Product Overview
Engineered for precision and power, this high torque output heat resistant round countersunk magnet is crafted from premium-grade NdFeB (Neodymium Iron Boron), the most powerful commercially available magnetic material. With its central hole design, this industrual grade heat resistant round countersunk magnet is ideal for applications requiring secure mounting, alignment, or rotational balance-perfect for motors, sensors, audio equipment, robotics, and automation systems.
Key Features & Advantages:
Extreme Magnetic Strength
Manufactured with grades up to N52, delivering exceptional magnetic pull in compact dimensions.
01
High Dimensional Precision
Machined to strict tolerances, ensuring stable performance and reliable integration into mechanical systems.
02
Durable Surface Coating
Protected by a triple Ni-Cu-Ni plating, offering strong resistance to corrosion, oxidation, and wear-ideal for long-term use in both dry and humid environments.
03
Efficient Mounting
The central bore allows for easy screw fixing, shaft alignment, or nesting, providing versatility across industrial and consumer applications.
04
Wide Operating Range
Suitable for environments up to 80–200°C, depending on grade and coating, with low demagnetization loss over time.
05
Technical Parameters
|
Product Name |
heat resistant round countersunk magnet |
|
Magnet Grade |
N48 (Br ≥14.3 kGs, Hcj ≥ 10.8 KOe) |
|
Dimensions |
Y20x10x5mm |
|
Tolerance |
Length ±0.05 mm, Width ±0.05 mm, Thickness ±0.05 mm |
|
Operating Temperature |
≤ 80°C (High-temperature versions available) |
|
Density |
≥ 7.5 g/cm³ |
|
Surface Magnetic Field |
2600-4200Gauss |
|
Magnetic Flux |
1.5-3.5mWb |
Manufacturing Process
This high adhesive force heat resistant round countersunk magnet through the following procedures :
- Cutting & Shaping: Precision cutting based on design drawings ensures standard cylindrical structure, with center drilling for uniformity and performance.
- Chamfering & Deburring: Edge chamfering and burr removal enhance safety and assembly precision.
- High-Temperature Sintering: Conducted in atmosphere-controlled furnaces for enhanced density, mechanical strength, and magnetic properties.
Appearance & Dimensional Inspection Standards
- Manual measurement with micrometers or calipers
- Visual inspection under 800–1200 lumens
- CCD intelligent sorting system for full inspection
Reliability Testing
This strong magnetic force heat resistant round countersunk magnet through the following reliability tests:
- Impact Testing and Vibration Testing: Simulate shocks and vibrations during transportation and usage to ensure the magnet's reliability in working environments.
- High-Temperature Demagnetization Testing: Verify the magnetic stability of the magnet under high-temperature conditions to ensure long-term performance consistency.
- Damp Heat Testing: Expose the magnet to high-humidity environments to examine its moisture resistance and anti-corrosion capabilities.
Packaging Process & Instructions
- Defective products are removed after full inspection
- Approved magnets are magnetized and arranged uniformly
- Packed in boxes with custom quantities and labeling
- Each unit is vacuum-packed with anti-magnetic shielding and shock-absorbing pads
- Small boxes are packed into larger cartons offering moisture, impact, and EMI protection
- Packaging customization available
Application Fields
Motors & Generators
Applications: BLDC motors, servo motors, wind turbines, stepper motors, PMSMs
Benefits:
High magnetic flux for greater torque and smoother rotation
Central hole enables easy shaft mounting
Energy-efficient and thermally stable in demanding conditions
Sensors & Industrial Automation
Applications: Rotary and linear encoders, magnetic sensors, automation position detection
Benefits:
Consistent and focused magnetic field for precision sensing
Compact, integration-friendly design
High EMI resistance, suitable for harsh environments
Audio Devices & Acoustic Systems
Applications: Speakers, headphones, microphone magnetic systems
Benefits:
High-performance magnetic field enhances sound clarity and bass
Small size, strong force for compact design
Stable magnetism reduces harmonic distortion
Smart Home & Consumer Electronics
Applications: Smart locks, magnetic chargers, phone mounts, laptop hinge modules
Benefits:
Clean, reliable structure enhances product usability
Compatible with induction and proximity sensors
Customization & Services
▲ At Dongguan Jinconn Magnet, service is driven by engineering expertise and customer responsibility.
- One-on-one technical support from experienced magnet engineers
- Tailored NdFeB solutions based on application requirements
- Rapid prototyping and sample validation
- Post-delivery performance follow-up and improvement support
- Clear communication and efficient problem resolution
Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!
We're here to help!
Phone/WhatsApp/WeChat: +86 13829120676
Email: info@jinconn.com
Website: www.jinconnmagnet.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong, China
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