Multi-pole Radial Ring

Multi-pole Radial Ring, Sintered Neodymium Multi-Pole Radial Ring Rare Earth Permanent Magnet, Sintered Ferrite Multi-Poled Radial Ring Magnets, Multipole Plastic Bonded Magnets China Supplier and Factory

Multi-pole Radial Ring is a new type of ring magnet, produced by special technology. By this technology, surface magnetic flux can reach top level, about 50%-100% higher than the arc magnets and radial ring magnets. The surface flux is distributed by sine wave shape. Because of its high surface gauss, it can remarkably raise the efficiency of motors efficiency, and it also helps motor to be light-weight and save raw materials.These make it to be a good choice for high-performance motors. Multi-pole Radial Ring PDF BY MPCO

Magnetic Products Inc. can offer high efficiency multipole magnetic rings. These Neodymium (NdFeB) rings are revolutionizing the permanent magnet space for synchronous motors, stepping motors and DC brushless motors widely used in automotive, computers, electronics, communications, office, school equipment and common household products. Until recently, full magnetic rings were made of separate magnets joined together to create the desired ring shape. Now new technology enables the creation of super strong, one piece, multi-pole radial magnetic rings.

Multi-Pole Radial Orientation Ring Permanent Magnets

Multi-Pole Radial Orientation Ring Permanent Magnets


1-Higher flux density
2-Rotor shaft can be non-magnetic material, to reduce weight of motor without reducing magnet performance
3-Higher utilization of Permanent magnet
4-Motor assembly is made much easier; installation of one or more rings versus gluing arcs into place.
5-Radial sintering assures no “weak spots”.
6-Magnets are multi-poled – thus the ring does not compromise the magnetic properties
7-The radial orientation results in a super strong magnet by virtue of superior metallurgy developed specifically to be radially oriented.


This process consists of combining nanocrystalline base powders, pressing the resulting material, and then baking or sintering the resulting ring to achieve a radially magnetized product. This new technology improves the magnetic flux which in turn provides better efficiency and performance.

Multi-pole Radial Ring Magnet Dimension

Multi-pole Radial Ring Magnet Dimension

Available Dimensions:

O.D                  I.D             Wall Thickness(T)       Height(H)
<70mm         >15mm           2<T<5mm                25-50mm

Special sizes may be produced depending on the grade, height-to-diameter ratio, and wall thickness.

Applicationsof Multi-poled Radial Ring

Applicationsof Multi-poled Radial Ring


• Actuators
• Magnetic bearings
• Magnetic clutch
• Peripheral motors
• Spindle motors
• Steering control motors
• Servo motors
• Stepper motors
• Synchronous motors
• Linear actuator motors
• Powered tools
• Other new products

Grade Remanence
Intrinsic Coercivity
Max Energy Product
Operating Temp.
N35 11.7-12.2 ≥10.9 ≥12 33-36  (MGOe) 80
N38 12.2-12.5 ≥11.3 ≥12 36-39  (MGOe) 80
N48 13.8-14.2 ≥11.6 ≥12 46-49  (MGOe) 80
N35M 11.7-12.2 ≥10.9 ≥14 33-36  (MGOe) 100
N38M 12.2-12.5 ≥11.3 ≥14 36-39  (MGOe) 100
N45M 13.2-13.8 ≥12.5 ≥14 43-46  (MGOe) 100
N35SH 11.7-12.2 ≥11.0 ≥20 33-36  (MGOe) 150
N38SH 12.2-12.5 ≥11.4 ≥20 36-39  (MGOe) 150
N42SH 12.8-13.2 ≥12.4 ≥20 40-43  (MGOe) 150
N45SH 13.2-13.8 ≥12.6 ≥20 43-46  (MGOe) 150
N33UH 11.3-11.7 ≥10.7 ≥25 31-34  (MGOe) 180
N35UH 11.8-12.2 ≥10.8 ≥25 33-36  (MGOe) 180