Disc Shape Neodymium Magnet sewing magnet

$0.60 - $1.80
Min. Order
1000 Pieces
Quick Quotation
Company Information

Shanxi Kingsun International Trading Co., Ltd.

CN Trading Company
Response Time
<24h
Response Rate:
75.9%
Transactions
US$ 50,000+
5 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
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Quick Details

Port: Main Port of China
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 1500 Ton/Tons per Year
Place of Origin: Shaanxi China
Brand Name: TW
Model Number: TW
Type: Permanent
Composite: Neodymium Magnet
Shape: Round, Block, Arc, Ring,Cylinder,Customed
Application: Industrial Magnet
Certification: ISO90001, ROHS, CE
Delivery Time: 3-10 Days Faster Then Industry Average
MOQ: 1PC
Grade: N35-N52(M, H, SH, UH, EH, AH)
Tolerance: +/-0/02---+/-0.05mm
Application: Motor, Industrial, Medical, Electronics, Toys...
Material: Sintered Neodymium-Iron-Boron
Coating: Zn/NicuNi/Silvery/Gold/Black Epoxy
Magnetism Direction: Axial/Radial
Size: 0.5mm-200mm
Packaging Detail: demagnetize packing box(for Air and Express) and normal packing box for sea. G.W.: 20kg(44.09171lbs) N.W.: 16.5kg(36.375661lbs) -- 18.3kg(40.343915lbs) Packing size: 350mm*270mm*140mm

Disc Shape Neodymium Magnet sewing magnet

Disc Shape Neodymium Magnet sewing magnet

Product Display

Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed under great pressure into molds. The material is then sintered (heated under a vacuum), cooled, and thenground or sliced into the desired shape. Coatings are then applied if required. Finally, the blank magnets are magnetized by exposing them to a very powerful magnetic field in excess of 30 KOe.

Disc Shape Neodymium Magnet sewing magnet

Application

Disc Shape Neodymium Magnet sewing magnet

Disc Shape Neodymium Magnet sewing magnet

Production Process

 Disc Shape Neodymium Magnet sewing magnet

Company Information

Disc Shape Neodymium Magnet sewing magnet

Disc Shape Neodymium Magnet sewing magnet

Frequently Asked Questions

 

Q: What are neodymium magnets? Are they the same as "rare earth"?

A: Neodymium magnets are a member of the rare earth magnet family. They are called "rare earth" because neodymium is a member of the "rare earth" elements on the periodic table. Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.

 

Q: What does the "N rating", or grade, of the neodymium magnets mean?

A: The grade, or "N rating" of the magnet refers to the Maximum Energy Product of the material that the magnet is made from. It refers to the maximum strength that the material can be magnetized to. The grade of neodymium magnets is generally measured in units millions of Gauss Oersted (MGOe). A magnet of grade N42 has a Maximum Energy Product of 42 MGOe. Generally speaking, the higher the grade, the stronger the magnet.  

 

Q: What is the difference between the different platings and coatings?

A: Choosing different coatings does not affect the magnetic strength or performance of the magnet, except for our Plastic and Rubber Coated Magnets. The preferred coating is dictated by preference or intended application. More detailed specifications can be found on our Specs page.

 

♦ Nickel is the most common choice for plating neodymium magnets. It is actually a triple plating of nickel-coppernickel. It has a shiny silver finish and has good resistance to corrosion in many applications. It is not waterproof.

 

♦ Black nickel has a shiny appearance in a charcoal or gunmetal color. A black dye is added to the final nickel plating process of the triple plating of nickelcopperblack nickel. NOTE: It does not appear completely black like epoxy coatings. It is also still shiny, much like plain nickel plated magnets.

 

♦ Zinc has a dull gray/bluish finish, that is more susceptible to corrosion than nickel. Zinc can leave a black residue on hands and other items.

 

♦ Epoxy is basically a plastic coating that is more corrosion resistant as long as the coating is intact. It is easily scratched. From our experience, it is the least durable of the available coatings.

 

♦ Gold plating is applied over the top of standard nickel plating. Gold plated magnets have the same characteristics as nickel plated ones, but with a gold finish