special shape neodymium magnet Material: Neodymium –Iron-Boron (NdFeB) Shape: Irregular Tolerance: +/-0.1mm Standard Coating: Ni-Cu-Ni Application: Industrial magnet Certification: ISO9001 & TS16949   1. Grades   

Grades	N35-N52	N35M-N50M	N35H-N48H	N35SH-N45SH	N30UH-N40UH	N30EH-N38EH
W T	80°C/60°C	100°C	120°C	150°C	180°C	200°C

        - The grades like N48-N52 could meet your requirement on strong power       - Standard one like N35 or N38 is okay for your normal applications       - If you have requirement on the working temperature, please note it.   2.Shapes and Sizes             

Block / Bar	Length x Width x Thickness
Disc / Cylinder	Diamter x Thickness
Ring	External Diamter x Internal Diameter x Thickness
Irregular	According to customer's size or drawing request.

   3. Coatings / Platings                             Others Choices:  Zinc, gold, silver, epoxy, parylene, etc.

Coating and Corrosive Resistance of Sintered NdFeB
Surface	Coating	colour	Thickness(um)	Resistance can be		Corrosive Resistance
				PCT Test	Salt Spray Test
Nickel	Ni/NiCuNi	Silver	10-20	48h/72h	72h	excellent
Zinc	blue zinc/colour zinc	brightblue/shinyblue	8-20	24	24	good
epoxy	epoxy/NiCu+Epoxy	black/grey	15-25	48	96	excellent
Tin	NiCuSn	silver	15-20	72	72	superior
Parylene	Parylene	grey	15-25	96	200	superior
Teflon	Teflon	grey	10-20	12	24	superior
Phosphorization	-	grey	1-2	-	-	temporary protection
Passivation	-	grey	1-2	-	-	temporary protection