Magnetizing Equipment

Magnetization Automation

Magnet Measuring Instruments

Magnetization Services

R&D teams at many factories ask: “I’m using N50 neodymium-iron-boron magnets. According to theoretical calculations, the torque should reach 0.5 N·m, so why does the measurement after magnetization show only 0.38? The magnet supplier says there’s nothing wrong with the magnets, so where is the problem?” In many cases, this has to do with yourMagnetizerThis is directly related to whether the product features are a good fit.

Actually, the crux of this issue is thatMagnetization Not Saturated—— Our theoretical torque calculations are all based on the assumption that the permanent magnets have reached saturation remanence; however, in actual production, the unique structure of stepper motors, combined with ordinaryMagnetizerWith the standard configuration, the effective magnetic field for magnetization often fails to meet the saturation requirements.

In stepper motors—especially micro stepper motors—the rotor magnets are often small, ring-shaped magnets, frequently with an outer diameter of only 8–20 mm, yet they must accommodate 10–20 pairs of magnetic poles. TraditionalMagnetizerThe standard magnetizing coil supplied with the product has a very limited coil window area due to the small size of the magnet, making it impossible to fit an excitation coil with sufficient ampere-turns; Even if one were to attempt to increase the coil’s outer diameter to boost the ampere-turns, this would result in a longer magnetic path and a sharp increase in leakage flux. Ultimately, the effective magnetic field actually acting within the magnet would fall far short of the peak magnetic field of 3 T or higher required for the saturation magnetization of neodymium-iron-boron magnets.

To address this structural bottleneck, many factories opt for customizedMagnetizer, paired with a custom single-turn, low-inductance magnetizing coil, combined with a low-voltage, high-current pulse discharge scheme: The low inductance characteristics of the single-turn coil enable an extremely rapid current response, boosting the effective magnetic field to over 5 T in a very short time—sufficient to penetrate small-volume magnets and allow the magnetic domains to align fully, ultimately restoring the magnet’s remanence to the standard value, thereby enabling the torque to meet design requirements.

Magnetization of Magnetic Materials

3C Electronic Magnetization

Motor Rotor Magnetization

Car Speaker Magnetization

New Energy Vehicle Industry

Medical Equipment Industry

Other Industries

Video Case Study on the Magnetization Process for Jiuju Irregular-Shaped Cobalt Magnets—Jiuju Magnetizer

September 12, 2026

Irregularly shaped samarium-cobalt magnets have complex magnetic pole configurations. Combined with the high-temperature resistance and high coercive force of samarium-cobalt materials, this makes them highly prone to issues such as magnetic field non-uniformity and uneven magnetization during magnetization, placing high demands on tooling and process parameters.

Video Case Study on the Magnetization Process for Sintered Neodymium-Iron-Boron Magnetic Rings—Jiuju Magnetizer

September 11, 2026

Sintered neodymium-iron-boron magnetic rings are widely used in precision equipment such as motors and sensors; multipole magnetization imposes stringent requirements on magnetic field uniformity and the positioning accuracy of the magnetic poles.

Video Demonstrating How Jiuju Cobalt Magnets Achieve Stable Magnetization—Jiuju Magnetizer

September 9, 2026

Thanks to their high coercivity and high-temperature resistance, samarium-cobalt magnets are widely used in high-temperature precision applications, where stable and uniform magnetic output is key to ensuring their core performance.

Video on Automatic Magnet Magnetization—Jiuju Magnetizer

August 17, 2026

Magnetization itself is a physical process that takes place in milliseconds; what truly slows down the overall production cycle are the manual loading, unloading, and alignment and calibration steps. In manual magnetization mode, workers must pick up and place each part individually and verify the polarity direction, which takes several seconds per part. Production capacity fluctuates significantly depending on the workers’ skill level and fatigue, and the strong magnetic field environment also poses safety hazards.

