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18 - 09
DATE
2026
Axial Flux Motor Rotor Magnet Fixation Solutions: A Technical Overview From Adhesive Bonding To Mechanical Locking
Axial flux motors are becoming the “new power darling” in fields such as new energy vehicles, humanoid robots, and low-altitude aircraft—at the same power, they are 50% lighter and 50% smaller in axial dimension. But manufacturing this flat disc-type motor is far from as simple as “flattening a cyli
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17 - 09
DATE
2026
High-Speed Motor Rotor Dynamic Balancing: Why Are Requirements More Stringent at Higher Speeds?
A motor with a speed of 30,000 revolutions per minute can, with even just a few milligrams of rotor mass eccentricity, generate centrifugal force sufficient to destroy its bearings within a few hours. This is no exaggeration—when speed increases by an order of magnitude, the vibration energy excited
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10 - 09
DATE
2026
How To Interpret Resolver Angle Accuracy And Electrical Error?
In motor control, new energy vehicle electric drives, servo system selection, or testing, engineers most frequently ask: "What is the accuracy of this resolver?" However, datasheets often list parameters like "Electrical error ≤ ±10′", "Angle accuracy ±15′", "Resolution 16 bits", etc., which can eas
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10 - 09
DATE
2026
Radially Magnetized Vs. Axially Magnetized Magnetic Rings: What’s The Difference?
In many motors, sensors, and magnetic transmission devices, we often encounter a key component—the magnetic ring (or magnet ring). It may look like a simple circular ring, but different magnetization directions can lead to completely different performance and application scenarios.The two most commo
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04 - 09
DATE
2026
How To Evaluate The High-Speed Field-Weakening Capability of Axial Flux Motors?
In recent years, axial flux motors have gained increasing traction in the electric drive community. They are regarded by many as one of the representative directions for next-generation high-performance motors, especially in applications where volume and weight are critical—such as in-wheel motors,
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03 - 09
DATE
2026
The "High-Temperature Assassin" of Frameless Torque Motors: How Serious Is The Risk of Magnet Demagnetization?
In high-performance motion control scenarios such as robot joints, collaborative robotic arms, and direct-drive rotary tables, frameless torque motors are becoming increasingly common. They have no housing, no bearings—essentially a "bare rotor + stator" power core that is embedded directly into the
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28 - 08
DATE
2026
Replacement of Optical Encoder with Magnetic Encoder: From Fragile To Robust
In industrial automation equipment, CNC machine tools, robot joints, servo motors, and similar applications, optical encoders are common angle and position feedback components. However, they have a "delicate" weakness: they are sensitive to dust, oil, vibration, and high temperatures. Once the inter
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27 - 08
DATE
2026
Carbon Fiber Sleeve Vs. Metal Sleeve: A Comparative Study on High-Speed Motor Rotor Performance
In fields such as high-speed motors, aviation electric drives, air compressors, and flywheel energy storage, rotor speeds are continuously increasing, and permanent magnets face significant tensile stress risks due to centrifugal forces. To protect the permanent magnets and ensure rotor structural i
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21 - 08
DATE
2026
Where Does The Phase Deviation of A High-Speed Rotating Magnetic Ring Come From? – Troubleshooting Guide for Robot Magnetic Encoder Sensor
In high-performance motion control applications such as servo motors, robot joints, and electric spindles, magnetic encoders are gaining popularity due to their small size, oil resistance, vibration tolerance, and low cost. However, many engineers encounter a thorny issue during high-speed rotation
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21 - 08
DATE
2026
Analysis of Sin/Cos Signal Distortion in Reluctance-Type Resolvers Under Strong Electromagnetic Interference -EV Resolver Sensor
In applications such as new energy vehicle electric drives and industrial servos, reluctance-type resolvers are widely used as motor rotor position sensors. They contain no semiconductor chips, withstand high temperatures, and resist vibration -they appear very “rugged.” However, many engineers enco
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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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