• Place of Origin:CN;ZHE
• Type:Permanent
• Composite:Rare Earth Magnet
• Shape:Block
• Application:Industrial Magnet
• Brand Name:SDM
• Model Number:SDM-SmCo

16 Years' Professional Permanent Magnet Manufacturer

US$ 161,000 Trade Assurance to Secure Your Transaction

Top 2 Alibaba Neodymium Magnet Supplier

16 Years Experience Free Samples 5G SmCo Circulator Magnets 

 1:) Some Introduction of 5G Circulator Magnets

5G has attracted much attention due to its application prospect in vehicle networking and industrial IOT, while trade war between China and the United States also promotes the temperature. In fact, 5G has also caused an uproar owing to the mass production of 5G circulator magnets.

As an important component of radio-frequency subsystem, circulators have been widely used in wave filter, duplexer and reflection amplifier of 2G ~ 4G wireless base station. 5G has much higher network capacity requirement compared with 4G, and Massive MIMO Technology is one of the critical technology to enhance network capacity. In order to support Massive MIMO Technology, antenna channel of 5G significantly increase to 64-channel from 4-channel and 8-channel in 4G. The consumption of radio-frequency devices has been increased by several times with the increasing channels. Besides, more base station density than 4G due to improvement of working band. Hence, consumption of circulator and relevant 5G circulator will increase sharply.

2:) What is Circulator?

Circulator is a radio-frequency passive device in the mobile communication field that allows microwave or radio-frequency signal transmits inunidirectional ring. The one-way transmission characteristics are based on the gyromagnetic property of gyromagnetic ferrite. Gyromagnetic ferrite is a kind of ferrite material which polarization plane constantly rotates around transmission direction when the plane polarizedelectromagnetic wave travel through the ferrite in one particular direction under high frequency magnetic field. The one-way transmission characteristics are mainly served for mutual isolation between level and level or between level and system of radio-frequency equipment to ensure working independently, therefore, protect signal source and reduce frequency pulling, interference or unnecessary radiation which will efficiently improve circuit quality.

Isolator is another device that helps electromagnetic wave to achieve one-way transmission. The power is completely transferred to load when electromagnetic wave transfers alongthe forward direction, then reflected wave from the load generated relatively high attenuation. Such one-way transmission characteristics can be applied to isolate the power reflection from the load, and thus protect the signal source. In reality, the circulator can become isolator as long as one of the port connects to termination resistor.

3:) About 5G Circulator Magnets

Permanent magnets are a key component thatapplies the constant direct-current magnetic field to gyromagnetic ferrite, and directly affect working band, temperature stability and other parameters of circulator. Both ferrite and Samarium Cobalt magnets can serve as circulator magnets. Ferrite magnets may off-center and the performance of circulator become unstable, in the meanwhile, ferrite also cannot satisfy the miniaturization demand of 5G circulator. In this case, Sm₂Co₁₇ magnets are chosen as 5G circulator magnets even do not have the cost advantage. With the increasing construction of 5G base station, the demand for Sm₂Co₁₇ 5G circulator magnets is experiencing explosive growth.

4:) SDM Magnetics Advantages

 5. SDM Magnetic Reliability

   • Demagnetization Curves & Outgoing Inspection Report for each Neodymium Magnet and Neodymium Magnetic assembly.

6.  Standard Packaging and Shippment

   •  Vacuum packaging for all Neodymium magnets and Neodymium magetic assemblies.

    • Shielding box and wooden box to protect the Neodymium magnets during shipping.

• Contract price with FedEx, DHL, UPS and TNT over 7 years to minimum your shipping cost.

• Experienced shipping forwarder for Ocean and Air shipments.

7. 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 about the Neodymium Magnets and Neodymium Magnetic assemblies

8. Flexible Payment

     We accept T/T, Paypal, Western Union, ESCROW and L/C.

9. 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.

10. Our Workshops

11. Company Information

SDM Magnetics Co., Ltd. is a leading Chinese manufacturer of high performance neodymium magnets and neodymium 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)

·Neodymium and Neodymium 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 neodymium and permanent magnetic material options, our professional technicians are available to help solve your magnetic needs and choose the most cost effective material for you. 

12. FAQ

1:How long will you give me the reply?

we will contact you in 12 hours as soon as we can.

2:Could I get samples?

Yes,we have magnetic materials in stock to help you to get the samples as soon as we can.

3:How about the quality of the neodymium magnets?

We have the certification of ISO/TS and RoHS,we could send the certification test of our company to you.

4:How is the price?

As we believe the quality is the most important,we will provide the best quality neodymium magnets we can with reasonable price.

5:Could you provide me the shortest lead time?

We have neodymium magnetic materials in our stock,if you really need,you can tell us and we will try our best to satisfy with you.

6:Could I visit your factory?

Of course,if you need we will help you to visit our factory.

7:If I have paid,when will you help me to produce?

When we have received the money in our account,we will give you the receipt and arrange to produce immediately.