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Silicon Nitride Extrusion Roller si3n4 Ceramic Guide Wheel

  • Offers excellent wear resistance and accuracy in extreme temperature conditions
  • An alternative to wheels made with conventional metal alloys
  • 60% lighter than steel
  • Delivers high strength and fracture toughness
  • Excellent thermal shock resistance
  • Resistant to wear and erosion
  • Exhibits nonmagnetic properties and electrical insulation
  • Corrosion and chemical resistant
  • Offers design flexibility for a customized solution
  • 0320

Shenzhen Haorui Industrial Technology Co., Ltd.

was established in June 2006. It is an enterprise specializing in R&D, manufacturing and sales of non-standard industrial ceramics, cemented carbide (tungsten steel), and various metal and non-metal precision mechanical parts. After more than ten years of development, we have accumulated rich industry experience and trained a group of professional technical personnel. It has a complete production process and quality management system, as well as a complete set of precision processing equipment and testing equipment. At present, it has more than 1,000 domestic and foreign customers, and has cooperated with more than 30 universities and research institutes. It has a high reputation and good reputation in the same industry, and the company's overall strength is in an industry leading position.
Business type
Manufacturer, Trading Company
Country / Region
Guangdong, China
Main Products Total employees
80-120 People
Total Annual Revenue
US$1 Million - US$2.5 Million
Year established
Product Certifications
-Test report
Main Markets

Silicon nitride ceramic wheel

Silicon nitride ceramics offer excellent thermal shock, extreme heat stress resistance, excellent wear resistance, good chemical resistance, and easier machining characteristics. It is always utilised in the production of refractory ceramic parts, corrosion resistant ceramic parts, ceramic seals, ceramic tools/blades for machining.
We supply a large range of silicon nitride ceramic components, including Si3N4 ceramic tubes, Si3N4 ceramic plates, Si3N4 ceramic rods, as well as a variety of complex silicon carbide ceramic structural components.
Main Characteristics: Wear resistance Corrosion resistance Electrical insulation Excellent mechanical strength Thermal shock resistance Main Applications Wear-resistant components Components for semiconductor devices Components for high temperature applications.

Application industry:

Machinery, electronic, semiconductor, chemical, petroleum, smelt.

Specific application:

Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.

Properties Of Silicon Nitride

Property Item Data Unit



Color Black/Grey -
Density 3.2 g/cm3
Bending Strength 750 MPa
Compressive Strength 3800 MPa
Elastic Modulus 290 GPa
Fracture Toughness 7 MPa m1/2
Weber Coefficient 15 m
Vickers Hardness 1700 HV 0.5



Coefficient of Line

Thermal Expansion

2 10-6 K-1

Thermal Conductivity

20 W/mK

Thermal Shock Resistance (Put in Water)

750 ΔT℃

Max Working Temperature




Volume Resistance at 20℃

>1014 Ωcm

Dielectric Strength

10×106 V/m

Dielectric Constant

- εr

One MHZ Dielectric

Loss Angle at 20℃

- tanδ



Nitric Acid(60%)90℃

1 WT Loss mg/cm2/day

Sulphuric Acid(95%)95℃

Caustic Soda(30%)80℃ 0.2

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Founded in June 2006, Shenzhen Haorui IndustriaI Technology Co.,Ltd. is a professional enterprise engaged in R&D, manufacturing and sales of non-standard industrial ceramics, hard alloys (tungsten steel) and various metal and non-metal precision machinery parts.

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