Industrial Strong Neodymium Round Magnet Magnetic Disc for Electronic/ Speaker/ Headphone

• Customization: Available
• Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Motor Magnet
• Shape: Disc/Round/Coin
• Model NO.: HJ
• Coating: Zinc/Nickel
• Grade: N35-N52, N35m-N50m, N35h-N48h, N33sh-N45sh
• Working Temp: 80~400 Deree
• MOQ: 5PCS
• Tolerance: +/-0.05mm
• Lead Time: 5-7 Days
• Payment Term: T/T, L/C, Paypal, Western Union
• Trade Term: EXW, Fob, F&C, Fcr, CIF, Ect
• Material: Neodymium-Iron-Boron
• Advantage: Eco-Friendly/ Anti-Corrosion / Long Life
• Transport Package: Carton or Wooden Box
• Specification: Customized
• Trademark: HJ
• Origin: Jiangsu, China
• HS Code: 8505119000
• Production Capacity: 5000000/Year
• Package Size: 35.00cm * 26.00cm * 15.00cm
• Package Gross Weight: 20.000kg

Product Description

Industrial Strong Neodymium Round Magnet Magnet Disc for Electronic/
Speaker/Headphone
 

Item	Magnetic Round
Gauss	N35-N52, N35m-N50m, N35h-N48h, N33sh-N45sh
Working Temp	80~200 Degree
Specification	Customized Size
Certification	RoHS Test, ISO9001
Casing	SUS304/316L
Lead Time	5~7 Days
Transport Package	Box or Carton
Payment Term	T/T, L/C, Western Union, Paypal
Express	DHL, FedEx, TNT,UPS ect
Application	Electronic Products, Industrial Magnet, Motor Magnet, Food industry, Ceramic industry ect
Feature	Eco-friendly, Green Product, long life.
Performance	Permanent, Strong, Rust-proof, Anti-corrosion

Disc magnets:
Disc magnets are thin flat circular magnets where the thickness does not exceed the diameter.
They are the most commonly used magnet shape and the most versatile. They are used in
holding applications where a hole is drilled and the magnet is recessed into the hole. They
are commonly used with cup assemblies to increase their holding strength.





MAGNETIC AND PHYSICAL CHARACTERISTICS

Series	Grade	Remanence		Coercive Force		Intrinsic Coercive force		Max. Energy Product		Max. Working Temp.
		Br		Hcb		Hci		(BH) max		L/D=0.7
		T	kGs	KA/m	KOe	KA/m	KOe	KJ/m^3	MGOe	ºC	°F
N	N35	1.17-1.24	11.7-12.4	≥860	≥10.8	≥955	≥12	263-295	33-37	80	176
	N38	1.22-1.30	12.2-13.0	≥860	≥10.8	≥955	≥12	287-318	36-40	80	176
	N40	1.26-1.32	12.6-13.2	≥860	≥10.8	≥955	≥12	302-334	38-42	80	176
	N42	1.29-1.35	12.9-13.5	≥860	≥10.8	≥955	≥12	318-350	40-44	80	176
	N45	1.32-1.38	13.2-13.8	≥860	≥10.8	≥955	≥12	334-366	42-46	80	176
	N48	1.37-1.43	13.7-14.3	≥836	≥10.5	≥876	≥11	358-390	45-49	80	176
	N50	1.40-1.45	14.0-14.5	≥836	≥10.5	≥876	≥11	374-406	47-51	80	176
	N52	1.42-1.48	14.2-14.8	≥836	≥10.5	≥876	≥11	390-422	49-53	80	176
	N54	1.45-1.51	14.5-15.1	≥836	≥10.5	≥876	≥11	398-438	50-55	80	176
M	N35M	1.17-1.24	11.7-12.4	≥860	≥10.8	≥1114	≥14	263-295	33-37	100	212
	N38M	1.22-1.30	12.2-13.0	≥915	≥11.5	≥1114	≥14	287-318	36-40	100	212
	N40M	1.26-1.32	12.6-13.2	≥939	≥11.8	≥1114	≥14	302-334	38-42	100	212
	N42M	1.29-1.35	12.9-13.5	≥955	≥12.0	≥1114	≥14	318-350	40-44	100	212
	N45M	1.32-1.38	13.2-13.8	≥987	≥12.4	≥1114	≥14	334-366	42-46	100	212
	N48M	1.37-1.43	13.7-14.3	≥1019	≥12.8	≥1114	≥14	358-390	45-49	100	212
	N50M	1.40-1.45	14.0-14.5	≥1043	≥13.1	≥1114	≥14	374-406	47-51	100	212
	N52M	1.42-1.48	14.2-14.8	≥1059	≥13.3	≥1114	≥14	390-422	49-53	100	212
H	N35H	1.17-1.24	11.7-12.4	≥876	≥11	≥1350	≥17	263-295	33-37	120	248
	N38H	1.22-1.30	12.2-13.0	≥915	≥11.5	≥1350	≥17	287-318	36-40	120	248
	N40H	1.26-1.32	12.6-13.2	≥939	≥11.8	≥1350	≥17	302-334	38-42	120	248
	N42H	1.29-1.35	12.9-13.5	≥963	≥12.1	≥1350	≥17	318-350	40-44	120	248
	N45H	1.31-1.37	13.1-13.7	≥979	≥12.3	≥1350	≥17	335-366	42-46	120	248
	N48H	1.37-1.43	13.7-14.3	≥1011	≥12.7	≥1274	≥16	358-390	45-49	120	248
	N50H	1.40-1.45	14.0-14.5	≥1027	≥12.9	≥1274	≥16	374-406	47-51	120	248
SH	N33SH	1.14-1.21	11.4-12.1	≥852	≥10.7	≥1592	≥20	247-279	31-35	150	302
	N35SH	1.17-1.24	11.7-12.4	≥876	≥11	≥1592	≥20	263-295	33-37	150	302
	N38SH	1.22-1.29	12.2-12.9	≥915	≥11.5	≥1592	≥20	287-318	36-40	150	302
	N40SH	1.26-1.32	12.6-13.2	≥939	≥11.8	≥1592	≥20	302-334	38-42	150	302
	N42SH	1.29-1.35	12.9-13.5	≥963	≥12.1	≥1592	≥20	318-350	40-44	150	302
	N45SH	1.32-1.38	13.2-13.8	≥994	≥12.5	≥1592	≥20	335-366	42-46	150	302
UH	N30UH	1.08-1.16	10.8-11.6	≥812	≥10.2	≥1990	≥25	223-255	28-32	180	356
	N33UH	1.14-1.21	11.4-12.1	≥852	≥10.7	≥1990	≥25	247-279	31-35	180	356
	N35UH	1.17-1.24	11.7-12.4	≥876	≥11	≥1990	≥25	263-295	33-37	180	356
	N38UH	1.22-1.29	12.2-12.9	≥915	≥11.5	≥1990	≥25	287-318	36-40	180	356
	N40UH	1.26-1.32	12.6-13.2	≥939	≥11.8	≥1990	≥25	302-334	38-42	180	356
	N42UH	1.29-1.35	12.9-13.5	≥963	≥12.1	≥1990	≥25	318-350	40-44	180	356
EH	N30EH	1.08-1.15	10.8-11.5	≥812	≥10.2	≥2388	≥30	223-255	28-32	200	392
	N33EH	1.14-1.21	11.4-12.1	≥851	≥10.7	≥2388	≥30	247-279	31-35	200	392
	N35EH	1.17-1.24	11.7-12.4	≥876	≥11	≥2388	≥30	263-295	33-37	200	392
	N38EH	1.22-1.29	12.2-12.9	≥915	≥11.5	≥2388	≥30	287-318	36-40	200	292
AH	N28AH	1.04-1.12	10.4-11.2	≥772	≥9.70	≥2786	≥35	207-239	26-30	230	446
	N30AH	1.08-1.15	10.8-11.5	≥812	≥10.2	≥2786	≥35	223-255	28-32	230	446
	N33AH	1.14-1.21	11.4-12.1	≥852	≥10.7	≥2786	≥35	247-279	31-35	230	446

