SDM Magnetics Co., Ltd.
311200 Zhejiang
China
Web address: www.magnet-sdm.com
Stand: 5.2 / A17
Company Profile
SDM Magnetics Co., Ltd. is a leading Chinese manufacturer of high performance permanent magnets and magnetic assemblies. 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. 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 Iron Boron
Bonded Magnet
Samarium Cobalt
AlNiCo (Aluminum Nickel Cobalt)
Magnetic Assemblies
Over the last 16 years SDM export 75% 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.
To meet the more and more demanding markets, SDM has been concentrating on manufacturing technologies for quality stability and cost reduction. 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 Iron Boron
Bonded Magnet
Samarium Cobalt
AlNiCo (Aluminum Nickel Cobalt)
Magnetic Assemblies
Over the last 16 years SDM export 75% 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.
Products
Neodymium Iron Boron Magnet
Sintered Neodymium Iron Boron (NdFeB), or “neo” magnets, is the third generation of permanent magnet developed in the 1980s. It offers the strongest magnetic power today.Plastic Bonded Magnet
Bonded magnet of ours can be divided into Compression Molding NdFeB, Injection Molding NdFeB and Injection Molding Ferrite according to the processing methods and materials.Samarium Cobalt (SmCo) Magnet
As the first commercially viable rare earth permanent magnet material, Samarium Cobalt (SmCo) is considered to still be the premium material for many high performance applications.AlNiCo Magnet
AlNiCo magnet material is made by alloying aluminum, nickel and cobalt with iron. Some grades also contain copper and/or titanium. The alloying process is casting or sintering.Magnetic Assemblies
SDM Magnetics manufacturers high quality magnetic assemblies including magnetic coupling, magnetic lifter, magnet rotors, Halbach magnets, shuttering magnets etc.Product index
Electronic and Electrical Components
Magnets and Magnetic Materials
Aluminum Nickel Cobalt Magnets
Magnet Systems
Neodymium Iron Boron Magnets
Plastic Bonded Magnets
Samarium Cobalt Magnets
Keyword
Magnet
News
SDM Magnetics Starts to Use Water-based Cutting Fluid
The cutting fluid is an essential accessory material to the cutting process. For NdFeB magnet, the grinding heat at grinding area will reach 1000 to 1500 deg C during the slicing and grinding processes, the NdFeB magnet is likely to appear spot annealing, surface burning, oxidation, crack and deformation in this situation.The functions of cutting fluid
Cooling: The cutting fluid with suitable pressure and flow can take the cutting heat away; it can also enhance the durability of tools and machining accuracy.
Anti-corrosion: Due to the existence of rare earth element, the cutting fluid needsto contain antirust agent and antioxidant to avoid the corrosion and oxidation of the NdFeB magnet.
Reduce frictional coefficient: The cutting fluid will reducethe feeding force by lowering the frictional coefficient between NdFeB magnet and grinding wheels. The roughness of the NdFeB magnet can also be improved by this lubrication action.
Cleaning: The surfactant in the cutting fluid will emulsify and disperse the greasy dirt on the work piece,eventually the dirt will be removed by the flow and pressure of cutting fluid.
The cutting fluid can be divided into water-based and oil-based. The oil-based cutting fluid is still widely used by most of Chinese NdFeB factories. The production environment of these factories is full of oil fog, and the oil fog is not only harmful to human health, but also dangerous to cause fire accidents.
The water-based cutting fluid will provide excellent cooling effect, low energy consumption and high efficiency. It is gradually replacing the oil-based fluid in metal-processing industry including permanent magnet industry. However, the best advantage of the water-based cutting fluid is its contribution to environmental protection. We care about the environment.