customized heat resistant stable Top Hat step shaped Neodymium Magnet

customized heat resistant stable Top Hat step shaped Neodymium Magnet 

These powerful top-hat neodymium magnets are perfect for a wide range of uses. Their distinctive shape blends the features of both disc and cylinder magnets, offering exceptional versatility. Whether for DIY projects, crafts, engineering, manufacturing, or scientific applications, these magnets provide reliable performance.

Understanding Neodymium Magnets

Neodymium (NdFeB) magnets are known for their exceptional magnetic strength, making them the strongest type of permanent magnet on the market. Their compact size allows them to deliver high magnetic force even in space-constrained applications. In construction, they help securely position metal components during assembly, while in the medical sector, they play a vital role in the consistent performance of imaging systems and sensitive equipment. From everyday home tasks to demanding industrial operations, these magnets ensure dependable, long-lasting functionality.

Top Hat Neodymium Magnet

These customized heat resistant  premium quality stable Top Hat step shaped Neodymium Magnets  are designed for applications that demand a strong magnetic hold within a recess or hole, offering both stability and easy removal. Their unique shape makes them perfect for magnetic holding systems—the wide base ensures a secure anchor, while the smaller top section allows for attaching additional components, ideal for manufacturing and assembly lines.

In fastening solutions, the broad base locks firmly into place within a recess, while the slimmer top remains flush with the surface for a neat and secure fit. These tailor-made high temperature resistance  stable Top Hat step shaped Neodymium Magnets also perform exceptionally well in tool holders and mounts, where the base adheres tightly to a surface, and the top provides a powerful magnetic grip to keep tools or metal objects securely in place.

Magnet Grade: N52

N52 neodymium magnets are among the most powerful available, with an impressive energy product of up to 52 MGOe. Known for their exceptional magnetic strength, they are ideal for demanding uses like high-performance motors, magnetic couplings, and advanced sensor systems. These magnets are widely trusted in aerospace, automotive, and automation industries, where consistent, high-force performance is essential. Their strong and stable magnetic field makes them an excellent choice for precision devices and other applications where maximum strength and reliability are key.

Protective Coating: Ni-Cu-Ni

These Ni-Cu-Ni plated neodymium magnets feature a robust triple-layer coating that shields the neodymium core from moisture and oxygen, preventing corrosion over time. The polished, glossy finish adds aesthetic appeal while ensuring reliable performance in environments with mild moisture exposure. For harsher applications where greater durability is required, epoxy coatings may be more suitable for long-term protection.

APPLICATION EXAMPLES

Material Neodymium (NdFeB)

Product Name: customized heat resistant stable Top Hat step shaped Neodymium Magnet
Magnetic Grade: N52 (Br ≥ 14.8 kGs, Hcj ≥ 12 kOe)
Thickness: L20mm x 10mm x 10mm
Dimensional Tolerance: Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm

Magnetisation Direction: Axially Magnetised
Operating Temperature: ≤80°C (high-temp version available)
Density: ≥7.5 g/cm³
Surface Magnetic Field: 3800 ±200 Gauss (measured with TM-801 Gauss meter)
Magnetic Flux: 2.3 mWb (measured with fluxmeter)

Manufacturing Process

The product is manufactured through the following key processes:

● A high-speed grinding wheel shapes the magnet's surfaces with tight dimensional tolerances.

● Coolant fluid is applied to control heat, reduce surface stress, and ensure a smooth finish.

● The result is a uniform, precisely dimensioned magnet with clean edges—ideal for high-performance applications.

This precision step is essential for ensuring that the final magnets meet strict quality standards for use in motors, sensors, electronics, and aerospace components

Surface Treatment & Plating

To enhance corrosion resistance and appearance:

Default Plating: Triple-layer Ni-Cu-Ni (customizable).

Standard Thickness: Ni (3μm) + Cu (5μm) + Ni (4μm).

Optional Plating: Single-layer Zn (5μm) for cost-sensitive projects.

Features:

✔ Salt spray & oxidation resistance

✔ Increased surface hardness (scratch-resistant)

✔ Improved gloss (ideal for exposed components)

Appearance & Dimensional Inspection

Visual Inspection: Under standardized lighting, trained QC staff check for cracks, chipping, inclusions, pores, or oxidation

Image Measurement System: High-res cameras and algorithms conduct non-contact 2D measurements, especially for complex or irregular shapes, ensuring efficiency and objectivity in mass production

Applications

Electric Motors & Generators
Application: Precision-engineered magnets are employed in stators, rotors, and brushless DC motors to enhance magnetic flux density, efficiency, and torque performance.

Consumer Electronics
Application: High-performance neodymium magnets are integrated into speakers, haptic systems, vibration motors, and sensors, contributing to compact design and reliable functionality.

Packaging & Transportation

Defect Elimination: 100% inspection using calipers, projectors, visual checks, and automated systems to reject cracked, chipped, oxidized, or coated-defective magnets.

Uniform Magnetization & Structured Arrangement: Magnets are uniformly magnetized and arranged for optimal packaging based on customer requirements to ensure performance and facilitate automated assembly.

Vacuum Sealed Packaging: Multi-layer vacuum sealing with moisture barriers, desiccants or nitrogen, prevents corrosion and magnetic interference during storage and shipping.

Customized Outer Packaging: Shock-proof, moisture-resistant, and anti-magnetic leakage packaging (e.g., multilayer cartons, plastic boxes, metal shielding) ensures compliance with international logistics standards. Each box includes a product list, labels, and tracking codes.

Frequently Asked Questions:

Q: How to choose the correct magnetization direction?

Axial Magnetization: Magnetic lines flow through thickness — best for concentrated fields

Radial Magnetization: Magnetic lines radiate outward — for uniform field distribution

Multipole Magnetization: Multiple poles along circumference — for complex fields (e.g., motors, sensors)

Q: What is the maximum working temperature of a ring magnet?

Standard N-series: up to 80°C

High-temp grades (SH/UH/EH): up to 150°C–230°C

Dysprosium-enriched formulations can further enhance temperature resistance

Q: Does magnetism decay over time?

Under normal conditions (room temp, dry, no heavy vibration), NdFeB magnets exhibit excellent time stability (<5% loss over 10 years). However, factors like:

● Temperature overrun

● Strong external magnetic fields

● Surface corrosion

With deep expertise in magnetic materials, we deliver solutions for industries like EVs, smart manufacturing, and electronics. Our strong technical capabilities and product consistency have earned the trust of customers worldwide.

Usage Precautions？

● Handle gently: Avoid impacts/drops (brittle material).

● Prevent pinching: Slide magnets apart—do not pry.

● Polarity check: Install correctly to avoid malfunctions.

● Avoid moisture/acids: Store in dry, mild environments.

● Keep away from sensitive devices: Hard drives, IC cards, pacemakers, etc.

Customization & Services

● Custom magnet size, shape, and coating (layers, thickness, color)

● Tailored magnetization direction and field strength

● Laser engraving service for logos or serial numbers

● Packaging and suction force testing for special applications

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:+86 180 3822 5893

Email: info@jinconn.com

 Website: www.jinconnmagnet.com

 Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan Cit