SINTERED NEO RADIAL RING

TRADITIONAL METHOD
Traditionally, multi-pole ring magnets were created using multiple arc magnets glued to the assembly. While spinning, it was not uncommon for the adhesive material loosen and the magnet would dislodge itself. Also, the requirements for exact accuracy between all of the magnets in the ring shape to have the exact same physical and magnetic properties – thus many magnets would fail because of the high requirements. But because of the technological limitations, for years there was no good solution.

MODERN METHOD
Now there is a better way to create circular magnets. By creating just one single magnet specifically designed for your application, we are able to provide your company a product that is stronger, more reliable, and more efficient. The magnets are multi-pole – which does not compromise the magnetic properties. Contact your MPCO Magnet sales representative to learn more about how this technology may help your company today!

SINTERED NEO RADIAL RING

SINTERED NEO RADIAL RING

APPLICATION
Stepper motors
Actuators
Magnetic bearings
Steering control motors
Magnetic clutch
Peripheral motors
Spindle motors

ADVANTAGES
Geometric precision
Variety of magnetic configuration
Homogeneous distribution of magnetic field
Design and assembly simplification
Precision of motor performances
Cost efficiency
Huge marketing potential

MAGNETIC FORCE

Regular Magnet

Radial Orientation

MAGNETIC ORIENTATION

Multiple Poles

Skewed Magnetization

Single Pole

RADIAL RING GRADES

Grade Remance
Br(Gs)
Intrinsic Coercivity
Hcj(Oe)
Coercivity
Hcb(Oe)
Max Energy Product
(BH)max
Operating Temp.
°C
N35R ≥11500 ≥12000 ≥9500 31-37(MGOe) 80
N38R ≥11800 ≥12000 ≥9600 32-40(MGOe) 80
N42R ≥12000 ≥12000 ≥9700 34-42(MGOe) 80
N35MR ≥11500 ≥13000 ≥9500 31-37(MGOe) 100
N38MR ≥11800 ≥13000 ≥9600 32-40(MGOe) 100
N42MR ≥12000 ≥13000 ≥9700 34-42(MGOe) 100
N35HR ≥11500 ≥14000 ≥9600 31-37(MGOe) 120
N38HR ≥11800 ≥14000 ≥9700 32-40(MGOe) 120
N42HR ≥12000 ≥14000 ≥9800 34-42(MGOe) 120
N35SHR ≥11500 ≥16000 ≥9700 31-37(MGOe) 150
N38SHR ≥11800 ≥16000 ≥9800 32-40(MGOe) 150
N42SHR ≥12000 ≥16000 ≥10000 34-42(MGOe) 150
N35UHR ≥11500 ≥19000 ≥9800 31-37(MGOe) 180
N38UHR ≥11800 ≥19000 ≥10000 32-40(MGOe) 180

RECOMMENDED DIMENSIONS

Diameter: 20–45 mm
Height: < 30 mm