Hot Sale Permanen Strong Rubber Coated Neodymium Magnets

• Application: Speaker Magnet, Industrial Magnet, Motor Magnet
• Shape: Disc
• Coating: Rubber Coated
• Grade: N52
• Size: Customized
• Pull Force: Customized
• Model NO.: SDMN
• Transport Package: Customized
• Specification: Neodymium magnet
• Trademark: SDM
• Origin: China (Mainland)
• HS Code: 8505111000

Product Description

Hot Sale Permanen Strong Rubber Coated Neodymium Magnets

Company Profile

SDM Magnetics Co., Ltd. is a leading Chinese manufacturer of high quality permanent magnet and magnetic assemblies since 2014. SDM serves a variety of markets include automotive, industrial automation, consumer electronics, green energy, household appliances, and aerospace. To meet the more and more demanding markets, SDM has been concentrating on manufacturing technologies for quality stability and cost reduction. With grain boundary diffusion technology, SDM can offer competitive prices for high coercivity Neodymium magnets. SDM 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.

Product Description

Rubber coated magnet, also referenced as rubber covered magnet or weatherproof magnet, is mainly made by sintered Neodymium magnet, stainless steel plate, and durable rubber coating. The protective rubber coating protects fragile magnet from chipping and corrosion. In the meanwhile, rubber coating can serve an excellent slide resistance or shear force by enhancing friction without scratching working face. Therefore, rubber coated magnet is generally regarded as an ideal sustained solution for both indoor and outdoor magnetically holding, mounting, and fixing applications.

Encapsulation Process of Rubber Coated Magnet

Encapsulation process of rubber coated magnet is processed via vulcanization or injection molding technology. Vulcanization and injection molding technology is corresponding to vulcanized silicon rubber and thermo-plastic-rubber material (TPR), respectively. Injection molding technology of rubber coated magnet is belonging to overmolding process which involves 2 separate molds. The first mold produces a rubber part with cavity for the magnetic system. Magnetic system is then placed into the first rubber part. The assembly is subsequently inserted into the second mold where the second half of rubber part in injected, covering the magnetic system and fusing with the first half of the rubber part. For rubber coated magnet, injection molding technology is the more conventional encapsulation process compared with vulcanization technology due to the production efficiency, raw material cost, utilization rate of recycled material, and color flexibility. Even vulcanization technology is generally condemned for relatively higher cost, but vulcanized silicon rubber coating can serve more superior durability and slide resistance to rubber coated magnet.

 

Magnetic Circuit Design in Rubber Coated Magnet

Magnetic system holds its magnetic strength best during most of the magnetic flux is granted the ability to loop through ferromagnetic medium instead of air. Magnetic system in rubber coated magnet will form a magnetic circuit with ferromagnetic load after stuck to each other. Take the pull force of A43 as an example, simulation results of practical and expected arrangement reached 123.0N and 78.7N, respectively. With the same cost, practical arrangement utilizing sintered Neodymium magnets with opposite poles right next to each other exhibit much stronger pull force in comparison with the expected arrangement.

 

Specifications

 

 

 

Our 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 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. Neodymium Rare Earth Magnet for Motors,Generators and Speakers, we are good at it.
 • One stop service from R&D to mass production for all Neodymium Rare Earth Magnet and Neodymium Magnet assemblies. Especailly the High Grade Neodymium Rare Earth magnet and High Hcj Neodymium Rare Earth Magnet.

About Us

 

 

 

 

 

 

 

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 materials in stock to help you to get the samples as soon as we can.

3:How about the quality of the magnets?

We have the certification of ISO,TS and ROSH,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 magnet we can with reasonable price.

5:Could you provide me the shortest lead time?

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