Disc magnets are coated with NICUNI coating, then covered with PP-plastic. Red pole is N, and black pole is S, it is very easy to indentify N or S.
we used two tools to make both colors, not only red or black, other colors can available.
The thickness of plastic is 0.5-0.8mm, can protect magnets from damage and corroding effectively, we designed the corners to round which will not cause any hurt!
Because the thickness of plastic is small, magnetic field has not been influenced !
We have being sold 100,000pcs per month to Europe.
Different grade and different colors, or different shapes are available!
Manufacturing process:
Various kinds of shapes for choice:
