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Norceramic New Materials (Beijing) Co., Ltd

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China Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead
China Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead

  1. China Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead
  2. China Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead
  3. China Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead

Low‑Contamination Si3N4 Grinding Rotor Silicon Nitride Ceramic Rotor for Bead

  1. MOQ: 1 Piece
  2. Price: $1.5~$5000 Per Piece
  3. Get Latest Price
Weight Depends on size and material density
Packaging Details Wooden Cages or Heavy Carton
Thermal shockresistance High
Temperatureresistance Up to 1400°C or higher
Finish Smooth Surface
Material Silicon Nitride
Shape Customized
Supply Ability 20 Pieces per Month
Surface Roughness Ra0.3
Usage Power Generation, Electric Vehicles (EV), Aerospace, Chemical Processing, New Energy
Type Custom Ceramic Rotor Component
Durability High durability under high temperature conditions
Payment Terms T/T
Tolerance ±0.02mm
Color Typically Black or Grey
Delivery Time 10-15 Work Days
Chemical resistance Resistant to acids, alkalis, and molten metals
Size Various sizes available
Certification ISO9001
Place of Origin Handan
Brand Name Norcera

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  1. Product Details
  2. Company Details

Product Specification

Weight Depends on size and material density Packaging Details Wooden Cages or Heavy Carton
Thermal shockresistance High Temperatureresistance Up to 1400°C or higher
Finish Smooth Surface Material Silicon Nitride
Shape Customized Supply Ability 20 Pieces per Month
Surface Roughness Ra0.3 Usage Power Generation, Electric Vehicles (EV), Aerospace, Chemical Processing, New Energy
Type Custom Ceramic Rotor Component Durability High durability under high temperature conditions
Payment Terms T/T Tolerance ±0.02mm
Color Typically Black or Grey Delivery Time 10-15 Work Days
Chemical resistance Resistant to acids, alkalis, and molten metals Size Various sizes available
Certification ISO9001 Place of Origin Handan
Brand Name Norcera
High Light custom silicon nitride ceramic ,custom silicon nitride ceramics ,high durability silicon nitride ceramic

High Wear‑Resistant Low‑Contamination Grinding Rotor Silicon Nitride Ceramic Rotor for Sand Bead Mill 


Our silicon nitride (Si₃N₄) ceramic rotor is a premium core component for bead mills, engineered for high‑speed ultra‑fine grinding. It delivers outstanding abrasion resistance, minimal material wear and extremely low contamination. Ideal for lithium‑ion battery materials, ceramic slurry, pigments and high‑purity chemical dispersing, greatly extending service life and improving grinding stability compared to metal rotors.

Si₃N₄ Silicon Nitride Rotor for Bead Mill

Replace conventional metal rotors with high‑performance silicon nitride (Si₃N₄) ceramic rotors to upgrade your bead‑mill grinding performance.

Manufactured from high‑density sintered silicon nitride, this rotor features exceptional mechanical strength, high fracture toughness and excellent thermal‑shock resistance, reliably sustaining high‑speed rotation under heavy‑duty grinding conditions. Its ultra‑low wear rate drastically reduces metal impurity ingress into ground materials, making it perfect for high‑purity nano‑grinding and dispersion processes.


  1. Superior Wear Resistance: High Vickers hardness minimizes abrasion even when running with fine grinding beads, delivering far longer service life than steel or alloy rotors.
  2. Ultra‑Low Contamination: Near‑zero wear debris preserves product purity, critical for battery cathode/anode materials, ceramic ink, advanced pigments and pharmaceutical raw materials.
  3. Light‑Weight High‑Strength: Lower density reduces rotational inertia, cutting vibration and lowering load on drive systems during high‑speed operation.
  4. Excellent Chemical Stability: Resists acid, alkali and solvent corrosion; performs stably in diverse slurry chemistries without chemical reaction with processed materials.
  5. Great Thermal Shock Resistance: Handles heat generated by intensive grinding, resisting cracking and deformation during continuous long‑run production.




Si3N4 Ceramic Parts are a man made compound synthesized through several different chemical reaction methods. they are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance.


