3m Adhesive Disc Magnet Custom NdFeB Magnet with Self Adhesive Back

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Model NO.	KS	Grade	NdFeB
Type	Permanent	Composite	NdFeB Magnet
Delivery Time	8-14 Days	Size	Customized Magnet Size
Product Name	Permanent Strong Neodymium Magnet	Tolerance	+/-0/02---+/-0.05mm
Processing Service	Cutting, Moulding	Density	7.45g/mm3
Transport Package	Demagnetize Packing Box	Trademark	KS
Origin	Shanxi, China	Production Capacity	1500 Ton/Tons Per Year

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10 Years Experience Taiyuan Magnet Manufacturer

10 Years Magnet Custom Super Strong Round Disc Small Automotive Office N52 Permanent Motor Neodymium Magnet For Sale

Free Sample and Trial Order are Most Welcome
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3M Adhesive Disc Magnet Custom NdFeb Magnet With Self Adhesive Back

Description	High Quality Neodymium Magnet for Motor
Material	Neodymium-Iron-Boron
WorkingTemperature	Grade	Max. Operating Temperature
		N35-N52	80°C (176°F)
		33M- 48M	100°C (212°F)
		33H-48H	120°C (248°F)
		30SH-45SH	150°C (302°F)
		30UH-40UH	180°C (356°F)
		28EH-38EH	200°C (392°F)
		28AH-35AH	220°C (428°F)
Magnet Shape	Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized shape are available.
Magnet Coating	Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more.

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.

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 nickel-copperblack 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.