 900 | 600~800 |
| Young Modulus (GPa) | 300 | 300 | 300~320 |
| Poisson’s ratio | 0.25 | 0.28 | 0.25 |
| Compressive strength (MPa) | 2500 | 3000 | 2500 |
| Hardness (GPa) | 15 | 16 | 15 |
| Fracture toughness (MPa*m1/2) | 5~7 | 6~8 | 6~7 |
| Maximum working temperature (℃) | 1100 | 1300 | 1100 |
| Thermal conductivity (W/m*K) | 20 | 25 | 80~100 |
| Thermal expansion coefficient (/℃) | 3*10-6 | 3.1*10-6 | 3*10-6 |
| Thermal shock resistance (ΔT ℃) | 550 | 800 | / |
Advantages of Silicon Nitride Parts
Si₃N₄ parts maintain stiffness and precision under load, ensuring reliable performance in demanding assemblies and critical operations.
They stay structurally stable during rapid temperature changes, making them ideal for high-temperature and thermal-cycling environments.
High hardness and inertness allow Si₃N₄ components to resist abrasion and corrosion in pumps, valves and molten metal systems.
At only ~40% the density of steel, they reduce inertia, heat generation and energy loss in high-speed machinery for improved durability.
Types of Silicon Nitride Part We Supply
ADCERAX provides a wide range of silicon nitride mechanical parts, including rods, crucibles, cutting tools, ignitors, nozzles, ball valve components, hooks, welding rollers and other Si₃N₄ products. All items are produced with consistent quality standards and support both standard models and custom-made designs for diverse industrial requirements.
Si3N4 rods are used in structural supports, precision motion assemblies, furnace fixtures, and other high-temperature industrial systems.
- High strength and rigidity
- Strong thermal shock and wear resistance
- Custom sizes and finishes available
Silicon nitride crucibles are used in molten aluminum handling, alloy melting, and high-temperature sampling.
- Excellent Thermal Shock Resistance
- Non-Wetting & Corrosion Resistant
- High Strength at Elevated Temperatures
Si3N4 cutting tools are used for high-speed machining of cast iron, nickel alloys, hardened steels and other difficult materials requiring heat resistance.
- High Hot Hardness & Wear Resistance
- Excellent Thermal Shock Resistance
- Longer Tool Life in Difficult Materials
Silicon nitride ignitors are used in gas burners, industrial furnaces, heating systems and combustion units where fast ignition is required.
- Fast & Reliable Ignition
- Excellent Thermal Shock Resistance
- Long Service Life
Silicon nitride nozzles are used in molten metal delivery, die-casting gates, abrasive flow systems and high-temperature spraying.
- Excellent Wear Resistance
- High Thermal Shock Stability
- Non-Wetting & Corrosion Resistant
Silicon nitride ball valves are used in chemical pumps, corrosive fluid systems, high-temperature lines and abrasive media control where low wear,
- High Wear & Impact Resistance
- Excellent Chemical & Temperature Stability
- Long Service Life & Low Maintenance
Silicon nitride ceramic plates are used in high-temperature fixtures, furnace supports, wear panels and precision insulating components.
- High Strength & Thermal Stability
- Excellent Wear & Corrosion Resistance
- Reliable Electrical Insulation
Silicon nitride ceramic hooks are used in high-temperature handling, furnace fixtures, material support systems and corrosive processing lines.
- High Strength Under Heat
- Excellent Wear & Corrosion Resistance
- Stable Performance Under Thermal Cycling
Silicon nitride welding rollers are used in high-temperature welding lines, metal forming systems and material guiding stations.
- Excellent Wear & Heat Resistance
- Low Adhesion to Molten Metal
- High Strength Under Thermal Cycling
🚀Silicon Nitride Parts That Boost Output, Reduce Downtime and Cut Operating Costs.
Engineered for tough environments, our Si₃N₄ components deliver stable performance and extended service life across critical equipment. With precision manufacturing and rapid customization, ADCERAX helps you upgrade equipment efficiency and secure long-term productivity.
Silicon Nitride Parts Applications
Silicon nitride parts are used across mechanical engineering, manufacturing lines, industrial processing equipment, and laboratory systems. They serve in components such as spindles, pumps, bearings, fixtures, furnace tooling, measurement devices, and precision assemblies across a wide range of high-demand industries.
Mechanical Engineering
Application: Silicon nitride parts are used in high-speed spindles, bearings, pumps, and precision motion systems.
Challenges: Mechanical engineering systems often face heat buildup, friction, and dimensional drift in high-speed spindles, bearings, and pump assemblies. Metal parts lose stability under temperature cycling, causing vibration, premature wear, and 8–12 hours of downtime per shutdown, with frequent component replacements.
🧩ADCERAX Solution:
ADCERAX solves these issues with HIP-densified, precision-ground silicon nitride rods, rollers, balls, and wear parts. Tolerances of ±0.01–0.02 mm and Ra ≤ 0.2 μm surfaces ensure stable performance under load, heat, and long operating cycles. Our engineering team supports prototypes, reports, and consistent batch quality for continuous production.
