Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
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WC-Ni Zero Magnetic Interference Precision Locating Component For Semiconductor & Medical
——Permeability <1.002 · Inner Bore Tolerance ±0.001mm · MRI & Semiconductor Grade
When Precision Location Meets Magnetic Field Interference
Engineered with a WC-Ni zero-magnetic formulation, our carbide inner diameter rings deliver absolute magnetic immunity (Permeability <1.002) and sub-micron bore accuracy. They are the ultimate solution for precision fixturing, guiding, and sealing in MRI equipment, semiconductor wafer handling, and aerospace systems, eliminating the risks of magnetic attraction and positional drift inherent in conventional materials.
▸ Base Material: WC-10Ni Zero-Magnetic Grade Carbide
▸ Magnetic Properties:
- Permeability (μ): <1.002
- Remanence (Br): <0.03 mT
- Coercivity (Hc): <10 A/m
▸ Physical & Mechanical Properties:
- Hardness: 90 - 92 HRA (Equivalent to 1750-1850 HV)
- Density: 14.8 - 15.0 g/cm³
- Thermal Expansion Coefficient: 5.5 × 10⁻⁶ /K
- Compressive Strength: >4500 MPa
| Parameter | Our Non-Magnetic ID Ring | Stainless Steel 316 Ring | Standard Carbide Ring | Key Advantage |
|---|---|---|---|---|
| Permeability (μ) | <1.002 | ~1.02 - 1.05 | ~1.5 - 2.0 | Zero Magnetic Pull Force |
| ID Tolerance | ±0.001mm (H5) | ±0.01mm (IT7) | ±0.005mm (H6) | 10x Higher Precision |
| Wear Life | >5x Longer | Baseline | 2x Longer | Maximizes Uptime |
| Thermal Stability | 0.001mm/100°C | 0.012mm/100°C | 0.003mm/100°C | Stable in Thermal Cycles |
| Corrosion Resistance | Excellent | Good | Good | Suitable for Harsh Media |
Wafer Handling & Alignment: Precision locating rings in wafer chucks and stages.
Vacuum Robotics: Wear-resistant, non-magnetic bushings for EFEM and transfer robots.
Metrology Equipment: Reference rings for precision measuring instruments.
MRI & CT Scanner Components: Non-magnetic guides, bearings, and spacers inside the bore.
Surgical Robotics: Precision joints and articulation rings requiring zero EMI.
Analytical Instruments: Sample holders and rotors in mass spectrometers.
Guidance System Components: Stable, non-magnetic housings and spacers.
Satellite Mechanisms: Bearings and isolation rings for reaction wheels and antennas.
Particle Physics: Beamline components and experimental fixtures.
Materials Science: Fixtures for sputtering systems and vacuum furnaces.