Magnetization for Magnetic Phone Chargers – Precisely Aligned with Core Magnetic Charging Processes

November 13, 2025

We specialize in magnetization and testing services for magnetic phone charger heads and magnetic data cables. Using precise magnetization processes, we ensure stable magnetic performance of charger heads and professionally verify that data cables meet magnetic performance standards. This guarantees secure connections, reliable use, and compatibility with all mobile magnetic charging scenarios.

JIUJU Electronic Magnetizers: Solving Industry Pain Points and Achieving the Optimal Balance of Performance and Cost

November 11, 2025

JIUJU electronic magnetizers address the challenges faced by electronics manufacturers. Using transformer step-up and pulse phase-shift control technology, they ensure magnetization precision and efficiency. Intelligent dual cooling and optimized material selection reduce costs, achieving a balance of high performance and low cost while improving production efficiency.

Video Demonstrating the Magnetization of Jiuju High-Frequency Drivers—Jiuju Magnetizer

September 14, 2026

Problems such as unusual noises during motor operation, reduced power output, and increased energy consumption often stem not from damaged windings or bearings, but from uneven magnetic field distribution.

Unusual Noises and Power Loss in Motors? The Root Cause Is an Uneven Magnetic Field—Jiuju Magnetizing Machine

September 6, 2026

Problems such as unusual noises during motor operation, reduced power output, and increased energy consumption often stem not from damaged windings or bearings, but from uneven magnetic field distribution.

Why Magnetic Field Measurement Is Essential for Mass Production Quality Control of Permanent Magnet Motors—Jiuju Magnetizing Machines

September 5, 2026

The power output and operational stability of permanent magnet motors depend primarily on the consistency of the magnetic properties of the magnets; in mass production settings, surface magnetic field testing is an indispensable and critical step in quality control.

Video on Automatic Magnetization of Bearing Steel—Jiuju Magnetizer

August 19, 2026

SK3 high-carbon steel is a type of carbon tool steel. It is not a permanent magnet material in itself, but can be made to possess stable magnetic properties through a specialized magnetization process, meeting the requirements of industrial applications such as magnetic bearings and positioning and holding.

Video Demonstrating Jiuju's Magnetization Process for Antique Speakers—Jiuju Magnetizer

September 13, 2026

To address the need for rework due to defective magnetic circuits in audio speakers, the restoration of demagnetized finished products, and the elimination of residual magnetism during the production process, Jiuju offers an integrated magnetization and demagnetization process solution that covers magnetic circuit components for speakers of all sizes, including both internal and external magnet types.

Video Demonstrating the Magnetization Process for Jiuju Speakers—Jiuju Magnetizer

September 10, 2026

To address the need for rework due to defective magnetic circuits in audio speakers, the restoration of demagnetized finished products, and the elimination of residual magnetism during the production process, Jiuju offers an integrated magnetization and demagnetization process solution that covers magnetic circuit components for speakers of all sizes, including both internal and external magnet types.

Why Does the Tip “Stick” to the Screw? A Video Explanation of Magnetization—Jiuju Magnetizing Machine

August 2, 2026

Magnetic screwdrivers are typically made of alloy steel, which inherently possesses some residual magnetism. When magnetized, the screwdriver is placed in a strong pulsed magnetic field, causing the internal magnetic domains to align axially. Once the external magnetic field is removed, the screwdriver retains a stable magnetic field, enabling it to attract iron screws.

Case Study: Magnetizing and Restoring Vintage Audio Speakers—Jiuju Magnetizing Machine

July 6, 2026

In the field of audio collection and repair, due to the age of antique speakers, long-term use or storage environment, there are often magnet demagnetization problems, resulting in weak sound, declining resolution, low-frequency loss, losing the original sound quality level. Relying on professional magnetizing equipment and mature technology, JiuJu Automation has completed many cases of antique speaker magnetization repair, and the following combines real data and practical procedures to introduce the technology and examples in detail.