Applications of Sintered NdFeB Magnets 

· Automotive Starters	· Microphone Assemblies
· Computer Rigid Disc Drives	· Particle Accelerators
· DC Motors	· Printers
· Headphone	· Relays
· Halbach Arrays	· Servo Motors
· Linear Actuators	· Stepper Motors
· Linear Motors	· Switches
· Loud Speakers	· Undulators
· Magnetic Bearings	· Vacuum Deposition
· Magnetic Couplings	· Voice Coil Motors (VCM)
· Magnetic Separators	· Wind Turbines

The production process:
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
then ground 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.

Advantages of Sintered Magnet
1.The NdFeB magnet has high remanence, high coercive force, high energy product and
high ratio between   performance value and product cost.
2.It can be easily formed into various sizes.Various shapes on offer: block, round, ring, arc-
even highly complex forms. Virtually any shape of neodymium
3.Smaller size and lighter weight in designing devices
4.High energy range from 30MGOe to 53MGOe with wonderful coercive force

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.



Customized Service       
1. Customized Material Neodymium Grade: N35-N52, N35M-N50M, N35H-N48H, N33SH-
N45SH, N30UH-N35UH, N30EH-N35EH;
2. Customized Shaped magnet: Round / block / ring / cylinder / countersunk / arc / segment
other irregular shapes.
3. Custom packaging. Usually we packed the magnet with vacuum polybag. Then packed in
stop magnetic metal box.  We can also make the package as your requirements.        
4. Customized Mark: to distinguish N pole and S pole.       
5. Custom coating. We can coated in Nickel. Zinc, Chromium as your requirements.        
6. Customized Working temperature: <80ºC/ 80ºC-200ºC

Our Advantages        
1. More than 10 years professional Neodymium Magnet Manufacturer        
2. Trade Assurance to Secure your trade safety        
3. High quality Rare earth Materials used.        
4. Fast delivery Time for magnet produce and Magnetic Assemblies.        
5. Free sample available.        
6. Difference Specification Choice    
7.Direct Factory, best competitive price is available.

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, 7-35 days.

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




FAQ:
1. How to get quick 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?
Normally regular Size: ≥1 Piece.

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

Caution:
Neodymium magnets can be dangerous, as they generate extremely strong pull forces,
therefore must be handled with care to avoid personal injury and damage to the magnets.
Fingers and other body parts can get severely pinched between two attracting magnets. 
Neodymium magnets are brittle, and can shatter if allowed to slam together, launching
small pieces at great speeds. Eye protection should be worn when handling there magnets. 

Product Catalogue:

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