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Sintered NdFeB Radial Oriented Ring
 

Introduction:
Radial ring is whole radial oriented ring magnet, it can be magnetized as multi-pole, skewed and uni-pole magnetized. The ring mainly used as induction magnet for motors. It can improve the motors’ performance and property. It is the future development tendency of motor magnets. NBJJ got the patent in 2003 and is one of the best sintered NdFeB ring magnet manufacturer in China.

Advantage:
● Assembling easier.
● Mechanical precision better.
● Stable magnetic property.
● Improve the motor performance.

Sintered NdFeB Radial Ring Process
Grade

Br

HcB

Hcj

(BH)max Max Working Temperature
KGs

T

KOe

KA/m

KOe

KA/m

MGOe KJ/m 3 L/D=0.7
Max

Min

Max

Min

Min

Min

Min

Min

Max Min Max Min
N35 12.3 11.8 1.23 1.18 ≥10.9 ≥868 ≥12 ≥955 36 33 287 263 ≤80
N38 12.6 12.3 1.26 1.23 ≥11.3 ≥899 ≥12 ≥955 39 36 311 287 ≤80
N40 12.9 12.6 1.29 1.26 ≥11.4 ≥907 ≥12 ≥955 41 38 327 302 ≤80
N42 13.3 12.9 1.18 1.29 ≥11.5 ≥915 ≥12 ≥955 43 40 342 318 ≤80
35H 12.3 11.8
1.23 1.18 ≥10.9 ≥868 ≥17 ≥1353 36 33 287 263 ≤120
38H 12.6 12.3 1.26 1.23 ≥11.3 ≥899 ≥17 ≥1353 39 36 311 287 ≤120
40H 12.9 12.6 1.29 1.26 ≥11.6 ≥923 ≥17 ≥1353 41 38 327 302 ≤120
42H 13.3 12.9 1.18 1.29 ≥12 ≥955 ≥17 ≥1353 43 40 342 318 ≤120
35SH 12.3 11.8 1.23 1.18 ≥11.0 ≥876 ≥20 ≥1592 36 33 287 263 ≤150
38SH 12.6 12.3 1.26 1.23 ≥11.4 ≥907 ≥20 ≥1592 39 36 311 287 ≤150
40SH 12.9 12.6 1.29 1.26 ≥11.6 ≥939 ≥20 ≥1592 41 38 326 302 ≤150
33UH 11.8 11.4 1.18 1.14 ≥10.7 ≥852 ≥25 ≥1989 34 31 271 247 ≤180
35UH 12.3 11.8 1.23 1.18 ≥10.8 ≥860 ≥25 ≥1989 36 33 287 263 ≤180
Remark:The material grade is for normal grade,butit need to discussing after made for radial oriented ring magnet.
 
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