Powerful Performance Small Ring Ultimate Magnets Ф8.0*Ф7.0*3.0mm N38, High Precise Tiny Magnet, Neodymium Iron Boron Micro Ring Magnets, sintered NdFeB Ultimate Magnets China Supplier Powerful Performance Small Ring Ultimate Magnets Dimension Ф8.0*Ф7.0*3.0mm, Zinc coating, Shape ring, Grade N38 The Ultimate Magnets! Neodymium Iron Boron (NdFeB) is used to manufacture the most powerful magnets per unit […]
N35AH Sintered NdFeB Arc Laminated Magnets FOR Reduce Energy Loss, Reduction in Eddy Current by Splitting Magnets, High-speed permanent magnet motor NdFeB Lamination Arc Magnet, insulated magnet or glued type magnet for Reduce Eddy Current Loss in High Efficiency Motors, sintered Ndfeb / SmCo permanent magnets, Segmentation Technology Magnet
N35AH Sintered NdFeB Arc Laminated Magnets FOR Reduce Energy Loss Part No. HSLAMIM-15
Customzied Specific Requirements
Know as Lamination Magnetic Core
OEM or ODM service: Accept
Dimension: Customized size
Custom Grade: N33-N54(M.H.SH.UH.EH.AH )
Magnetization direction: Thickness, Length, Axially, Diametre, Radially, Multipolar
Surface Treatment: UNCOATED, Silver, Gold, Zinc, Ni-cu-Ni. Epoxy etc.
Tolerance: +/-0.02 – 0.05mm
Application: NdfeB Neodymium rare earth permanent magnets are widely applied in Auto, energy-efficient Motors and Generators, Machinery, Audio/Video and Communication Equipment, Medical Device(MRI), Office Automation, Magnetic Separator, etc.
Laminated magnet is produced with several pieces of magnets glued so as to reach insulation effect between those pieces. Therefore sometimes laminated magnet is also called insulated magnet or glued magnet. Laminated SmCo or laminated Neodymium rare earth magnets are proven to reduce the eddy current loss for the high efficiency motors.
In the permanent magnet synchronous motor, since the rotor rotates in synchronization with the stator, we offen ignore the eddy current loss in the rotor. In fact, stator slot effect, non-sinusoidal distribution of winding magnetic force and the harmonic magnetic potential generated by the harmonic currents in the coil winding will also cause eddy current loss in the permanent magnets of the rotor, the rotor yoke, and the metal sheath of the bundled permanent magnets. Block Laminated Motor Magnets for Eddy Current Loss
Since the highest working temperature of sintered NdFeB magnets is 220℃(N35AH), the higher working temperature, the lower magnetic properties of NdFeB magnets, the conversion and power of motor will be reduced. This is called heat loss! These eddy current loss may cause high temperature rises, causing local demagnetization of the permanent magnets, which is particularly serious in some high-speed or high-frequency permanent magnet sychronous motors.
The heat loss mainly comes from the electromagnetic eddy current in the operation of the motor. Thus, multiple stacking method( it needs insulation between each magnets) to reduce this heat loss.
The fewer the eddy current loss becomes, the lower the heat generates to enhance higher efficiency. Nowadays the demand of laminated rare earth magnets has been going up, because aerospace, industrial markets and promising EV especially are dedicating to pursuing the balance between motor power and heat. Custom Drawing Design Block Insulated Magnet Thanks to knowledge in electric motor and extensive experience in laminated magnets, Horizon can work with customers to improve motor performance through ensuring laminated magnets with following characteristics:
Stable working at temperature up to 200˚C
Consistency of insulation guaranteed
Insulation layer ranging 25 -100 μm
Magnet layer with thickness from 0.5mm and up in a wide of shapes like block, loaf, segment and wedge
Magnet material in SmCo or Neodymium
Scope of application: High-speed permanent magnet motor.
Advantage: It can reduce the energy loss caused by electromagnetic eddy currents.
From this research and development project to test samples, our technical team spent more than a year on this project. We always believe that technological R&D is the core competitiveness of a company. As long as customers put forward ideas, we can provide one-stop solution service.