Permanent SmCo Cylinder Magnets for Sale

• Customization: Available
• Application: Speaker Magnet, Industrial Magnet, Motor Magnet
• Shape: Disc
• Model NO.: SDM
• Coating: Nickel
• Grade: N42
• Certification: ISO9001:2008, ISO/Ts16949:2009 and RoHS
• Type: Permanent SmCo Micro Magnet
• Composite: Rare Earth SmCo Magnet
• Size: Customized SmCo Micro Magnet
• Other Coating: Zn, Cu, Au, Sliver, Epoxy, Ni-Cu-Ni
• Tolerance: +/-0.05
• Delivery Detail: 7 Days After Order Confirmed
• Export Markets: Global
• Transport Package: Sea Pallet / Air Carton / Express Packaging
• Specification: MMPA SmCo Micro Magnet
• Trademark: SDM SmCo Micro Magnet
• Origin: China (Mainland)
• HS Code: 8505111000
• Production Capacity: 10, 000, 000 PCS/Month

Product Description

Permanent SmCo Cylinder Magnets For Sale

The optical isolator is an optical component which allows the transmission of light in only one direction. It can be used to prevent reflected light feedback into the optical device. Optical isolator has been widely used in optical communication and laser field. The optical isolator mainly exploited the Faraday Effect of the magneto-optic crystal, and the Faraday Effect is a kind of magneto-optic effect.

What is magneto-optical effect?
The magneto-optical effect refers to the effect of the strong magnetic field to the interaction between matter and light. The electromagnetic wave will generate several phenomena when propagate through the medium that has been altered by the presence of the quasi static magnetic field. The common magneto-optical effect includes:
• Faraday Effect: can be applied to optical isolator and optical circulator.
• Kerr Effect: can be applied to the camera shutter.
• Zeeman Effect: can be applied to the measurement of specific charge-to-mass ratio and celestial body magnetic field.

What is Faraday Effect?

Faraday Effect refers to the interaction between the optical wave in the medium and magnetic field. The polarization of polarized light will be changed by the action of the magnetic field.

Faraday Effect has been widely used in measuring apparatus, such as optical rotation, amplitude modulation and remote sensing of the magnetic field.

The operating principle of the optical isolator base on the nonreciprocity of Faraday rotation. The main part of the optical isolator is the so-called Faraday rotator. The Faraday rotator consists of Terbium Gallium Garnet (TGG) magneto-optical crystal and high performance permanent magnet.

The magneto-optical crystal needs to apply the suitable magnetic field. The permanent magnet should provide enough magnetic field in the space of magneto-optical crystal, then the cost can be reduced through the decrease of crystal. Both SmCo magnet and NdFeB magnet can be served as the optical isolator magnet.

SDM Advantages
• Strategic cooperation with China's No.1 rare earth miner CHINALCO, which enables us strong and safe backup for rare earth raw materials cost stability, 3 x -3% annual price down guaranteed.
• ISO/TS 16949, VDA 6.3, ISO9001, ISO14001 certified company, RoHS, REACH, SGS, FDA complied product.
• 0 PPM performance for General Motor's OEM since 2010, remarkable customers such as SIEMENS, BMW, REGAL BELOIT, NIDEC, S&T Motiv.
• Over 100 million neodymium magnets delivered to American, European, Asian  and  African countries.
• One stop service from R&D to mass production.



Quality Assurance
 • ISO9001, ISO14001, ISO/TS16949, TUV, SGS, RoHS for Neodymium Micro Magnet.



Customized Neodymium Magnets and Neodymium Magnetic Assemblies with fast delivery time of 7-15 days.



SDM Reliability & Workshop
 • Demagnetization Curves & Outgoing Inspection Report for each shipment.



Standard Packaging
•  Vacuum packaging for all Neodymium magnets and Neodymium magetic assemblies.
• Shielding box and wooden box to protect the Neodymium magnets during shipping.
Shipping Methods 
• Contract price with FedEx, DHL, UPS and TNT to minimum your shipping cost.
• Experienced shipping forwarder for Ocean and Air shipments.



Exhibitions
• CWIEME BERLIN every year, Germany.
• HANNOVER MESSE every year, Germany.
• CWIEME CHICAGO every year, USA.
You are more than welcome to visit us at above exhibitions every year, we look forward to a face to face meeting with you.
 
