Tube Magnets is similar as Ring Magnets, one popular shape of Rare earth magnets and perment magnets.
It is always manufactured via Cutting, Slicing, Drilling, and grinding etc .Ring magnets have the following important factors such as, Outer Diameter, Inner Diameter, Height etc
Magnetic Characteristics And Physical Properties of Sintered NdFeB magnets |
|||||
Properties |
Remanence |
Coercive Force |
Intrinsic Coercive Force |
Max Energy Product |
Max Working Temp |
|
Br |
Hcb |
Hcj |
(BH)max |
Tw |
Grade |
mT(KGs) |
KA/m (KGs) |
KA/m (KOe) |
KJ/m 3 ( MGOe ) |
℃ |
N-30 |
1080-1130 |
≥ 796 |
≥ 955 |
223-247 |
≤ 80 |
(10.8-11.3) |
( ≥ 10) |
( ≥ 12) |
(28-31) |
||
N-33 |
1130-1180 |
≥ 836 |
≥ 955 |
247-270 |
≤ 80 |
(11.3-11.8) |
( ≥ 10.5) |
( ≥ 12) |
(31-34) |
||
N-35 |
1170-1220 |
≥ 868 |
≥ 955 |
263-287 |
≤ 80 |
(11.7-12.2) |
( ≥ 10.9) |
( ≥ 12) |
(33-36) |
||
N-38 |
1220-1250 |
≥ 899 |
≥ 955 |
287-310 |
≤ 80 |
(12.2-12.5) |
( ≥ 11.3) |
( ≥ 12) |
(36-39) |
||
N-40 |
1250-1280 |
≥ 923 |
≥ 955 |
302-326 |
≤ 80 |
(12.5-12.8) |
( ≥ 11.6) |
( ≥ 12) |
(38-41) |
||
N-42 |
1280-1320 |
≥ 923 |
≥ 955 |
318-342 |
≤ 80 |
(12.8-13.2) |
( ≥ 11.6) |
( ≥ 12) |
(40-43) |
||
N-45 |
1320-1380 |
≥ 876 |
≥ 955 |
342-366 |
≤ 80 |
(13.2-13.8) |
( ≥ 11.0) |
( ≥ 12) |
(43-46) |
||
N-48 |
1380-1420 |
≥ 836 |
≥ 876 |
366-390 |
≤ 80 |
(13.8-14.2) |
( ≥ 10.5) |
( ≥ 11) |
(46-49) |
||
N-50 |
1400-1450 |
≥ 860 |
≥ 876 |
382-406 |
≤ 80 |
(14.0-14.5) |
( ≥ 10.8) |
( ≥ 11) |
(48-51) |
||
30M |
1080-1130 |
≥ 796 |
≥ 1114 |
223-247 |
≤ 100 |
(10.8-11.3) |
( ≥ 10) |
( ≥ 14) |
(28-31) |
||
33M |
1130-1180 |
≥ 836 |
≥ 1114 |
247-270 |
≤ 100 |
(11.3-11.8) |
( ≥ 10.5) |
( ≥ 14) |
(31-34) |
||
35M |
1170-1220 |
≥ 868 |
≥ 1114 |
263-287 |
≤ 100 |
(11.7-12.2) |
( ≥ 10.9) |
( ≥ 14) |
(33-36) |
||
38M |
1220-1250 |
≥ 899 |
≥ 1114 |
287-310 |
≤ 100 |
(12.2-12.5) |
( ≥ 11.3) |
( ≥ 14) |
(36-39) |
||
40M |
1250-1280 |
≥ 923 |
≥ 1114 |
302-326 |
≤ 100 |
(12.5-12.8) |
( ≥ 11.6) |
( ≥ 14) |
(38-41) |
||
42M |
1280-1320 |
≥ 955 |
≥ 1114 |
318-342 |
≤ 100 |
12.8-13.2 |
( ≥ 12.0) |
( ≥ 14) |
(40-43) |
||
45M |
1320-1380 |
≥ 995 |
≥ 1114 |
342-366 |
≤ 100 |
(13.2-13.8) |
( ≥ 12.5) |
( ≥ 14) |
(43-46) |
||
48M |
1360-1430 |
≥ 1027 |
≥ 1114 |
366-390 |
≤ 100 |
(13.6-14.3) |
( ≥ 12.9) |
( ≥ 14) |
(46-49) |
||
50M |
1400-1450 |
≥ 1033 |
≥ 1114 |
382-406 |
≤ 100 |
(14.0-14.5) |
( ≥ 13.0) |
( ≥ 14) |
(48-51) |
||
30H |
1080-1130 |
≥ 796 |
≥ 1353 |
223-247 |
≤ 120 |
(10.8-11.3) |
( ≥ 10) |
( ≥ 17) |
(28-31) |
||
33H |
1130-1180 |
≥ 836 |
≥ 1353 |
247-271 |
≤ 120 |
(11.3-11.8) |
( ≥ 10.5) |
( ≥ 17) |
(31-34) |
||
35H |
1170-1220 |
≥ 868 |
≥ 1353 |
263-287 |
