High Quality Magnetic Disc China Permanent Magnets for Speaker 18 Inch Subwoofer Magnet

• Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
• Shape: Round/Rectangle/Irregular
• Coating: Zinc/Nickel
• Grade: N35-N52; N35m-N50m; N35h-N48h, N35sh-N45sh
• Type: Permanent&Strong
• Composition: NdFeB Magnet
• Model NO.: D15*5mm
• MOQ: 100PCS
• Processing: Sintered
• Tolerance: +/-0.05mm
• Working Temp.: Max 176f/ 176f~392f
• Density: 7.50-7.65g/cm3
• Lead Time: 5-8 Days
• Samples: Available
• Transport Package: Box or Carton
• Specification: Rohs SGS
• Trademark: HJ
• Origin: Nanjing, Jiangsu
• HS Code: 85051110
• Production Capacity: 5000000pieces/Year

Product Description

High Quality Magnetic Disc China Permanent Magnets for Speaker 18 Inch Subwoofer Magnet
 

Item	Disc Magnet/Round Magnet
Grade	N35~N52
Composition	Neodymium Magnet
Application	Voice-coil Motor(VCM), MRI, Generator, Car, Speaker, Computer
Working Temp.	Max 176F/ 176F~392F
Coating	Zinc, Color Zinc, Nickel etc
Grade	N35-N52, 38M-48M, 35H-48H, 33SH-44SH, 30UH-35UH
Dimension	Customized size
Magnet Direction	Through thickness(Axially)+Radially
Type	Strong&Permanent
Performance	Permanent, Strong, Rust-proof, Anti-corrosion
Trade Term	CNF, FOB, CIF, EXW ect.
Payment Term	TT, PayPal, Western Union ect.

Our Company
Nanjing Huajin Magnetic Materials Co., Ltd. Specializing in the production and sale
of magnetic NdFeB, magnetic bar, magnetic products, magnetic frame. Magnets of
various shapes and sizes can be produced according to customer requirements, such
as packaging diskette, the motor magnetic tile, magnetic ring, toy bar magnet, magnetic
ball, with the exception of iron magnetic rods, magnetic hooks, magnetic separator box;
Surface treatment: Gold, silver, plated epoxy, nickel-plated copper-nickel, zinc, chromium,
titanium (blue zinc, black zinc, color zinc), above the surface treatment to meet environmental requirements.

NdFeB Introduction: 
Neodymium magnets are actually composed of neodymium, iron and boron (they
are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed
under great pressure into molds. The material is then sintered (heated under a vacuum),
cooled, and thenground or sliced into the desired shape. Coatings are then applied if
required. Finally, the blank magnets are magnetized by exposing them to a very powerful
magnetic field in excess of 30 KOe.