Flexible Payment
We accept T/T, Paypal, Western Union, ESCROW and L/C.
 
Company Information
SDM Magnetics Co., Ltd. is a leading Chinese manufacturer of high performance permanent magnets and magnetic assemblies with ISO9001:2008, ISO/TS 16949 and ISO14001 certificates. SDM serves a variety of markets from consumer electronics, industrial automation, automotive, green energy, household appliances, medical, aerospace and telecommunications. SDM's magnets are used in motors, speakers, generators, sensors, compressors, MRI, magnetic chucks and separators etc.
To meet the more and more demanding markets, SDM has been concentrating on manufacturing technologies for quality stability and cost reduction. Since 2010 the company has been supplying magnets to General Motors' OEM with 0 PPM. With Dysprosium infiltration technology, we are able to offer competitive prices for high grade Neodymium magnets. The company has also built up a strategic cooperation with China's No.1 rare earth miner CHINALCO, which gives us strong and safe backup for rare earth raw materials.
SDM Magnetics now manufactures a comprehensive range of magnetic products including:
·Neodymium Magnet
·Injection Molding Magnets
·Samarium Cobalt
·AlNiCo (Aluminum Nickel Cobalt)
·Magnetic Assemblies
Over the last ten years SDM export 85% of its products to American, European, Asian and African countries.With such wide range of magnetic material options, our professional technicians are available to help solve your magnetic needs and choose the most cost effective material for you.
 
How to Find us ?
Our manufacturing plants are located in Tonglu, Hangzhou which are only one hour by car from Hangzhou airport or railway station.
We are also only one hour by train from Shanghai or Ningbo, pickup and drop off at Hangzhou Air/Train stations are available if you are traveling to Hangzhou from other cities in China.
 
FAQ
1: How fast can I get a reply?
You will receive our reply within 15 minutes during our work time 08:00 - 18:00(UTC-8).
2: Can I get free samples?
Free samples are available at SDM warehouse. However it may take minimum 7 days for production if your size is not on our stock list.
3: Are you able to offer best prices?
Magnets are functional products, the costs depend on how strong the materials you need. We believe the most suitable is the best, therefore SDM is keen to offer best prices to meet your target.
4: Are you able to provide best quality?
At SDM you receive products under guarantee of ISO9001, ISO/TS16949 systems.
5: What are your best lead-times?
Immediately shipments are available for stock magnets. For fresh materials, we need 7-15 days for production.
6: How can you make sure that my money is safe with you?
As an Alibaba Trade Assurance member, your funds are under protection of Alibaba group. Payment will not be released to vendor until buyer confirms receipt and good material of delivery.
 