Case Example: A European spindle manufacturer replaced steel balls with ADCERAX Si₃N₄ parts and reduced operating temperature by 32°C, extended service life from 4 to 14 months, and cut annual downtime by 78 hours—saving over €26,000 per year.
Manufacturing & Production Equipment
Application: Si₃N₄ components are used across metalworking, casting, moulding, and high-temperature processing equipment
Challenges: Manufacturers often struggle with tool wear, chipping, and thermal deformation during machining, forming, or continuous production. Metal or carbide parts lose stability at high temperature, reducing accuracy and causing unplanned stoppages that disrupt throughput.
🧩ADCERAX Solution:
ADCERAX supplies HIP-densified silicon nitride cutting tools, fixtures, rollers, pins, and wear components with tight tolerances and high fracture toughness. Their thermal stability and low wear rate maintain accuracy in long production runs, reducing tool changes and scrap.
Case Example: A U.S. metal processing plant introduced ADCERAX Si₃N₄ plates and tooling parts in a heat-treatment line. Component lifetime increased from 3 weeks to 11 weeks, production interruptions dropped by 42 hours per quarter, and the plant saved approximately $38,000 annually in replacement and downtime costs.
Industrial Machinery & Process Systems
Application: Si₃N₄ parts serve chemical pumps, vacuum systems, compressors, mixers, and fluid-handling equipment that require corrosion resistance and reliable sealing.
Challenges: Industrial systems—pumps, compressors, furnaces, and fluid-handling equipment—often experience corrosion, abrasion, and thermal shock that rapidly degrade metal parts. Frequent failures raise maintenance costs and shorten equipment service intervals.
🧩ADCERAX Solution:
ADCERAX provides silicon nitride nozzles, valves, plungers, sleeves, and insulation components engineered for severe conditions. HIP densification, high hardness, and chemical inertness ensure long-term stability against corrosive fluids, abrasive particles, and rapid temperature swings.
Case Example: A chemical pump manufacturer in Canada adopted ADCERAX Si₃N₄ plungers to replace hardened steel parts. Leakage events dropped to zero, component lifetime doubled from 6 months to over 13 months, and warranty claims were reduced by 67%. Overall operating costs decreased by more than $52,000 per year.
Laboratory & Research Equipment
Application: Laboratories rely on silicon nitride crucibles, rods, plates, and specialized components for thermal analysis, alloy melting, sampling, heating, and high-temperature experiments.
Challenges: Laboratories handling high-temperature processes, corrosive materials, or precision measurement often face contamination, cracking, or dimensional drift when using quartz, alumina, or metal parts. These failures delay experiments and raise consumable costs.
🧩ADCERAX Solution:
ADCERAX offers high-purity silicon nitride crucibles, plates, pins, probes, and small precision components with excellent chemical stability and minimal thermal expansion. They ensure clean, repeatable results under rapid heating, cooling, or aggressive chemical environments.
Case Example: A university materials lab switched to ADCERAX Si₃N₄ crucibles for alloy melting and high-temperature sampling. Cracking incidents dropped by 90%, test repeatability improved significantly, and crucible usage life extended from 12 cycles to more than 40 cycles. The lab reported saving approximately $7,500 per year in consumables and retesting labor.
Custom Si3N4 Ceramic Parts Manufacturer
ADCERAX specializes in custom silicon nitride parts (Si₃N₄) manufactured according to your drawings, dimensions and structural requirements. We support non-standard shapes, tight tolerances and special machining features for a wide range of industrial components.
Customization Options
Extra-large / Extra-small diameters, non-standard thicknesses, and ultra-long / ultra-short lengths.
Provide higher - level dimensional accuracy and concentricity control than the standard.
Flanges, steps, threads, drilling holes, grooves, etc.
Adjust the material according to the application requirements.
Polish and grind the surface to achieve a specific surface roughness.
Customization Process
Send us your drawing, CAD file, or physical sample with material grade, dimensions, tolerances, and quantity. Our engineers will evaluate the design and provide a detailed quotation with lead time and pricing.
Once the quote is approved, we proceed with sample prototyping (1–50 pcs) if needed, for testing and validation.
After sample approval or direct confirmation, we begin batch manufacturing using CNC machining, sintering, and polishing. All parts undergo dimensional checks, material purity testing, and surface finish inspection.
Finished products are securely packed and shipped via DHL/FedEx/UPS or your preferred method. We support global delivery with full documentation.
High-Performance Silicon Nitride Parts Supplier-ADCERAX
ADCERAX is a silicon nitride ceramic components manufacturer and supplier from China, offering factory-direct pricing, precise machining and fast global delivery. With advanced forming, HIP and grinding capabilities, we ensure consistent quality and reliable performance across a full range of Si₃N₄ components.
