Customized high magnetic force radially magnetized sintered Arc Segment Magnet
1. Product Overview
Customized heat resistant high magnetic force stable Radially magnetized sintered Arc Segment Magnets redefine high-performance magnetic applications through unique geometric flexibility and precise magnetic circuit design, supporting fully customized forms. These precision customized high magnetic force corrosion resistance radially magnetized sintered Arc Segment Magnets’ multi-pole magnetization and complex structural engineering enable accurate magnetic field control, making them indispensable in cutting-edge fields like medical microsystems and robotic joints.
More specifically, with the hole, they may be referred to as Wedge Arc Magnets with Central Bore.
These tailor-made high temperature resistant powerful radially magnetized sintered Arc Segment Magnets are engineered for high-performance applications where high magnetic strength and precise geometry are critical. Key use cases include:
Electric Motors (BLDC, PMSM)
Magnetic Couplings and Pumps
Industrial Automation
2. Technical Parameters
Product Name | Customized high magnetic force Radially magnetized sintered Arc Segment Magnet |
Magnet Grade | N40 (Br ≥13.5 kGs, Hcj ≥10.8 kOe) |
Dimensions | 13mm × 54mm (Customizable) |
Dimension Tolerance | L±0.05mm, W±0.05mm, T±0.05mm |
Operating Temperature | ≤80°C (High-temp versions available) |
Density | ≥7.5 g/cm³ |
Surface Magnetic Field | 3,800 Gs ±200 Gs (TM-801 Gauss Meter) |
Flux Value | 2.0 mWb (Fluxmeter-tested) |
3. Manufacturing Process
Special-Shaped Forming:
-Compression Molding: Powder cold-pressed at 800-1,500 MPa → Regular complex shapes
- Extrusion Molding : Powder heated to 50-100°C → Injected into molds → 90-95% theoretical density (Ideal for elongated/tubular shapes)
Sintering & Post-Processing:
- Vacuum Sintering:
1050-1180°C at ≤10⁻³ Pa → >98% theoretical density
4. Surface Treatment & Plating
- Electroless Nickel (EN):
Autocatalytic Ni-P alloy → Uniform coating (±1μm) for deep/blind holes
- DLC Coating:
Magnetron-sputtered carbon film → HV2000-3000 hardness, <0.1 friction coefficient (For high-speed rotors)
5. Appearance & Dimensional Inspection
Quality control protocol:
- Manual inspection (micrometer/caliper)
- Visual inspection (800-1,200 lux, 20-750px distance)
- 2D optical measurement (irregular geometries)
6. Reliability Testing
Environmental Adaptability Testing
Temperature Resistance Test: Magnets are subjected to extreme temperature conditions, typically through thermal cycling between -40°C and +80°C, to assess changes in magnetic and physical properties.
Humidity Exposure Test: Magnets are placed in environments with high relative humidity (≥ 90%) for a specified duration to evaluate any signs of rust, corrosion, or degradation in magnetic performance.
Salt Spray Test: To simulate harsh conditions such as coastal environments, magnets are exposed to salt spray atmospheres to examine their corrosion resistance and long-term durability.
7. Packaging Process
Magnetic-safe packaging:
Reject defective items
Magnetize & align conforming products
Custom quantitation/labeling per box
Vacuum sealing + magnetic shields/buffer pads
Moisture/collision/interference-proof master carton
8. Application Fields
- Automotive: Sensors (crankshaft/camshaft), solenoids, motors
- Consumer Electronics: Acoustic devices, wearables
- Medical: MRI systems, minimally invasive surgical robots
- Aerospace & Defense: Satellite attitude control, drone motors
10. Usage Precautions
- Handling: Avoid drops/impacts (brittle material)
- Safety: Use sliding motion (pinch hazard prevention)
- Installation: Verify polarity via size markings
- Storage: Dry environment; avoid heat/acids/alkalis
- Isolation: >750px from pacemakers/HDDs/IC cards
11. Customization & Services
- Dimensions/shapes/coatings (layers, thickness, color)
- Polarity/magnetic strength customization
- Laser marking (logos/serial numbers)
- Application-specific encapsulation & pull-force testing
12.Why choose Jinconn magnet?
As an industry leader in high-performance magnetic materials, Dongguan Jinconn New Materials Holdings Co., Ltd has core products widely applied in new energy vehicle drive systems, intelligent manufacturing precision components, 5G communication equipment, industrial automation control modules, and high-end medical devices. With excellent performance and stable quality, these products have gained the trust of high-end customers at home and abroad.
The company focuses on R&D, production, and sales of magnetic materials, committed to building an "R&D-production-application" ecological chain through technological innovation, empowering the global intelligent industry, and striving to become an industry benchmark.
We are pleased to offer free customized magnet solutions tailored to your specific needs.
Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!
Contact Us:
Phone: +86 18038225892
Email: helen@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China
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