Neodymium-Iron-Boron (
NdFeB)
magnet is the most powerful and advanced commercialized
permanent magnets now.
Sphere Magnets and
Ball magnets are one popular shape of
Rare earth magnets and
permanent magnets.
It is always manufactured via grinding, etc .
Sphere magnets or
ball magnets have the following important factors such as, Diameter etc.
Our company produce and manufacture
magnets according tocustomer's design on shape, dimension, grades, coatings etc.
To offer you our Sphere or Ball
magnets price, please offer the following details :
1.
Magnets grade: from N35 To N50, from N Series to UH Series.
2.
Magnets size: 3mm to 50mm for diameter can be available.
3.
Magnetism direction: Always magnetized via diameter direction.
4.
Magnets coating: Nickel, Zinc, Black
Epoxy, Ag, Au Etc.
Also,we can drill hole on the ball....
Magnetic balls are widely used to toys, decoration, therapy, electrical parts, necklace, bracelet, health products, 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 | ≥ 2388 | 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. |