Product Detail
Basic Info
Model NO.:JIN-25
Application:Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
Shape:Ring
Coating:Nickel
Material:NdFeB
Diameter D:25mm
Total Height H:7 Mm
Borehole D1:5.5 Mm
Countersinking D2:11.7 Mm
Countersinking T:3.1 Mm
Tolerance:+/- 0,05mm
Magnetisation:N38
Strength:Approx. 19 Kg
Weight:20 G
Trademark:Ningbo Jinyu Magnet Co., Ltd
Specification:size can be customed
Origin:Ningbo, China
HS Code:85051110
Product Description
Distinctive feature: These pot magnets can be fastened with a countersunk screw. We also carry pot magnets with cylindrical borehole.
Principle: The strong neodymium magnets are embedded in a steel pot. The steel pot increases the adhesive force of the magnet on direct contact with a thick iron surface. If there is no direct contact with the counterpart, or if the steel plate is thin, painted or rough, you can strain it much less.
Shear force: The indicated adhesive force was measured perpendicular to the surface to which the magnet should stick. It takes a lot less strength to move the magnet sideways. Therefore, you can strain a pot magnet much less if you use it on a wall as opposed to using it on the ceiling.
Rust: These magnets are not rust-proof and therefore intended for dry indoor use.