Sintered NdFeB Magnet
Grade	Residual Induction  (Br)		Coercive Force (Hcb)		Intrinsic Coercive Force (Hcj)		Max Energy Product (BH)max		Max Working Temp.
	T	kGs	kA/m	kOe	kA/m	kOe	Kj/m³	MGOe	(°C)
N35	1.17-1.22	11.7-12.2	≥868	≥10.9	≥955	≥12	263-287	33-36	80
N38	1.22-1.25	12.2-12.5	≥899	≥11.3	≥955	≥12	287-310	36-39	80
N40	1.25-1.28	12.5-12.8	≥907	≥11.4	≥955	≥12	302-326	38-41	80
N42	1.28-1.32	12.8-13.2	≥915	≥11.5	≥955	≥12	318-342	40-43	80
N45	1.32-1.38	13.2-13.8	≥923	≥11.6	≥955	≥12	342-366	43-46	80
N48	1.38-1.42	13.8-14.2	≥923	≥11.6	≥955	≥12	366-390	46-49	80
N50	1.40-1.45	14.0-14.5	≥796	≥10	≥876	≥11	374-406	47-51	60
N52	1.43-1.48	14.3-14.8	≥796	≥10	≥876	≥11	390-422	49-53	60
N35M	1.17-1.22	11.7-12.2	≥868	≥10.9	≥1114	≥14	263-287	33-36	100
N38M	1.22-1.25	12.2-12.5	≥899	≥11.3	≥1114	≥14	287-310	36-39	100
N40M	1.25-1.28	12.5-12.8	≥923	≥11.6	≥1114	≥14	302-326	38-41	100
N42M	1.28-1.32	12.8-13.2	≥955	≥12	≥1114	≥14	318-342	40-43	100
N45M	1.32-1.38	13.2-13.8	≥955	≥12.5	≥1114	≥14	342-366	43-46	100
N48M	1.37-1.43	13.7-14.3	≥1027	≥12.9	≥1114	≥14	366-390	46-49	100
N50M	1.40-1.45	14.0-14.5	≥1033	≥13	≥1114	≥14	382-406	48-51	100
N35H	1.17-1.22	11.7-12.2	≥868	≥10.9	≥1353	≥17	263-287	33-36	120
N38H	1.22-1.25	12.2-12.5	≥899	≥11.3	≥1353	≥ 17	287-310	36-39	120
N40H	1.25-1.28	12.5-12.8	≥923	≥11.6	≥1353	≥17	302-326	38-41	120
N42H	1.28-1.32	12.8-13.2	≥955	≥12	≥1353	≥17	318-342	40-43	120
N45H	1.32-1.36	13.2-13.6	≥963	≥12.1	≥1353	≥ 17	326-358	43-46	120
N48H	1.37-1.43	13.7-14.3	≥995	≥12.5	≥1353	≥17	366-390	46-49	120
N35SH	1.17-1.22	11.7-12.2	≥876	≥11	≥1592	≥20	263-287	33-36	150
N38SH	1.22-1.25	12.2-12.5	≥907	≥11.4	≥1592	≥20	287-310	36-39	150
N40SH	1.25-1.28	12.5-12.8	≥939	≥11.8	≥1592	≥20	302-326	38-41	150
N42SH	1.28-1.32	12.8-13.2	≥987	≥12.4	≥1592	≥20	318-342	40-43	150
N45SH	1.32-1.38	13.2-13.8	≥1003	≥12.6	≥1592	≥20	342-366	43-46	150
N28UH	1.04-108	10.4-10.8	≥764	≥9.6	≥1990	≥25	207-231	26-29	180
N30UH	1.08-1.13	10.8-11.3	≥812	≥10.2	≥1990	≥25	223-247	28-31	180
N33UH	1.13-1.17	11.3-11.7	≥852	≥10.7	≥1990	≥25	247-271	31-34	180
N35UH	1.17-1.22	11.7-12.2	≥860	≥10.8	≥1990	≥25	263-287	33-36	180
N38UH	1.22-1.25	12.2-12.5	≥876	≥11	≥1990	≥25	287-310	36-39	180
N40UH	1.25-1.28	12.5-12.8	≥899	≥11.3	≥1990	≥25	302-326	38-41	180
N42UH	1.28-1.32	12.8-13.2	≥899	≥11.3	≥1990	≥25	318-342	40-43	180
N28EH	1.04-1.08	10.4-10.8	≥780	≥9.8	≥2388	≥30	207-231	26-29	200
N30EH	1.08-1.13	10.8-11.3	≥812	≥10.2	≥2388	≥30	223-247	28-31	200
N33EH	1.13-1.17	11.3-11.7	≥836	≥10.5	≥2388	≥30	247-271	31-34	200
N35EH	1.17-1.22	11.7-12.2	≥876	≥11	≥2388	≥30	263-287	33-36	200
N38EH	1.22-1.25	12.2-12.5	≥899	≥11.3	≥2388	≥30	287-310	36-39	200
N40EH	1.25-1.28	12.5-12.8	≥899	≥11.3	≥2388	≥30	302-326	38-41	200
N28AH	1.04-1.08	10.4-10.8	≥787	≥9.9	≥2624	≥33	207-231	26-29	230
N30AH	1.08-1.13	10.8-11.3	≥819	≥10.3	≥2624	≥33	223-247	28-31	230
N33AH	1.13-1.17	11.3-11.7	≥843	≥10.6	≥2624	≥33	247-271	31-34	230
N35AH	1.17-1.22	11.7-12.2	≥876	≥11	≥2624	≥33	263-287	33-36	230
N38AH	1.22-1.25	12.2-12.5	≥899	≥11.3	≥2624	≥33	287-310	36-39	230