70(20×10)x40X10mm square magnets with countersunk

70(20×10)x40X10mm square magnets with countersunk

Product Detail

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Description:

Super Neodymium Magnet Made of neodymium, the most powerful magnet material in the world. Super magnets are great for projects that require extreme strength in a small size. Magnets are brittle and can chip if dropped. Warning: Not for children.

Specification:

 China Manufacturer 70(20×10)x40x101mm block magnets with countersunk  Large Super High Grade Rare Earth Permanent Ndfeb Magnet.

JT-039_gaimagnetization side2

 

 

Place of origin China
Item ID S60405N
Material NdFeB
Shape Disc
Length 70mm(20x10mm)    as for your design
width 40mm
Thickness 10mm
Tolerance ±0.03mm for diamater   /thickness, ±0.1mm for width/ length
Direction of magnetisation axial (parallel to height)
Coating Nickel-plated (Ni-Cu-Ni),can be Customised  Gold, Silver, Copper, Epoxy, Chrome, etc)
Grade Customized  N35 N38 N40 N42 N45 N48 N50 N52 ……
Max. Working Temperature Grade Max. Operating Temperatures
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)


Product show:

countersunk

 

ndfeb magnet_end

ndfeb magnet22

Coating for your convenience:

Neodymium magnet are composed mainly of neodymium, iron and boron.if that are not plated, the iron in the material will oxidize very easily, particularly is exposed to moisture. Even normal humidity will rust any iron anywhere over time.

Nickel is the most common choice, as it is durable and cost-effective.Our magnets are costed with a triple plating of nickle-copper-nickle.This created a shiny sliver finish and provides dependable resistance to corrosion in most applications. It is important to remember that no neodymium magnet,even with a plastic or golb coating, is completely waterproof.

 Magnet coating-1

Production Flow :

For the next 25 years Jintong was one of the leading neodymium magnet  manufacturers and shipped an average of 1 to 2 tons of finished neodymium magnetic material per month. We are constantly striving to add complimentary functions in order to consistently deliver value to the market place.

production flow_m

Machining Equipment:

Configure high-end detection equipment The development of proprietary cutting technology, advanced precision machinetight production process control allowed Jintong to remain at the forefront of neodymium magnet manufacturers.

1.Average force meter( Milling particle size inspection)

2.Magnetization characteristic automatic measuring instrument( Issuedemagnetization curve)

3.Magnetic testing equipment for measurements of Field Density and Field Strength

4.Hysteresisgraph for magnetic characteristic measurement ect

machining_m

Certification:

certificates from jintong_m


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