Super Strong Neodymium Magnetic Ring Customized Size and Performance Magnetic Holding Relay/Water Meter/Dry Reed Tube/Sensor

• Customization: Available
• Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
• Shape: Ring
• Model NO.: HJ
• Coating: Zinc/Nickel
• Grade: N35-N52, N35m-N50m, N35h-N48h, N33sh-N45sh
• Material: Sintered Neodymium-Iron-Boron
• Tolerance: +/-0.05mm
• Working Temp: 80~200 Degree
• Certification: RoHS, SGS
• Delivery Time: 3-10 Days After Order Confirmation
• Payment Term: T/T, L/C, Paypal, Western Union
• Trade Term: EXW, Fob, F&C, Fcr, CIF, Ect
• Certifications: ISO9001,SGS,RoHS
• Transport Package: Box or Carton
• Specification: Customized size
• Trademark: HJ
• Origin: Nanjing, Jiangsu, China
• HS Code: 8505111000
• Production Capacity: 50000000/Month
• Package Size: 35.00cm * 26.00cm * 15.00cm
• Package Gross Weight: 20.000kg

Product Description

Super Strong Neodymium Magnetic Ring Customized Size And Performance

 

Item	Magnetic Ring
Gauss	N35-N52, N35m-N50m, N35h-N48h, N33sh-N45sh
Working Temp	80~200 Degree
Specification	Carton & Wooden & Pallet & By Customer Requirements
Certification	RoHS Test, ISO9001
Casing	Zinc,  Nickel etc
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

Ring magnets:
Ring magnets are used in a variety of applications, from science experiments to medical
equipment, because of the versatility of their shape and their ability to work with other
components, like rods or tubes. Ring magnets have a unique polarization because the
north and south poles can be segmented in a variety of ways, but always alternate around
the ring.





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.Extreme strong Br Resident induction. 
2.Excellent demagnetization resistance capability. 
3.Good Price relative to its high magnetic properties.

Grades of Neodymium
As a very general rule, the higher the grade (the number following the 'N'), the stronger the
magnet. The highest grade of neodymium magnet currently available is N52. Any letter
following the grade refers to the temperature rating of the magnet. If there are no letters
following the grade, then the magnet is standard temperature neodymium. The temperature
ratings are standard (no designation) - M - H - SH - UH - EH. 

Coatings
Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed
to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to
strengthen the brittle magnet material, it is usually preferable for the magnet to be coated.
There are a variety of options for coatings, but nickel is the most common and usually preferred.
Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. 

Machining
Neodymium material is brittle and prone to chipping and cracking, so it does not machine well
by conventional methods. Machining the magnets will generate heat, which if not carefully
controlled, can demagnetize the magnet or even ignite the material which is toxic when burned.
It is recommended that magnets not be machined.

Strength
If you've never handled neodymium magnets before, you will be amazed at their strength.
Neodymium magnets are over 10x stronger than the strongest ceramic magnets.

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.




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.
8.Flexible payment policy, reliable quality, fast delivery

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

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 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: 7-9 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 samples order.
(3). PayPal- for samples 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. 

Products Catalogue:

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