Ring permanent magnets for speaker from China manufacturer

Price:	0.1~100.0 USD
Payment Terms:	T/T,L/C,D/A,D/P,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: UPR-007

Production Capacity: 100,000pcs/month

Delivery Date: 10-30days

Shape: Others

Composite: Rare Earth Magnet

material: Neodymium

Means of Transport: Ocean

Packing: standard sea or air package...

Application: Jewelry Magnet

Type: Permanent

Brand Name: UPMAG

1.N38EH magnets
2.Ring magnets with very thin wall
3.NicuNi coating with 72hours for salt spray test
4.round corners with small tolerance

It is always manufactured via Cutting and grinding ,drilling etc .Ring magnets

have the following important factors such as ,Out diameter.Inner diameter,Thicknes,

etc

Our factory produce and manufacture magnets according to customers design on

shape ,deminsion,grades,coatings etc

To offer you our Block magnets price,please offer the following details :
Magnets grade :from N35 To N52 ,from N Series to UH Series.

Magnets size : Outer Diameter,Inner Diameter,Thickness
Magnetism direction :which direction to oriented The north pole and south pole
Magnets coating :Nickel ,Zn,Black Epoxy,Ag,Au Etc.
Quantities: More mass order quantities. More Lower the prices. Original factory

We designed the ring magnets for some special customers.these magnets have very thin wall and round and shining surface. The salt spray test can reach 72 hours.

Due to the round surface, we need to grind each magnet by hand one by one, so the output is not so many, about 5,000pcs per month.

ring permanent magnets

Available Coating Of Sintered NdFeB Magnets
Surface	Coating	Thickness(Microns)of coating	Color	Resistance	Salt spray Test Standard (hours)	Pressure Coating Test Standard (hours)
Passivation		1--2μm	Silver Grey	Temporary Protection	Not available	Not available
Nickel	Ni+Ni	10--20μm	Bright Silver	Excellent against Humidity	24	24
Nickel	Ni+Cu+Ni	10--20μm	Bright Silver	Excellent against Humidity	24	24
Zinc	ZN	3--8μm	Bright Blue	Good Against Salt Spray	24	Not available
Zinc	C-Zn	3--8μm	shining Color	Excellent Against Salt Spray	48	Not available
CR3+Zinc	ZN	3--8μm	Bright Blue	Good Against Salt Spray	24	Not available
CR3+Zinc	C-Zn	3--8μm	shining Color	Excellent Against Salt Spray	48	Not available
Tin	Ni+Cu+Sn	10--25μm	Silver	Superior Against Humidity	48	Not available
Gold	Ni+Cu+Au	2--10μm	Gold	Superior Against Humidity	Not available	Not available
Ag	Ni+Ag	2--10μm	Silver	Superior Against Humidity	Not available	Not available
Epoxy	Epoxy	10--25μm	Black,Grey	Excellent Against Humidity & Salt Spray	48	Not available
	Ni+Cu+Epoxy					Not available
	Zn+Epoxy					Not available