Grade	Remanence		Coercivity Force		Intrinsic Coercive Force		Max. Energy Product		Working Temp.
	Br		Hcb		Hcj		(BH)max
	mT	kGs	kA/m	kOe	kA/m	kOe	kJ/m3	MGOe
N35	1170-1220	11.7-12.2	≥ 868	≥ 10.9	≥ 955	≥ 12	263-287	33-36	80 ° C
N38	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 955	≥ 12	287-310	36-39	80 ° C
N40	1250-1280	12.5-12.8	≥ 907	≥ 11.4	≥ 955	≥ 12	302-326	38-41	80 ° C
N42	1280-1320	12.8-13.2	≥ 915	≥ 11.5	≥ 955	≥ 12	318-342	40-43	80 ° C
N45	1320-1380	13.2-13.8	≥ 923	≥ 11.6	≥ 955	≥ 12	342-366	43-46	80 ° C
N48	1380-1420	13.8-14.2	≥ 923	≥ 11.6	≥ 876	≥ 12	366-390	46-49	80 ° C
N50	1400-1450	14.0-14.5	≥ 796	≥ 10.0	≥ 876	≥ 11	382-406	48-51	60 ° C
N52	1430-1480	14.3-14.8	≥ 796	≥ 10.0	≥ 876	≥ 11	398-422	50-53	60 ° C
35M	1170-1220	11.7-12.2	≥ 868	≥ 10.9	≥ 1114	≥ 14	263-287	33-36	100 ° C
38M	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 1114	≥ 14	287-310	36-39	100 ° C
40M	1250-1280	12.5-12.8	≥ 923	≥ 11.6	≥ 1114	≥ 14	302-326	38-41	100 ° C
42M	1280-1320	12.8-13.2	≥ 955	≥ 12.0	≥ 1114	≥ 14	318-342	40-43	100 ° C
45M	1320-1380	13.2-13.8	≥ 995	≥ 12.5	≥ 1114	≥ 14	342-366	43-46	100 ° C
48M	1360-1430	13.6-14.3	≥ 1027	≥ 12.9	≥ 1114	≥ 14	366-390	46-49	100 ° C
50M	1400-1450	14.0-14.5	≥ 1033	≥ 13.0	≥ 1114	≥ 14	382-406	48-51	100 ° C
35H	1170-1220	11.7-12.2	≥ 868	≥ 10.9	≥ 1353	≥ 17	263-287	33-36	120 ° C
38H	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 1353	≥ 17	287-310	36-39	120 ° C
40H	1250-1280	12.5-12.8	≥ 923	≥ 11.6	≥ 1353	≥ 17	302-326	38-41	120 ° C
42H	1280-1320	12.8-13.2	≥ 955	≥ 12.0	≥ 1353	≥ 17	318-342	40-43	120 ° C
45H	1300-1360	13-13.6	≥ 963	≥ 12.1	≥ 1353	≥ 17	326-358	43-46	120 ° C
48H	1370-1430	13.7-14.3	≥ 995	≥ 12.5	≥ 1353	≥ 17	366-390	46-49	120 ° C

Magnetism Direction:

Widely Applications of neodymium magnets:
1) Servomotor, step motor, DC motor and linear motor
2) Loudspeaker, headphone, earphone and microphones
3) Medical Industry: Medical equipment, Magnetic therapy products
4) Holding system equipment
5) Automobile industry:
6) Research and development, as well as many other applications
7) Home decoration: Curtain, magnetic sticker
8) Magnetic Separators - Used for recycling, food and liquids QC, waste removal

Purchasing Guides:
To offer you prompt and best prices, pls kindly furnish us the following details:
1) The dimension, coating, grade and magnetism direction(Axial or Radial)
2) Order Quantity( Prices depends on quantities)
3) Application(If you are not sure about the size, pls let us know the usage, then we can
give some professional recommands)
4) Drawings offering if you have.
5) Other customized requirements

Payment Term:
T/T, L/C, Western Union, PayPal.

Package & Shipment:
1. By Express(DHL, FedEx, TNT, UPS ect): Door to door, Short Delivery time, 3-5 days.
2. By Air: Short Delivery Time, 3-7 days.
3. By Sea: Cheap Shipping Cost, 7-30 days.

Package: Magnetic Isolation Package
Carton: 36*27*15CM


FAQ:
1. How to get prompt quotation?
Kindly offer us the specific size, quantity, coating(zinc/nickel), magnetism direction
ect other requiries. Then best price will be offered ASAP. 

2.What about the lead time?
(1) Sample: 5-7 days. 
(2)  Batch quantity: 7-12 days.

3.What's the MOQ?
(1) Spot Stocks: No MOQ;
(2) Regular Size: 500 PCS, 1000 PCS, 2000 PCS, 5000 PCS ect.
(3) Other Size: 2000 PCS, 5000 PCS, 10000 PCS ect.

4. Terms of Paymemt:
(1). T/T in advance(telegraphic transfer-bank order)
(2). Western Union cash - for small order or samples order.
(3). PayPal- for small order, quick receipt

Please feel free to contact me for any questions and requiries.