What Are You Looking For?
Ring Magnets are widely used in such applications as holding, motors, consumer electronics, medical, sensors and speakers.
Size :
Ø 30/20 x 5 mmColor :
SilverOrder(MOQ) :
100pcsCoating :
NiCuNiLead Time :
3-15daysPayment :
Paypal/TT/Credit CardRare Earth Strong Magnetic Rings NdFeB Magnets
Product Description
Dimensions: Ø 30/20 x 5 mm
Tolerances: ±0.004" x ±0.004"
Plating/Coating: Ni-Cu-Ni (Nickel)
Magnetization Direction: Axial (Poles on Flat Ends)
Warning:
Keep away from pacemakers.
Always practice safe handling and keep away from children at all times.
Specification
Neodymium | Br | Hcb | Hcj | (Bh)max | Tw | ||||
Grade | mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ℃ |
N35 | 1170-1220 | 11.7-12.2 | >868 | >10.9 | >955 | >12 | 263-287 | 33-36 | <80 |
N38 | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >955 | >12 | 287-310 | 38-39 | <80 |
N40 | 1250-1280 | 12.5-12.8 | >907 | >11.4 | >955 | >12 | 302-326 | 38-41 | <80 |
N42 | 1280-1320 | 12.8-13.2 | >915 | >11.5 | >955 | >12 | 318-342 | 40-43 | <80 |
N48 | 1380-1420 | 13.8-14.2 | >923 | >11.6 | >955 | >12 | 366-390 | 46-49 | <80 |
N50 | 1400-1450 | 14.0-14.5 | >796 | >10 | >876 | >11 | 382-406 | 48-49 | <80 |
N52 | 1430-1480 | 14.3-14.8 | >796 | >10 | >876 | >11 | 398-422 | 50-53 | <80 |
35M | 1170-1220 | 11.7-12.2 | >868 | >10.9 | >1114 | >14 | 263-297 | 33-36 | <100 |
38M | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >1114 | >14 | 297-310 | 36-39 | <100 |
40M | 1250-1280 | 12.5-12.8 | >923 | >11.6 | >1114 | >14 | 302-326 | 38-41 | <100 |
42M | 1280-1320 | 12.8-13.2 | >955 | >12 | >1114 | >14 | 318-342 | 40-43 | <100 |
48M | 1360-1430 | 13.6-14.3 | >1027 | >12.9 | >1114 | >14 | 366-390 | 46-49 | <100 |
50M | 1400-1450 | 14.0-14.5 | >1033 | >13 | >1114 | >14 | 382-406 | 48-51 | <100 |
33H | 1130-1170 | 11.3-11.7 | >836 | >10.5 | >1353 | >17 | 247-271 | 31-34 | <120 |
35H | 1170-1220 | 11.7-12.2 | >868 | >10.9 | >1353 | >17 | 263-287 | 33-36 | <120 |
38H | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >1353 | >17 | 287-310 | 36-39 | <120 |
40H | 1250-1280 | 12.5-12.8 | >923 | >11.6 | >1353 | >17 | 302-326 | 38-41 | <120 |
42H | 1280-1320 | 12.8-13.2 | >955 | >12 | >1353 | >17 | 318-342 | 40-43 | <120 |
45H | 1300-1360 | 13-13.6 | >963 | >12.1 | >1353 | >17 | 326-358 | 43-46 | <120 |
48H | 1370-1430 | 13.7-14.3 | >995 | >12 | >1353 | >17 | 366-390 | 46-49 | <120 |
30SH | 1080-1130 | 10.8-11.3 | >804 | >10.1 | >1592 | >20 | 223-247 | 28-31 | <150 |
33SH | 1130-1170 | 10.3-11.7 | >844 | >10.6 | >1592 | >20 | 247-271 | 31-34 | <150 |
35SH | 1170-1220 | 11.7-12.2 | >876 | >11 | >1592 | >20 | 263-287 | 33-36 | <150 |
38SH | 1220-1250 | 12.2-12.5 | >907 | >11.4 | >1592 | >20 | 287-310 | 36-39 | <150 |
40SH | 1240-1280 | 12.5-12.8 | >939 | >11.8 | >1592 | >20 | 302-326 | 36-41 | <150 |
42SH | 1280-1320 | 12.8-13.2 | >987 | >12.4 | >1592 | >20 | 318-342 | 40-43 | <150 |
45SH | 1320-1380 | 13.2-13.8 | >1003 | >12.6 | >1592 | >20 | 342-366 | 43-46 | <150 |
28UH | 1020-1080 | 10.2-10.8 | >764 | >9.6 | >1990 | >25 | 207-231 | 26-29 | <180 |
30UH | 1080-1130 | 10.8-11.3 | >812 | >10.2 | >1990 | >25 | 223-247 | 28-31 | <180 |
33UH | 1130-1170 | 11.3-11.7 | >852 | >10.7 | >1990 | >25 | 247-271 | 31-36 | <180 |
35UH | 1170-1220 | 11.8-12.2 | >860 | >10.8 | >1990 | >25 | 263-287 | 33-36 | <180 |
38UH | 1220-1250 | 12.2-12.5 | >876 | >11 | >1990 | >25 | 287-310 | 36-39 | <180 |
40UH | 1250-1280 | 12.5-12.8 | >899 | >11.3 | >1990 | >25 | 302-326 | 31-41 | <180 |
28EH | 1040-1090 | 10.4-10.9 | >780 | >9.8 | >2388 | >30 | 207-231 | 26-29 | <200 |
30EH | 1080-1130 | 10.8-11.3 | >812 | >10.2 | >2388 | >30 | 223-247 | 28-31 | <200 |
33EH | 1130-1170 | 11.3-11.7 | >836 | >10.5 | >2388 | >30 | 247-271 | 31-36 | <200 |
35EH | 1170-1220 | 11.7-12.2 | >876 | >11 | >2388 | >30 | 263-287 | 33-36 | <200 |
38EH | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >2388 | >30 | 287-310 | 36-39 | <200 |
28AH | 1040-1090 | 10.4-10.9 | >787 | >9.9 | >2642 | >33 | 207-231 | 26-29 | <230 |
30AH | 1080-1130 | 10.8-11.3 | >819 | >10.3 | >2642 | >33 | 223-247 | 28-31 | <230 |
38AH | 1130-1170 | 11.3-11.7 | >843 | >10.6 | >2642 | >33 | 247-271 | 31-34 | <230 |
Industrial Neodymium ring magnets are one of the most popular shapes of rare earth magnets. We supply a wide range of ring magnets in different sizes. Ring magnets have triple coating of nickel, copper and nickel again to prevent against corrosion.
Sintered NdFeB magnetic rings are often used in joinery and shop-fitting as they may be recessed and screwed into position. Although not as strong as Neodymium Discs, the hole in center of the ring magnet ensures great versatility. The higher permeance coefficient makes neodymium ring shape magnets ideal for many applications. This type of permanent magnet can be used in science projects or experiments, medical applications, cabinetry, water conditioning, loudspeakers and other commercial and industrial purposes.
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