≤ 120 |
(11.7-12.2) |
( ≥ 10.9) |
( ≥ 17) |
(33-36) |
||
38H |
1220-1250 |
≥ 899 |
≥ 1353 |
287-310 |
≤ 120 |
(12.2-12.5) |
( ≥ 11.3) |
( ≥ 17) |
(36-39) |
||
40H |
1250-1280 |
≥ 923 |
≥ 1353 |
302-326 |
≤ 120 |
(12.5-12.8) |
( ≥ 11.6) |
( ≥ 17) |
(38-41) |
||
42H |
1280-1320 |
≥ 955 |
≥ 1353 |
318-342 |
≤ 120 |
(12.8-13.2) |
( ≥ 12.0) |
( ≥ 17) |
(40-43) |
||
45H |
1320-1380 |
≥ 963 |
≥ 1353 |
342-366 |
≤ 120 |
(13.2-13.8) |
( ≥ 12.1) |
( ≥ 17) |
(43-46) |
||
48H |
1370-1430 |
≥ 995 |
≥ 1274 |
366-390 |
≤ 120 |
(13.7-14.3) |
( ≥ 12.5) |
( ≥ 16) |
(46-49) |
||
30SH |
1080-1130 |
≥ 804 |
≥ 1592 |
223-247 |
≤ 150 |
(10.8-11.3) |
( ≥ 10.1) |
( ≥ 20) |
(28-31) |
||
33SH |
1130-1170 |
≥ 844 |
≥ 1592 |
247-271 |
≤ 150 |
(11.3-11.7) |
≥ 10.6 |
( ≥ 20) |
(31-34) |
||
35SH |
1170-1220 |
≥ 876 |
≥ 1592 |
263-287 |
≤ 150 |
(11.7-12.2) |
( ≥ 11.0) |
( ≥ 20) |
(33-36) |
||
38SH |
1220-1250 |
≥ 907 |
≥ 1592 |
287-310 |
≤ 150 |
(12.2-12.5) |
( ≥ 11.4) |
( ≥ 20) |
(36-39) |
||
40SH |
1250-1280 |
≥ 939 |
≥ 1592 |
302-326 |
≤ 150 |
(12.5-12.8) |
( ≥ 11.8) |
( ≥ 20) |
(38-41) |
||
42SH |
1280-1320 |
≥ 995 |
≥ 1592 |
318-342 |
≤ 150 |
(12.8-13.2) |
( ≥ 12.5) |
( ≥ 20) |
(40-43) |
||
45SH |
1320-1380 |
≥ 1003 |
≥ 1592 |
342-366 |
≤ 150 |
(13.2-13.8) |
( ≥ 12.6) |
( ≥ 20) |
(43-46) |
||
28UH |
1020-1080 |
≥ 764 |
≥ 1990 |
207-231 |
≤ 180 |
(10.2-10.8) |
( ≥ 9.6) |
( ≥ 25) |
(26-29) |
||
30UH |
1080-1130 |
≥ 812 |
≥ 1990 |
223-247 |
≤ 180 |
(10.8-11.3) |
( ≥ 10.2) |
( ≥ 25) |
(28-31) |
||
33UH |
1130-1170 |
≥ 852 |
≥ 1990 |
247-271 |
≤ 180 |
(11.3-11.7) |
( ≥ 10.7) |
( ≥ 25) |
(31-34) |
||
35UH |
1180-1220 |
≥ 860 |
≥ 1990 |
263-287 |
≤ 180 |
(11.8-12.2) |
( ≥ 10.8) |
( ≥ 25) |
(33-36) |
||
38UH |
1220-1250 |
≥ 907 |
≥ 1990 |
287-310 |
≤ 180 |
(12.2-12.5) |
( ≥ 11.4) |
( ≥ 25) |
(36-39) |
||
30EH |
1080-1130 |
≥ 812 |
223-247 |
≤ 200 |
|
(10.8-11.3) |
( ≥ 10.2) |
( ≥ 30) |
(28-31) |
||
33EH |
1130-1170 |
≥ 812 |
≥ 2388 |
247-271 |
≤ 200 |
(11.3-11.7) |
( ≥ 10.2) |
( ≥ 30) |
(31-34) |
||
35EH |
1170-1220 |
≥ 876 |
≥ 2388 |
263-287 |
≤ 200 |
(11.7-12.2) |
( ≥ 11.0) |
( ≥ 30) |
(33-36) |
||
30AH |
1080-1130 |
≥ 812 |
≥ 2785 |
223-247 |
≤ 240 |
(10.8-11.3) |
( ≥ 10.2) |
( ≥ 35) |
(28-31) |
||
33AH |
1130-1170 |
≥ 812 |
≥ 2785 |
247-271 |
≤ 240 |
(11.3-11.7) |
( ≥ 10.2) |
( ≥ 35) |
31-34 |
||
|
|
|
|
|
|
NOTES: |
The above-mentioned data of magnetic parameters and physical properties ars given at room temperature. |
The maximum service temperature of magnet is changeable due to the ratio length and diameter and |
Environmental factors. |
Density: 7.4~7.6g/cm 3 ; α Br:-0.09~0.13%/ ℃, β Hcj: -0.50~0.80%/ ℃; Hv:600. |