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Radially Oriented NdFeB Hot Pressed Neo

For product technical information, pricing and availability contact our sales department at:
(219) 548-3799
sales@allianceorg.com

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Radially Oriented NdFeB Magnets are some of the newest materials in the magnetics industry. The technology for producing rare earth ring magnets with radial magnetic fields has been around for decades, however only in recent years has the cost of manufacturing them come to a point where the magnets are an affordable replacement to traditional multi segmented arcs. There are three main manufacturing methods for producing bonded and sintered radial oriented rings:

Anisotropic Pressure Molding

Hot Pressing & Backward Extrusion

Radial Rotating Field Alignment

Each of these methods produces magnets with certain advantages and disadvantages over the others. Please click on the above links to view presentations on each material in order to determine what is best for your particular application.

Radial Bonded Magnetic Properties Remanent
Induction
Coercive
Force
Intrinsic
Coercive Force
Maximum
Energy Product
Reversible
Temperature Coefficients
Continuous
Working Temp.
Br (Gauss) Hc
(Oe)
Hci
(Oe)
(BH)max (MGOe) α
Br
ß
Hci
Tw
(°C)
Min Max Min Max Min Max Min Max %/°C %/°C Max
RB213 7,000 8,000 6,000 7,000 14,000 17,000 13.0 14.0 -0.11 -0.48 80
RB214 7,500 8,500 6,500 8,000 14,000 17,000 14.0 15.0 -0.11 -0.48 80
RB216 8,000 9,000 7,000 8,000 14,000 18,000 15.0 17.0 -0.11 -0.48 80
RB215 8,500 10,000 5,000 7,000 13,000 15,000 18.0 21.0 -0.11 -0.55 80
Radial Bonded Physical Properties Minimum
Density
Compressive
Strength
Young's
Modulus
Thermal
Expansion Coefficient /°C
Electrical Resistivity Curie   Temp
g/cm3 lbs/in3 psi MPa psi MPa ǁ
to M

to M
Ω-cm @ 20 C °C 
RB213 5.9 0.213 4,200 29 4×106 28,000 8.2×10-6 4.3×10-6 0.025 290
RB214 5.9 0.213 4,200 29 4×106 28,000 8.2×10-6 4.3×10-6 0.025 290
RB216 5.9 0.213 4,200 29 4×106 28,000 8.2×10-6 4.3×10-6 0.025 290
RB215 5.9 0.213 4,200 29 4×106 28,000 8.2×10-6 4.3×10-6 0.025 290
Hot Pressed Magnetic Properties Remanent
Induction
Coercive
Force
Intrinsic
Coercive Force
Maximum
Energy Product
Reversible
Temperature Coefficients
Continuous
Working Temp.
Br (Gauss) Hc
(Oe)
Hci
(Oe)
(BH)max (MGOe) α
Br
ß
Hci
Tw
(°C)
Min Max Min Max Min Max Min Max %/°C %/°C Max
HP34 12,200 12,600 11,300 12,300 13,000 16,000 38.0 43.0 -0.10 -0.50 80
HP50 14,400 14,500 13,100 13,900 14,000 18,000 47.0 51.0 -0.10 -0.50 80
HP42M 12,900 13,200 11,800 13,000 16,000 19,000 38.0 43.0 -0.10 -0.50 100
HP45M 13,300 13,700 12,000 13,100 16,000 19,000 40.0 46.0 -0.10 -0.50 100
HP40H 12,600 12,900 11,700 12,700 18,000 21,000 36.0 40.0 -0.10 -0.50 120
HP42H 12,900 13,200 12,200 13,100 18,000 21,000 36.0 41.0 -0.10 -0.50 120
HP45H 13,200 13,500 12,500 13,100 18,000 21,000 40.0 43.0 -0.10 -0.50 120
HP48H 13,500 14,000 13,100 13,600 18,000 21,000 43.0 46.0 -0.10 -0.50 120
HP35S 11,800 12,300 11,200 12,100 20,000 23,000 31.0 36.0 -0.10 -0.50 150
HP38S 12,200 12,600 11,600 12,400 20,000 23,000 35.0 39.0 -0.10 -0.50 150
HP40S 12,600 12,900 11,800 12,700 20,000 23,000 36.0 40.0 -0.10 -0.50 150
HP42S 12,900 13,200 12,200 13,100 20,000 23,000 38.0 41.0 -0.10 -0.50 150
HP45S 13,200 13,500 12,500 13,100 20,000 23,000 41.0 44.0 -0.10 -0.50 150
HP35U 11,800 12,300 11,200 12,100 25,000 28,000 31.0 36.0 -0.10 -0.50 180
HP38U 12,200 12,600 11,400 12,400 25,000 28,000 35.0 40.0 -0.10 -0.50 180
Hot Pressed Physical Properties Minimum
Density
Compressive
Strength
Young's
Modulus
Thermal
Expansion Coefficient /°C
Electrical Resistivity Curie   Temp
g/cm3 lbs/in3 psi MPa psi MPa ǁ
to M

