Ningbo Beilun Meank Magnetics Co.,Ltd. Is known as magnets supplier, which began to machine and sell neodymium-iron-boron magnets 12 years ago. After years of accumulation of industry knowledge and exploration of experience, In 2013, the company introduced the production equipment of metal parts(turning machine and punching machine which for steel cups/iron shells), and started the processing and assembling of magnetic parts and magnetic devices. (Magnetic devices also known as magnet/magnetic assemblies, which are magnetic system with the application of magnetic circuit principle.)

 

The square shape strong neodymium (NdFeB) magnets are given the name of rare earth neodymium(NdFeB) block magnets or rectangular magnets,one strong NdFeB block(rectangular) magnet is expressed by length(L) x width(W) x thickness(T) / height(H).The strongest rare earth magnet blocks are made of neodymium. We provide NdFeB block magnets, neodymium magnet blocks, block neodymium magnets, square shaped magnet, neodymium block, square rare earth magnets, square magnets for sale  and other products for customers.

 

Surface Treatment of Rare Earth Ndfeb Magnet Blocks

 

The square shape strong neodymium (NdFeB) magnets are give the name of rare earth neodymium(NdFeB) block magnets or rectangular magnets,one strong NdFeB block(rectangular) magnet is expressed by length(L) x width(W) x thickness(T) / height(H).The strongest rare earth magnet blocks are made of neodymium.

 

Surface	Coating	Thickness (Microns)	Color	Resistance
Passivation		1	Silver Grey	Temporary Protection
Nickel	Ni+Ni	10-20	Bright Silver	Excellent Against Humidity
	Ni+Cu+Ni			Good Against Salt Spray
Zinc	Zn	8-20	Bright Blue	Excellent Against Salt Spray
	C-Zn		Shinny Color	Superior Against Humidity
Tin	Ni+Cu+Sn	15-20	Silver	Superior Against Humidity
Silver	Ni+Cu+Ag	10-20	Silver	Superior Against Humidity
Gold	Ni+Cu+Au	10-20	Gold	Temporary Protection
Copper	Ni+Cu	10-20	Gold	Excellent Against Humidity&Salt Spray
Epoxy	Epoxy	15-25	Black, Red, Grey	Excellent Against Humidity, Salt Spray, Superior Against Solvents, Gases, Fungi and Bacteria, FDA Approved
	Ni+Cu+Epoxy			Excellent Against Humidity
	Zn+Epoxy
Parylene	Parylene	5-20	Grey	Excellent Against Humidity
Chemical	Ni	10-20	Silver Grey	Excellent Against Humidity

 

Custom Rare Earth Neodymium Block Magnets

 

NdFeB block magnets are non-standard products, sintered NdFeB material has good machinability and can be customized into different sizes of neodymium(NdFeB) block magnets, mold is not needed for customizing strong neodymium rectangular magnets. We can make tiny and large neodymium block magnets for any quantity.

 

 

How to Order Square Shaped Rare Earth Neodymium Magnet?

 

1, Choose the correct neodymium magnet grade for the block magnets according to working temperature and the needed magnetic performance.

 

2, Choose the correct surface treatment according to the application conditions.

 

3, Clear for the magnetization directions for the block neodymium magnets.

 

The Maximum Working Temperature  for Different Grade of Large/tiny Neodymium Block Magnets

 

Neodymium Material Grade	Maximum-Working Temp.	Curie Temp.
N（N35,N38,N40,N42,N45,N48,N50,N52）	176°F (80°C)	590°F (310°C)
N-M（N35M,N38M,N40M,N42M,N45M,N48M,N50M,N52M）	212°F (100°C)	644°F (340°C)
N-H（N35H,N38H,N40H,N42H,N45H,N48H,N50H）	248°F (120°C)	644°F (340°C)
N-SH（N35SH,N38SH,N40H,N42SH,N45SH,N48SH）	302°F (150°C)	644°F (340°C)
N-UH（N28UH,N30UH,N33UH,N35UH,N38UH,N40UH,N42UH）	356°F (180°C)	662°F (350°C)
N-EH（N28EH,N30EH,N33EH,N35EH,N38EH,N40EH）	392°F (200°C)	662°F (350°C)
N-AH（N28AH,N33AH,N35AH,N38AH）	428°F (230°C)	662°F (350°C)