Custom Magnetic Rotor Assembly

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Permanent Magnet Motor Assembly Manufacturer

Motor is an electromagnetic device which achieves conversion between mechanical energy and electric energy via the magnetic field. The air gap magnetic field for electromechanical energy conversion can be produced by applying the electric current to excitation winding or utilize permanent magnet. Permanent magnet motor refer to those motor which utilize permanent magnetic field to instead excitation windings. Permanent magnet motor generally can be classified into permanent magnet alternating current (PMAC) motor and permanent magnet direct current (PMDC) motor according to current form. PMDC motor and PMAC motor can be further divided to brush/brushless motor and asynchronous/synchronous motor, respectively. Permanent magnet excitation can significantly decrease power consumption and strengthen the running performance of the motor. Almost two-thirds of the rare earth permanent magnet are applied to manufacture various kinds of permanent magnet motors nowadays. Permanent magnet motor is primarily composed of the rotor and stator. The rotor and stator act as the moving and stationary part in the permanent magnet motor, respectively.

Magnetic Rotor Assemblies

The magnetic rotor assembly is one of the representative magnetic assemblies, and the rotor assembly is composed of metal parts and permanent magnets. In fact, depending on the application, motor type and assembly process, sintered neodymium magnets, sintered samarium cobalt magnets, bonded magnets and sintered ferrite magnets can all be used in the rotor assembly. It should be noted that laminated magnets made with magnet segmentation technology can also be used in assemblies to reduce eddy current losses.

Magnetic Stator Assemblies

Magnetic stator assemblies is also a representatives magnetic assembly,consisting of housing and permanent magnet which similar like magnetic rotor assembly. Permanent magnets are mounted on the housing, then housing working as the magnetic yoke to a form a magnetic circuit.

About Our Company

Magnetic material core technology research and development team

Hangzhou Zhiyu Magnetic Technology Co., Ltd. is China Permanent Magnet Assembly manufacturers and Permanent magnet motor rotor factory. Hangzhou Zhiyu Magnetic Technology Co., Ltd. is located in Tonglu County, Hangzhou City. It mainly focuses on the research and production of samarium cobalt permanent magnetic materials and magnetic components, and also sells magnetic steel and magnetic components such as neodymium iron boron and aluminum nickel cobalt.
The products are widely used in industries such as national defense and military, aerospace, permanent magnet (high-speed) motors, hydrogen energy compressors, automotive electronics, 5G communication, petrochemical, instrumentation, etc. The variety of samarium cobalt products is complete, with an annual production capacity of over 200 tons;
Fully covering the entire series of samarium cobalt grades of 1:5 and 2:17, covering the entire series of Br0.5T-1.2T;
Stable production of high-performance samarium cobalt magnetic steel with Br ≥ 1.16T and Hcj≥25KOe;
Stable production of Br≥0.96T low-temperature coefficient series products, with residual magnetic temperature coefficient a<-0.01%;
Stable production of ultra-high temperature (temperature resistance ≥ 550 ℃) and high Br (Br ≥ 1.02T) samarium cobalt magnetic steel;
Provide one-stop services from design to product application.

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Industry knowledge

What are the advantages of using a permanent magnet motor assembly compared to other motor types?
Using a permanent magnet motor assembly offers several advantages compared to other motor types. Here are some key advantages:
High Efficiency: Permanent magnet motors generally have higher efficiency compared to other motor types, such as induction motors. This higher efficiency translates into reduced energy consumption and lower operating costs over the lifetime of the motor.
Improved Power Density: Permanent magnet motors have a higher power density, meaning they can deliver more power in a smaller and lighter package. This makes them suitable for applications where space and weight are limited, such as in electric vehicles or small appliances.
Enhanced Starting Torque and Acceleration: Permanent magnet motors provide higher starting torque, allowing them to quickly reach desired speeds. They offer rapid acceleration and improved dynamic response, making them well-suited for applications that require quick starts or frequent speed changes.
Better Speed Control and Precision: Permanent magnet motors offer precise speed control and excellent speed regulation. They can maintain consistent speeds even under varying load conditions, making them ideal for applications that require accurate and reliable speed control, such as robotics or CNC machines.
Reduced Size and Noise: Permanent magnet motors tend to be more compact and have a smaller footprint compared to other motor types. Their compact size allows for easy integration into various systems and devices. Additionally, they typically produce less noise and vibration during operation, resulting in quieter and smoother operation.
Increased Durability and Reliability: Permanent magnet motors have a simpler construction with fewer moving parts, reducing the likelihood of mechanical failure and maintenance requirements. They offer excellent reliability, longer lifespan, and reduced downtime, resulting in increased overall system reliability.
Wide Speed Range: Permanent magnet motors can operate over a wide range of speeds, from low to high speeds, without sacrificing efficiency. This versatility makes them suitable for applications with varying speed requirements, such as fans, pumps, and variable-speed drives.
Regenerative Braking Capability: Permanent magnet motors can be used for regenerative braking, where the motor acts as a generator, converting kinetic energy into electrical energy. This feature is particularly beneficial in electric vehicles, elevators, and other applications where energy regeneration is desired.