Corrosion Resistant Disc Magnets

Corrosion Resistant Disc Magnets
Details:
Our corrosion-resistant disc magnets feature strong magnetic force, excellent heat tolerance, and high-precision dimensions, delivering stable and long-lasting performance for motors, electronics, energy systems, and a wide range of high-efficiency industrial applications.
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Description
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Product Overview

These strong magnetic force corrosion resistant disc magnets deliver strong and stable magnetic capabilities in a compact form. They are ideal for a variety of household uses, such as building magnetic mounts, organizing metal tools, or holding small lightweight items in place. In industrial and technical environments, customized neodymium disc magnets with high magnetic pull are indispensable in manufacturing, engineering, and product design, where their strength and accuracy support the secure positioning of delicate components. They also serve important functions in the energy industry, especially in renewable energy equipment, where their magnetic efficiency enhances overall system performance. Owing to their broad utility, these industrial use compact corrosion resistant disc magnets are a trusted option across numerous fields for both personal and commercial applications.

product-1200-608

 

Technical Parameters

 

  • Product Name:corrosion resistant disc magnets
  • Magnetic Grade: N42 (Br ≥ 13.5 kGs, Hcj ≥ 12 kOe)
  • Dimensions: D - 8mm x 5mm (customizable)
  • Dimensional Tolerance: Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm
  • Operating Temperature: ≤80°C (high-temp version available)
  • Density: ≥7.5 g/cm³
  • Surface Magnetic Field: 2450 ±200 Gauss (measured with TM-801 Gauss meter)
  • Magnetic Flux: 2.3 mWb (measured with fluxmeter)
product-797-528

 

Manufacturing Process

 

These high torque output corrosion resistant disc magnet is produced through a series of precise manufacturing steps:

♦ During the precision finishing stage of NdFeB rare earth magnet manufacturing, a high-speed grinding process is employed to accurately shape the magnet. Using high-precision abrasive wheels-typically diamond or resin-bonded-the magnet is machined under controlled conditions to achieve tight dimensional tolerances in length, width, thickness, and flatness.

♦ Throughout the grinding operation, a specialized coolant is continuously applied to the processing area. This coolant effectively dissipates heat generated during high-speed machining, preventing thermal damage, micro-cracking, or the buildup of internal stress within the magnet. At the same time, it reduces friction and material chipping, ensuring a smooth surface finish and stable processing performance.

♦ As a result of this precision grinding process, the finished magnet exhibits excellent dimensional consistency, clean and sharp edges, and a refined surface quality. These characteristics make the magnet highly suitable for high-performance motors, automation systems, precision sensors, and other demanding applications where tight tolerances and reliable magnetic performance are essential.

product-1200-800

 

Reliability Testing

 

These professional grade corrosion resistant disc magnets' reliability can be tested through the following ways:

▼ 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.

▼ Damp Heat Test: Evaluates resistance to high humidity and corrosion.

product-1200-800

 

Appearance & Dimensional Inspection

 

 
 

Visual Inspection:

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

 
 
 

Automated Intelligent Inspection:

High-speed cameras with AI algorithms detect and reject defects (e.g., cracks, scratches, discoloration) and dimensional anomalies, improving yield and reducing human error.

 
 
 

Magnetic Flux Consistency Test:

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

 

 

Applications Fileds

 

Industrial Automation & Robotics

High-performance neodymium magnets are widely used in robotic drive systems, magnetic gripping solutions, and precision linear motion components, enabling faster response, higher accuracy, and reliable operation in automated equipment.

Renewable Energy Systems

In wind power applications, high-grade neodymium magnets are key elements in permanent magnet generators, improving energy conversion efficiency while supporting more compact and lightweight generator designs.

Automotive & E-Mobility

Neodymium magnets are extensively applied in electric vehicle motors, safety and control sensors, and advanced driver-assistance systems, contributing to higher power density, precise control, and enhanced system reliability.

product-857-857

 

Packaging & Transportation

 

Defect Screening:

Every magnet undergoes complete quality inspection-using calipers, optical projectors, visual examination, and automated detection systems-to eliminate units with cracks, chips, oxidation marks, or coating imperfections.

Consistent Magnetization & Organized Layout:

Each magnet is magnetized to a uniform level and arranged systematically according to customer specifications, ensuring stable performance and supporting smooth integration into automated production lines.

Vacuum-Protected Packaging:

A multi-layer vacuum sealing process, combined with moisture-blocking materials, desiccants, or nitrogen filling, safeguards the magnets from corrosion and minimizes magnetic interference throughout storage and transport.

 

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

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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