High energy density heavy duty rare earth bullet head shaped cone magnet

2025-7-15

1. Product Overview & Application Scenarios

We offer a wide range of magnet shapes, particularly high-performance rare earth neodymium magnets, with extensive customization options. Whether you require standard modifications (such as slots, chamfers, or holes) or intricate designs—including comma-shaped, L-shaped, C-shaped, arched, concave, or conical geometries—we can precisely manufacture them to meet your specifications.

Our advanced fabrication capabilities ensure your technical requirements are met, no matter how complex the design. For detailed pricing and feasibility discussions, please don’t hesitate to reach out.

2. Technical Specifications

- Product Name: High energy density heavy duty rare earth bullet head shaped cone magnet

- Magnet Grade: N48SH (Br ≥13.7 kGs, Hcj ≥20 kOe)  

- Dimensional Tolerance: +/-0.04  

- Operating Temperature: ≤150°C (High-temp versions available)  

- Density: ≥7.5 g/cm³  

- Surface Magnetic Field: 2,800 Gs  

- Magnetic Flux : 2.0 mWb  (Fluxmeter-tested)  

3. Surface Treatment & Coating Technology

To enhance this  tailor-made heat- resistance high energy density heavy duty rare earth bullet head shaped cone magnet’s  corrosion resistance, surface quality, and magnetic stability, the following treatments are used:

Edge Reinforcement: Laser cladding with nickel-based alloy at magnet seams (prevents electrochemical corrosion)

Edge Rounding: Reduces magnetic field distortion

Default Coating: Triple layer Ni-Cu-Ni (customizable)

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

Optional Coatings: Gold or silver plating for better conductivity and corrosion resistance

4. Appearance & Dimensional Inspection

The ways of inspecting this premium qualiy heat resistant  high energy density heavy duty rare earth bullet head shaped cone magnet’s apperance are as following:

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

Magnetic Flux Consistency Test: Fluxmeters or Hall-effect testers measure magnetic flux across batches to ensure uniform performance in end-user applications.

5. Reliability Testing

Impact & Vibration Test: Simulates shipping and usage conditions to ensure operational stability.

Constant Temperature & Humidity Test: Performed under 85°C and 85% RH for 96–500 hours. Performance and appearance are compared before and after testing.

6. 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.

We understand logistics is more than just transport — it's about your commitment and customer satisfaction. Our solutions offer:

Global logistics support

End-to-end visual tracking

Multiple layers of transport safety

One-on-one customer service for tailored shipping plans

With our reliable land, sea, and air logistics network, we empower your business to go further and soar higher.

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.

7.  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.

8. 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

Contact Us
Phone/WhatsApp/WeChat: +8614716150318
Email: leo@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China