■ Superior High-temperature Stability

Supports continuous working temperature up to 1200°C and short-term extreme temperature resistance up to 1400°C. No softening, deformation or structural failure under long-term high-temperature service, far exceeding metal and ordinary ceramic parts.
■ Excellent Thermal Shock Resistance
Outstanding resistance to rapid heating and cooling. The integrated dense sintered structure effectively resists temperature impact, avoiding cracking and peeling caused by thermal stress, greatly improving service life in cyclic temperature working conditions.
■ High Fracture Toughness & Structural Strength
Higher bending strength and impact toughness than traditional oxide ceramics. It is not easy to crack or break under vibration, pressure and mechanical impact, ensuring stable structural support and protection performance.
■ Excellent Corrosion & Erosion Resistance
Inert chemical property, resistant to most acids, alkalis, high-temperature flue gas and molten metal erosion. No chemical precipitation or pollution, suitable for high-purity production and harsh corrosive environments.
■ Good High-temperature Insulation & Low Expansion
Reliable electrical insulation performance at high temperature. Low thermal expansion coefficient ensures stable size and fitting accuracy during temperature changes, avoiding loose fitting and failure.

Main Applications:

High-temperature furnace protection tubes, thermocouple insulating sleeves, metallurgical molten metal conveying and shielding tubes, semiconductor thermal processing equipment, new energy high-temperature modules, chemical anti-corrosion piping and industrial high-temperature insulating structural parts.



Silicon Nitride Material Sheet

Properties Units Silicone Nitride
Mechanical  Density gm/cc 3.2
Porosity % 0
Flexural Strength Mpa 830
Compressive Strength Mpa 2500
Elastic Modulus Gpa 310
Poisson's Ratio / 0.27
Hardness kg/mm2 1580
Fracture Toughness KIC Mpa *m 1/2 6.1
Thermal Heat Conductivity W/ m*k 30
Coefficient of Thermal Expansion 10⁻⁶/K 3.3
Specific Heat  j/kg*K /
Thermal Shock Resistance  °C  /
Max UseTemperature °C 1400
Electrical  Dielectric  Strength ac-kv/mm         /
Dielectric Constant / 8
Loss Tangent / /
Volume Resistivity  ohm•cm >1014



Features:

● High Hardness
Silicon nitride exhibits extremely high hardness, making it suitable for fields such as wear-resistant and cutting tools.

● Excellent Wear Resistance
Silicon nitride ceramic exhibits outstanding wear resistance, making it suitable for applications in high-wear environments.

● Superior Insulating Performance
Silicon nitride ceramic possesses excellent electrical insulation properties and chemical stability, making it widely used in the electronics and semiconductor industries.

● High Temperature Stability
It can maintain stability in high-temperature environments, making it suitable for applications like high-temperature heaters and furnaces.

Applications:
Rotating ball bearings and rollers bearings
Cutting tools
Engine components: valves, rocker arm pads, seal faces
Induction heating coil supports
Turbine blades, vanes, buckets
Welding and brazing jigs
Heating element components
Crucibles
Metal tube forming rolls and dies
TIG / Plasma welding nozzles
Weld positioners
Precision shafts and axles in high-wear environments
Thermocouple sheaths and tubes
Semiconductor process equipment


Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler

  • Year Established:

    2017

  • Employee Number:

    80~120

  • Ecer Certification:

    Verified Supplier

Norceramic New Materials supplies high-performance ceramic materials and precision components for research, prototyping, and industrial production. Our products includes pyrolytic and hot-pressed boron nitride, silicon carbide, alumina, zirconia, and other specialized ceramics, with standard product... Norceramic New Materials supplies high-performance ceramic materials and precision components for research, prototyping, and industrial production. Our products includes pyrolytic and hot-pressed boron nitride, silicon carbide, alumina, zirconia, and other specialized ceramics, with standard product...

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Get in touch with us

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  • Norceramic New Materials (Beijing) Co., Ltd
  • Room A410, No.1 Juhe Sixth Street, Jufuyuan Industrial Park, Tongzhou Economic Development Zone, Tongzhou District, Beijing, P.R.China
  • https://www.nor-ceramics.com/

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