
Superior holding capacity temperature stable premium quality sintered Interlocking Tile shaped NdFeB Magnet is a specialized ceramic-based magnetic component known for its high electrical resistivity, exceptional temperature stability, and robust corrosion resistance. Its wedge geometry is optimized for integration into circular magnetic assemblies or rotor systems where space-saving layout and consistent field distribution are essential. These tailor-made precision engineered premium quality high remanence sintered Interlocking Tile shaped NdFeB Magnets offer stable performance without surface plating and are ideal for applications requiring long-term operation in harsh or high-temperature environments.
Name: NdFeB wedge-shaped Magnet
Material: Neodymium Iron Boron (Nd₂Fe₁₄B)
Coating: Usually NiCuNi (Nickel-Copper-Nickel) for corrosion resistance, which is visible in the image due to the shiny metallic surface.
Grade: Typically ranges from N35 to N52, depending on the magnet's strength.
Product Name | premium quality sintered Interlocking Tile shaped NdFeB Magnet |
Magnet Grade | N42 (Br ≥ 14.8 KGs, Hcj ≥ 10.5 KOe) |
Dimensions | D10-D5*1.5 (R2) |
Tolerance | L±0.05mm W±0.05mm T±0.05mm |
Working Temperature | ≤ 80°C (custom high-temperature versions available)
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Density | ≥ 7.5 g/cm³ |
Surface Magnetic Field | 1900 Gauss (measured with TM-801 Gauss meter, Japan)
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Magnetic Flux | 1.10 mWb (measured with fluxmeter)
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The manufacturing process of this precision customized heat resistant high torque output srtong magnetic force premium quality sintered Interlocking Tile shaped NdFeB Magnet are as following:
- Powder Preparation: Raw ferrite materials are mixed, calcined, and milled to micron-level powders.
- Pressing & Molding: Isostatic or dry pressing using wedge-shaped molds for precise geometry.
- Sintering: High-temperature sintering at 1200–1300°C for densification and grain bonding.
- Grinding & Finishing: Machining for dimensional accuracy and smooth wedge mating surfaces.
Ferrite magnets are inherently resistant to corrosion and oxidation, thus typically do not require surface coatings. For added protection or marking, the following may apply:
- Epoxy Resin Coating (optional): Adds wear and environmental resistance.
- Laser Engraving: For polarity, orientation or batch coding.
- Anti-rust Oil Treatment: Light oil film for storage under high humidity.

- Manual inspection with calipers and angle gauges
- Visual inspection under standard lighting (800–1200 lux)
- 2D imaging system for irregular geometry accuracy
- Magnetic field and polarity verification
- Custom fixture-based slot and wedge matching checks
- High-temperature aging test (200–250°C)
- Humidity exposure (up to 96 hrs at 95% RH)
- Demagnetization stability test under load
- Vibration and assembly stress testing

- Sorting and inspection before packaging
- Mated wedge pairs aligned and packed to preserve orientation
- Vacuum sealed or shrink-wrapped for moisture control
- Internal partitions or foam to prevent chipping
- Cartons labeled with grade, quantity, and orientation

- Brushless DC Motors (BLDC): Segment rotor rings for consistent torque and magnetic balance
- Generator Rotors: Wedge layout for compact flux path control
- Magnetic Couplings: Torque transmission in chemical pumps
- Household Appliances: Motors in air conditioners, washing machines, etc.
- Automotive: Power steering, windshield motors, seat actuators
- Fan Blowers and HVAC Systems: Cost-effective and stable rotor design
- Handle with care to avoid chipping; ferrite is brittle
- Avoid sudden temperature shocks post-sintering
- Store in dry environments away from alkaline substances
Contact Us:
Phone: +86 18038225892
Email: helen@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China




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