Competitive pricing with strict quality control from raw material sourcing to final delivery
Professional team providing comprehensive technical support and collaborative design
Small batch orders to large-scale production with complex geometries and tight tolerances
24-hour response and 24-hour dispatch for standard items, 3-7 weeks for custom orders.
ADCERAX integrates Si3N4 precision parts production, precision machining, HIP sintering and quality inspection into a unified workflow. We supply both standard and custom silicon nitride parts for structural, wear-resistant, and high-temperature applications — from prototypes to mass production.
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Precision Machining & Dimensional Control
Each silicon nitride component is CNC-machined and ground to meet strict tolerances and surface standards. This ensures stable fit, smooth motion, and reliable performance in demanding mechanical assemblies. -
Batch Consistency & Quality Verification
Every batch is inspected for density, hardness and microstructure uniformity. Controlled HIP and polishing processes maintain consistent part performance and reduce failure rates across diverse applications. -
Customization & Engineering Support
We provide custom Si₃N₄ part solutions based on drawings or samples, supporting non-standard shapes, tight tolerances and special surface finishes. ADCERAX’s engineering team assists with design refinement, material selection and packaging, ensuring fast delivery and dependable global supply.
ADCERAX produces silicon nitride parts (Si₃N₄) using advanced forming, HIP sintering and precision CNC grinding. Each component is built for high strength, tight tolerances and stable performance under load, speed and temperature. We ensure consistent batch quality, smooth surfaces and long service life—making our Si₃N₄ parts reliable for structural, wear-resistant and high-temperature applications.
| Manufacturing Capabilities Overview | |||
|---|---|---|---|
| Capability Item | Typical Value / Description | ||
| Material Grades | Pressureless- or HIP-sintered Si₃N₄ with dense, uniform microstructure. Hardness ≥1500 HV, fracture toughness > 6 MPa·m¹ᐟ², and density ≈ 3.2 g/cm³ — delivering high strength, thermal stability, and wear resistance for demanding ceramic parts. | ||
| Precision Machining | CNC grinding and lapping achieve tight tolerances within ±0.01 mm and flatness ≤0.005 mm. Mirror finishing to Ra ≤0.2 μm ensures smooth contact surfaces, low friction, and stable assembly performance for precision Si₃N₄ components. | ||
| Forming & Shaping | Advanced isostatic pressing and pre-sinter shaping support complex geometries, holes, slots, thin walls, and non-standard features. Suitable for both standard and custom silicon nitride part configurations used across industrial applications. | ||
| Flatness & Dimensional Control | Controlled sintering minimizes porosity and warpage, maintaining consistent dimensions and roundness under mechanical or thermal stress. Ideal for precision-fit structural, sealing, and bearing interfaces. | ||
| Surface Finishing | Precision polishing and ultrasonic cleaning yield defect-free surfaces with uniform roughness and stable contact. Each Si₃N₄ part batch is inspected for density, flatness, and dimensional uniformity to ensure consistent performance. | ||
FAQ
Our silicon nitride parts are made from pressureless-sintered or HIP-sintered Si₃N₄ with dense microstructure, high hardness, excellent thermal stability, and consistent mechanical properties across batches.
Yes. Silicon nitride structural parts are lighter, harder, and more thermally shock-resistant than metals or zirconia, making them ideal for high-speed, high-temperature, and wear-critical applications.
Most Si₃N₄ ceramic parts can be machined to ±0.01 mm, while precision interfaces can reach ±0.005 mm, depending on geometry and thickness.
Yes. We support custom silicon nitride parts, including non-standard dimensions, tight tolerances, complex shapes, blind holes, thin walls, and special surface finishes.
All Si₃N₄ parts undergo density, hardness, dimensional, surface roughness, and microstructure inspections. Additional NDT or customized testing is available upon request.
Most silicon nitride components operate reliably up to 1000°C, depending on design, load, and thermal cycling requirements.
Yes. Many Si₃N₄ components—such as crucibles, nozzles, and riser tubes—offer excellent non-wetting behavior, thermal shock resistance, and chemical stability in molten aluminum or corrosive environments.
Yes. We offer grinding, lapping, and mirror polishing for silicon nitride parts, achieving surface roughness as low as Ra ≤ 0.2 μm for sealing and precision-fit applications.
Standard parts ship within 3–5 days, while custom silicon nitride parts typically require 2–6 weeks, depending on complexity and surface finishing requirements.
Pricing for silicon nitride parts depends on dimensions, tolerances, complexity, and surface finishing. Small parts may cost a few dollars, while precision-machined components can range higher. Send your drawing for an accurate quote within 12 hours.
Absolutely. We provide sample units of silicon nitride parts for sale to support testing, assembly validation, and performance evaluation.
You can purchase silicon nitride parts and silicon nitride wear components directly from ADCERAX, a dedicated manufacturer and supplier in China. We produce custom and standard Si₃N₄ parts—including rods, crucibles, cutting tools, nozzles, plates, valves, and precision wear components—using advanced forming, HIP sintering, and CNC machining.
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