R25X15X10MM strong and permenent ring Neodymium Ring Magnets in silver color CJ167 manufacturer from China Shanghai CJ Magnet Industry Co., Ltd.

Place of Origin:

Zhejiang, China (Mainland)

Product Detail

Model No.: CJ167

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R25X15X10MM strong and permenent ring Neodymium Ring Magnets in silver color

1 quick detail

Product Name:	NDFEB Rare Earth N35 Disc Magnets, Size251510mm, Thickness Magnetized	Raw Material:	Neodymium
Size:	25*15810mm	Type:	Permanent
Standard:	ISO9001/ROHS/SGS	Coating:	Ni
Grade:	N35	Shape:	Ring
Magnetic Properties:	Sintered Neodymium Magnets	Magnetism:	Strong

2 grade

Range: N35-N52; N35M-N50M;
N35H-N48H, N35SH-N45SH;
N30UH-N40UH, N30EH-N38EH.

Grade:	N35-N52 Max. Working Temperature 80 °C
	33M-48M Max. Working Temperature 100 °C
	33H-48H Max. Working Temperature 120 °C
	30SH-45SH Max. Working Temperature 150 °C
	30UH-40UH Max. Working Temperature 180 °C
	28EH-38EH Max. Working Temperature 200 °C

3 manufacture process

Main steps:

1 raw material ready

2 strip casting

3 hydrogen broken

4 jet milling

5 magnetic pressing

6 sintering

7 magnetic property test

8 machining

9 electroplating

10 inspection

magnetized

4 coating

Others available: Nickel, Zinc, Gold, Silver, Epoxy, Parylene, etc.

Coating and Corrosive Resistance of Sintered NdFeB
Surface	Coating	colour	Thickness (um)	Resistance can be		Corrosive Resistance
Surface	Coating	colour	Thickness (um)	PCT Test	Salt Spray Test	Corrosive Resistance
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