Product Overview
Powerful 15mm x 1.4mm Neodymium disc Magnet N33
These 15mm x 1.4mm neodymium small disc magnets offer powerful magnetic strength in an ultra-thin profile, making them perfect for fabric-based applications. Each magnet is sealed in a soft, flexible PVC patch, allowing for easy stitching into or onto garments and textiles without damaging the fabric..
Application Areas & Advantages of Small Disc Magnets
Used in electronics, sensors, medical devices, automation systems, and precision instruments
Compact size allows integration into space-limited designs
High magnetic strength relative to size ensures reliable performance
Stable magnetization supports consistent and repeatable operation
Easy to assemble, bond, or embed into different structures
Material Neodymium (NdFeB)
|
Product Name |
small disc magnets |
|
Shape |
Channel, Mounting, Block, |
|
Magnetic Grade |
N33 (Br ≥ 12.5 kGs, Hcj ≥ 12 kOe) |
|
Dimensions |
D15mm x 1.4mm |
|
Hole |
Two (3.3mm c/s holes) |
|
Dimensional Tolerance |
Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
|
Operating Temperature |
≤80°C (high-temp version available) |
|
Density |
≥7.5 g/cm³ |
|
Max Gauss |
1850 |
|
Pull (KG) |
17.04 |
|
Surface Magnetic Field |
3800 ±200 Gauss (measured with TM-801 Gauss meter) |
|
Magnetic Flux |
2.3 mWb (measured with fluxmeter) |
Surface Protection Technologies for small disc Magnets
Controlled multi-layer plating processes for consistent quality
Strict monitoring of coating thickness and adhesion strength
Corrosion resistance verified by salt spray testing
Coatings compliant with RoHS and REACH requirements
Suitable for industrial, automotive, and electronic applications
Quality Inspection
NdFeB magnet quality inspection consists of material verification, process control, and final performance validation.
Inspection items include chemical composition analysis, density and microstructure control, dimensional measurement, magnetic property testing, and coating evaluation. Environmental tests are applied as required to assess thermal stability, humidity resistance, and corrosion behavior.
This systematic inspection process ensures magnets meet specified mechanical, magnetic, and environmental performance criteria.
FAQ
Q1. Why are multi-pole magnetization tolerances harder to control?
Answer:Multi-pole magnetization requires precise fixture alignment and extremely strong, uniform magnetic fields. Small positional errors during magnetization can cause pole shift, affecting motor smoothness and efficiency.
Q2. How does residual stress from grinding affect long-term reliability?
Answer:Residual stress can create microcracks that propagate under thermal or mechanical cycling. While invisible initially, these defects may lead to delayed fracture or coating failure in service.
Q3. Why is statistical flux distribution more important than single-point measurements?
Answer:System performance depends on consistency across all magnets, not peak values. A narrow flux distribution ensures stable assembly performance and reduces tuning or compensation requirements downstream.
▲ 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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