to M
Ω-cm @ 20 C °C 
HP34 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP50 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP42M 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP45M 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP40H 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP42H 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP45H 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP48H 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP35S 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP38S 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP40S 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP42S 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP45S 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 350
HP35U 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 360
HP38U 7.6 0.275 21,750 150 22×106 152,000 1.2×10-6 -1×10-6 0.000135 360
Radial NdFeB Magnetic Properties Remanent
Induction
Coercive
Force
Intrinsic
Coercive Force
Maximum
Energy Product
Reversible
Temperature Coefficients
Continuous
Working Temp.
Br (Gauss) Hc
(Oe)
Hci
(Oe)
(BH)max (MGOe) α
Br
ß
Hci
Tw
(°C)
Min Max Min Max Min Max Min Max %/°C %/°C Max
RN35 11,800 12,600 9,500 11,500 12,000 14,000 31.0 37.0 -0.12 -0.60 80
RN38 12,000 12,800 9,600 11,600 12,000 14,000 32.0 40.0 -0.12 -0.60 80
RN42 12,200 13,000 9,700 11,700 12,000 14,000 324.0 42.0 -0.12 -0.60 80
RN35M 11,800 12,600 9,500 11,500 13,000 15,000 31.0 37.0 -0.12 -0.60 100
RN38M 12,000 12,800 9,600 11,600 13,000 15,000 32.0 40.0 -0.12 -0.60 100
RN42M 12,200 13,000 9,700 11,700 13,000 15,000 34.0 42.0 -0.12 -0.60 100
RN35H 11,800 12,600 9,600 11,600 14,000 16,000 31.0 37.0 -0.12 -0.60 120
RN38H 12,000 12,800 9,700 11,700 14,000 16,000 32.0 40.0 -0.12 -0.60 120
RN40H 12,100 12,900 9,700 11,700 14,000 16,000 33.0 41.0 -0.12 -0.60 120
RN42H 12,200 13,000 9,800 11,800 14,000 16,000 34.0 42.0 -0.12 -0.60 120
RN45H 12,500 13,500 9,900 11,900 14,000 16,000 36.0 45.0 -0.12 -0.60 120
RN35SH 11,800 12,600 9,700 11,700 16,000 18,000 31.0 37.0 -0.12 -0.60 150
RN38SH 12,000 12,800 9,800 11,800 16,000 18,000 32.0 40.0 -0.12 -0.60 150
RN40SH 12,100 12,900 9,800 11,800 16,000 18,000 33.0 41.0 -0.12 -0.60 150
RN42SH 12,200 13,000 10,000 12,000 16,000 18,000 34.0 42.0 -0.12 -0.60 150
RN35UH 11,800 12,600 9,800 11,800 19,000 21,000 31.0 37.0 -0.12 -0.60 180
RN38UH 12,000 12,800 10,000 12,000 19,000 21,000 32.0 40.0 -0.12 -0.60 180
Radial NdFeB Physical Properties Minimum
Density
Compressive
Strength
Bending
Strength
Thermal
Expansion Coefficient /°C
Electrical Resistivity Curie   Temp
g/cm3 lbs/in3 psi MPa psi MPa ǁ
to M

to M
Ω-cm @ 20 C °C 
RN35 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN38 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN42 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN35M 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN38M 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN42M 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN35H 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN38H 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN40H 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN42H 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN45H 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN35SH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN38SH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN40SH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN42SH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 310
RN35UH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 320
RN38UH 7.4 0.268 113,130 780 42,060 290 3.4×10-6 -4.8×10-6 0.000150 320
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