Video on Magnetizing Automotive Motor Rotors—Jiuju Magnetizing Machine

July 22, 2026

Jiuju Automation’s automotive motor rotor magnetization machine utilizes advanced magnetization technology to ensure a uniform and stable rotor magnetic field, thereby enhancing motor performance and efficiency. It is widely used in the manufacturing of drive motors for new energy vehicles.

Video Case Study: Magnetizing Machine for Automotive Motor Rotors—Jiuju Magnetizing Machine

July 5, 2026

”In traditional pre-magnetization processes, magnetizing the magnets in advance causes the magnetic poles to repel each other and attract iron filings during motor assembly, which limits yield rates and poses safety hazards.” The "assemble first, magnetize later" approach uses integrated magnetization technology to allow magnets to be precisely positioned in a non-magnetized state, with magnetization and shaping performed uniformly after assembly is complete. This innovation eliminates magnetic interference, enables the design of motors with higher rotational speeds, and boosts assembly efficiency by more than 30%. It is rapidly becoming the mainstream choice among manufacturers of new energy motors and servo motors.

JIUJU Four-Station Motor Magnetizer – A Revolutionary Solution to Enhance New Energy Vehicle Motor Manufacturing Efficiency

November 10, 2025

Professional Four-Station Motor Magnetizer Solution – Providing highly efficient, automated magnetization and testing integrated equipment for new energy vehicles, consumer electronics, and industrial motor manufacturers. Significantly boosts production efficiency by 300%, reduces labor costs, and ensures consistent product quality.

JiuJu Magnetic Stripe Magnetization Video Case: Medical Magnetic Stripe Magnetization

January 7, 2026

Jiuju Magnetization Video Case Study: Magnetization of Medical Magnetic Strips. Jiuju Automation (Little Giant) provides magnetization equipment, surface magnetic field detection, and comprehensive magnetic circuit solutions, with magnetic flux density fluctuations of ±0.21 TP3T and “magnetize and test immediately” capabilities. Contact Jiuju Automation for quotes on additional magnetization solutions: +86 134-2897-6919/180-0255-6337WeChat ID and email addresssam@szjiuju.comThe

Video Guide on How to Select a Magnetizing Machine—Jiuju Magnetizing Machines

August 8, 2026

When selecting a magnetizing machine, most people focus solely on the main unit’s power as their first step—and this is precisely the biggest misconception. The magnetizing effect depends on the synergy between energy output and the magnetic field focusing provided by the fixture, not simply on the rated power.

A 20-Second Video Guide on How to Choose a Magnetizing Machine—Jiuju Magnetizing Machine

July 21, 2026

Learn how to select the right Jiuju magnetizing machine in just 20 seconds and easily find the model that fits your needs. You can check the specifications from multiple angles one by one. Start by determining the type of magnet in your product; different materials correspond to specific machine specifications.

3000V Magnetizing Machine and Chiller Operation Demonstration Video—Jiuju Magnetizing Machine

July 3, 2026

This issue provides a comprehensive guide to the standard operating procedures for ice water machines. Mastering the correct usage will effectively improve the equipment’s operational efficiency. Before starting the machine, inspect the piping, wiring, and water level to ensure there are no leaks and that all components are in good condition. Turn on the main power supply, check the equipment’s self-test status, and set operating parameters such as water temperature and pressure according to production requirements.

Video on the Wiring Procedure for a 3000V General-Purpose Industrial Magnetizer—Jiuju Magnetizer

July 2, 2026

Before proceeding, be sure to disconnect the equipment from the main power supply and verify that the unit is completely de-energized to prevent any live wiring work. First, inspect the power cord and connection cables to ensure there is no visible damage or wear, and that the connectors are free of debris and dirt. Match the connectors to the corresponding labels on the equipment, and connect the power supply line, magnetizing coil line, and control line in sequence. Ensure the plugs are securely locked into place, and arrange the cables neatly so they are not pinched or tangled.