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Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Specifications
Brand Name :
Zhongli
Model Number :
SNB-01
Certification :
CE ISO
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
50-200 ton/month
Delivery Time :
within 15days
Packaging Details :
barrel
Final Fineness :
1 μm
Number Of Grinding Stations :
4
Max. Feeding Size :
10 mm
Capacity :
100 mL
Type :
Bench-top
Cooling System :
Air cooling
Speed :
0-450 rpm
Dimensions :
500 mm x 300 mm x 300 mm
Programmable Interval And Pause Times :
Yes
Weight :
30 kg
Power Supply :
220V, 50/60 Hz
Grinding Modes :
Dry/Wet
Description

Product Description

Non-Magnetic Silicon Nitride Balls: Perfect for MRI & Semiconductor Tools

In the ever-evolving world of technology, precision and reliability are paramount. This is especially true in industries such as MRI diagnostics and semiconductor manufacturing, where even the slightest interference can lead to significant setbacks. Enter non-magnetic silicon nitride balls—a solution that is rapidly gaining traction for its unique properties and unmatched performance.

Understanding Silicon Nitride Balls

Silicon nitride (Si3N4) is a ceramic material known for its impressive mechanical properties. It boasts high strength, excellent wear and corrosion resistance, and a lightweight structure, making it ideal for various industrial applications. One of its standout features is its non-magnetic nature, which is crucial in environments where magnetic interference is a concern.

Key Features of Silicon Nitride Balls

  1. Non-Magnetic Properties: Unlike steel balls, silicon nitride balls do not disturb magnetic fields, making them ideal for MRI equipment and semiconductor tools.
  2. High Strength and Durability: Silicon nitride's robust structure ensures longevity and reliability, reducing maintenance costs.
  3. Electrical Insulation: These balls prevent electrolytic corrosion, a common issue in electric motor applications.
  4. Low Thermal Expansion: This property allows for stable performance even in high-temperature environments.

Applications in MRI and Semiconductor Tools

MRI Equipment

Magnetic Resonance Imaging (MRI) is a critical tool in the medical diagnostic field. The precision of MRI machines is heavily reliant on the absence of magnetic interference. Silicon nitride balls, being non-magnetic, are perfect for components within MRI machines, ensuring accurate imaging without distortion.

Semiconductor Manufacturing

The semiconductor industry demands high-speed, precision manufacturing processes. Silicon nitride balls are used in bearings within semiconductor tools, where their lightweight and high-speed capabilities are essential. They reduce centrifugal force during bearing rotation, enabling faster operating speeds and enhancing productivity.

Advantages Over Traditional Materials

  • Reduced Centrifugal Force: The density of silicon nitride is less than half that of steel, which minimizes the centrifugal force during rotation. This feature is particularly beneficial in high-speed applications.
  • Enhanced Bearing Life: Silicon nitride balls have been shown to increase bearing life by 50% or more compared to steel balls, thanks to their wear resistance and durability.
  • Cost Efficiency: By reducing the frequency of replacements and maintenance, silicon nitride balls lower the total lifecycle cost of equipment.
Property Silicon Nitride (Si3N4) Steel (440C) Zirconia (ZrO2) Alumina (Al2O3)
Density (g/cm³) 3.2 7.8 6.0 3.9
Hardness (HV) 1,400–1,600 700–900 1,200–1,300 1,500–1,800
Fracture Toughness (MPa·m½) 6–7 15–20 7–10 3–4
Compressive Strength (GPa) 2.5–3.5 2.0–2.5 2.0–2.3 2.0–3.0

Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor ToolsNon Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

●Description:

Silicon Nitride Ceramic Ball is the most ideal bearing ball for bearing applications, due to the excellent properties of silicon nitride ceramics, it has many irreplaceable advantages comparing to traditional steel materials, such as: high mechanical strength, low wear loss, good self-lubrication, low density, high corrosion resistance, good electrical insulation etc.

Therefore, Silicon Nitride Balls are mostly used for some harsh working conditions: high speed/super speed bearings, high precision bearings, bearings in vacuum, high/low temperature bearings.

Moreover, Silicon Nitride Ceramic Balls can also used as valve ball or measurement balls in chemical pumps/high temperature pumps/metdering pumps.

●Physical Properties:

Chemical Composition:

Si3N4≥95%

Bulk Density:

3.2±0.05g/cm3

Elastic Modulus:

350GPa

Hardness Vickers:

1870HV

Bending Strength:

780MPa

Fracture Toughness:

7.2MPa·m1/2

Thermal Expansion Coefficient:

3.2 10-6/K

Thermal Conductivity:

25W/(m·K)

● Ball Sizes/Grade :

Size (mm)

Φ0.8-180

Grade

Vdws

SPH

Vdwl

Ra

G3

0.05-0.08

≤0.08

<0.13

0.01

G5

0.08-0.13

≤0.13

<0.25

0.014

G10

0.15-0.25

≤0.25

<0.5

0.02

G16

0.2-0.4

≤0.4

<0.8

<0.025

G20

0.3-0.5

≤0.5

<1

<0.032

G100

0.4-0.7

0.4-0.7

<1.4

<0.0105

Factory equipment

Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

Exhibition & Partner

Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

Case

Ship to South Korea

Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor ToolsNon Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

Ship to Spain

Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor ToolsNon Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

FAQ

1. What sizes and tolerances are available?

  • Diameter range: 0.5mm to 50mm (custom sizes possible).

  • Sphericity: As low as 0.1µm (Grade 5 for ultra-precision bearings).

  • Surface finish: Ra < 0.02µm (mirror polish for low friction).

2. Are silicon nitride balls FDA-approved for medical use?

Yes! Si3N4 is biocompatible (ISO 6474-1) and used in spinal implants, dental devices, and joint replacements due to its antibacterial properties.

3. How do I choose the right Si3N4 balls for my application?

Consider:

  • Load & speed requirements (dynamic/static stress).

  • Temperature range (Si3N4 excels in high heat).

  • Chemical exposure (resistant to most acids/alkalis).

  • Electrical insulation needs (non-conductive).

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Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

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Product Detail
Brand Name :
Zhongli
Model Number :
SNB-01
Certification :
CE ISO
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Contact Supplier
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools
Non Magnetic Silicon Nitride Balls High Chrome Steel Grinding Media For MRI & Semiconductor Tools

Guangzhou Zhongli Technology Co., Ltd

Verified Supplier
1 Years
guangzhou
Since 2017
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Planetary Ball Mill Machine, Stirred Ball Mill, Roller Ball Mill
Employee Number :
80~110
Certification Level :
Verified Supplier
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