4x20mm n45 cylinder magnets MOQ5,000pcs

4x20mm n45 cylinder magnets MOQ5,000pcs

Product Detail

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Description

Super Neodymium Magnet Made of neodymium,4x20mm disc shape n45 strong magnet, 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 Disc Shaped Large Super High Grade Rare Earth Permanent Ndfeb Magnet.

Place of origin China
Item ID S0425N
Material NdFeB
Shape Disc
Diameter 4mm
Thickness 25mm
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

rod magnet

rod magnet1 

rod magnet

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 22

Certifications

certifications

More production

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