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05 - 09
DATE
2025
Detailed Explanation of Surface Treatment Technology for NdFeB Magnets
Why Does a Small Magnet Need a "Gold Coating"?In air at a high temperature of 150°C, an unprotected NdFeB magnet can be completely oxidized and corroded in just 51 days, ultimately losing its magical magnetic force.As the "King of Magnets" in modern industry, NdFeB magnets are widely used in new ene
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28 - 08
DATE
2025
Key Design Points for Variable Reluctance Resolvers
I. Core Principles of Variable Reluctance ResolversFirst, to understand the design, one must understand its fundamental differences from traditional wound-rotor resolvers:· Traditional Resolver: Both stator and rotor have windings. The excitation signal and output signal are electromagnetically indu
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21 - 08
DATE
2025
Selection Guide for Magnetic Reluctance Resolvers
Reluctance resolvers, as high-precision angle sensors, play an indispensable role in fields such as industrial automation, new energy vehicles, and humanoid robots. Faced with a dazzling array of product models on the market, selecting the right reluctance resolver has become a necessary skill for e
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15 - 08
DATE
2025
High-Speed Motor Rotor Technology
Behind the lightning-fast acceleration of new energy vehicles, within the precision and silent drills in dentists' hands, and inside the high-speed operation of precision machine tools in factories, there lies an unsung technological hero—the high-speed motor rotor. This rotating component, with a d
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31 - 07
DATE
2025
Principles And Applications of Reluctance Resolvers Explained
In modern industrial automation and precision mechanical control, accurate rotational position detection is crucial. The reluctance resolver, commonly referred to as a resolver, is a highly reliable sensor widely used in servo motors, robotics, and other applications requiring precise positioning. T
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27 - 05
DATE
2025
Still Concerned About Overheating Issues with Traditional Magnetic Steels? Consider SDM Anti-Eddy Current Magnetic Steel ForEnhanced Thermal Performance, Cost Efficiency, And Extended Service Life! 
Please observe! This ordinary iron rod, when positioned within a coil, rapidly heats up and begins to emit smoke! Remarkably, when a human hand is placed in the same coil under identical conditions, no such reaction occurs. What's the scientific principle underlying this seemingly paradoxical phenom
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20 - 05
DATE
2025
What Is The Principle Behind Magnetic Coupling? A Video Explains It All.
If the large rotary crusher were to become jammed during operation, it could potentially result in damage to its motor. Similarly, in the case of a chemical agitator, its propeller is connected to the motor through a shaft. If the shaft seal were to leaks, the resultant chemical spill could potenti
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13 - 05
DATE
2025
Magnetic Couplings Enable Power Transmission without Direct Contact.
Pay attention: These two half-couplings transfer power without any physical contact between them. This is the Axial Magnetic Coupling, a device that transmits torque through magnetic fields.No openings required, non-contact transmission, and leak-proof.Another type is our Radial Magnetic Coupling, h
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SDM Magnetics is one of the most integrative magnet manufacturers in China. Main products : Permanent magnet,Neodymium magnets,Motor stator and rotor, Sensor resolvert and magnetic assemblies.
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