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Sky Magnetech (Ningbo) Co., Ltd.
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China Ring Ndfeb Magnets/Ndfeb Ring Magnets/Permanent Magnets Ring
| Price: | 0.01~100.0 USD |
| Payment Terms: | T/T,L/C,WU;paypal |
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
Sky Magnetech has years' experience in producing magnets and we can produce magnets acccording to your own specifications or designs.
Nickel coated Ring Neodymium Magnets
Material: Ndfeb + other rare earth material
Grade: N35 to N52
Working Temperature: 80 deg to 200 deg
Surface Treatment Method: Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel,
Gold, Organic Epoxy, Nickel+Epoxy coating
Dimension: As your requiements
Tolerance:unless specified requirements, +/-0.1mm,+/-0.05mm
Orientation:The direction of magnetization depends on your applications.
Quantity:small order can be accepted
Payment:T/T or Paypal,Western union
Sintered NdFeB Magnet is one of the high performance rare earth permanent magnets, which use neodymium (ND), iron (Fe), and boron (B) as their main ingredients and is susceptible to demagnetization when exposed to elevated temperatures. There are many grades which can withstand high temperatures, but several factors will dictate the performance of the Neodymium magnet. There are also Sintered NdFeB, Sintered AlNiCo, Sintered SmCo and Sintered Ferrite.
Application for NdFeB magnet:
Magnetic separator, Sensors, Wind generators, Vibration motors, DC motors, Servo motors, Linear motors, VCM, MRI, Loudspeakers, Linear actuators, drives, toys, bags, household appliances, microphone parts, transmission equipments...
Remarks:
1, Sky Magnetech has years' experience in producing magnets and we can produce magnets acccording to your own specifications or designs.
2, We deliver goods in time and have excellent after-sale service.
3, Commited to customers with our best service and with the most that we can do for you.
4, Samples are always available here.
Welcome your inquiry,hope we can work with you.
| Magnetic properties of Sintered Neodymium Magnet (NdFeB magnet): | |||||
| Grade | Remanence | Coercive Force | Intrinsic Coercive Force | Max. energy product | Max. Operating Temperature |
| Br mT (kGs) | Hcb kA/m (kOe) | Hcj kA/m (kOe) | ( BH )max kJ/m 3 (MGOe) | Tw | |
| N35 | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 955 ( ≥ 12) | 263-287 (33-36) | 80 deg |
| N38 | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 955 ( ≥ 12) | 287-310 (36-39) | 80 deg |
| N40 | 1250-1280 (12.5-12.8) | ≥ 907 ( ≥ 11.4) | ≥ 955 ( ≥ 12) | 302-326 (38-41) | 80 deg |
| N42 | 1280-1320 (12.8-13.2) | ≥ 915 ( ≥ 11.5) | ≥ 955 ( ≥ 12) | 318-342 (40-43) | 80 deg |
| N45 | 1320-1380 (13.2-13.8) | ≥ 923 ( ≥ 11.6) | ≥ 955 ( ≥ 12) | 342-366 (43-46) | 80 deg |
| N48 | 1380-1420 (13.8-14.2) | ≥ 923 ( ≥ 11.6) | ≥ 876 ( ≥ 12) | 366-390 (46-49) | 80 deg |
| N50 | 1400-1450 (14.0-14.5) | ≥ 796 ( ≥ 10.0) | ≥ 876 ( ≥ 11) | 382-406 (48-51) | 60 deg |
| N52 | 1430-1480 (14.3-14.8) | ≥ 796 ( ≥ 10.0) | ≥ 876 ( ≥ 11) | 398-422 (50-53) | 60 deg |
| 30M | 1080-1130 (10.8-11.3) | ≥ 796 ( ≥ 10.0) | ≥ 1114 ( ≥ 14) | 223-247 (28-31) | 100 deg |
| 33M | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 1114 ( ≥ 14) | 247-263 (31-33) | 100 deg |
| 35M | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 1114 ( ≥ 14) | 263-287 (33-36) | 100 deg |
| 38M | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 1114 ( ≥ 14) | 287-310 (36-39) | 100 deg |
| 40M | 1250-1280 (12.5-12.8) | ≥ 923 ( ≥ 11.6) | ≥ 1114 ( ≥ 14) | 302-326 (38-41) | 100 deg |
| 42M | 1280-1320 (12.8-13.2) | ≥ 955 ( ≥ 12.0) | ≥ 1114 ( ≥ 14) | 318-342 (40-43) | 100 deg |
| 45M | 1320-1380 (13.2-13.8) | ≥ 995 ( ≥ 12.5) | ≥ 1114 ( ≥ 14) | 342-366 (43-46) | 100 deg |
| 48M | 1360-1430 (13.6-14.3) | ≥ 1027 ( ≥ 12.9) | ≥ 1114 ( ≥ 14) | 366-390 (46-49) | 100 deg |
| 50M | 1400-1450 (14.0-14.5) | ≥ 1033 ( ≥ 13.0) | ≥ 1114 ( ≥ 14) | 382-406 (48-51) | 100 deg |
| 30H | 1080-1130 (10.8-11.3) | ≥ 796 ( ≥ 10.0) | ≥ 1353 ( ≥ 17) | 223-247 (28-31) | 120 deg |
| 33H | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 1353 ( ≥ 17) | 247-271 (31-34) | 120 deg |
| 35H | 1170-1220 (11.7-12.2) | ≥ 868 ( ≥ 10.9) | ≥ 1353 ( ≥ 17) | 263-287 (33-36) | 120 deg |
| 38H | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 1353 ( ≥ 17) | 287-310 (36-39) | 120 deg |
| 40H | 1250-1280 (12.5-12.8) | ≥ 923 ( ≥ 11.6) | ≥ 1353 ( ≥ 17) | 302-326 (38-41) | 120 deg |
| 42H | 1280-1320 (12.8-13.2) | ≥ 955 ( ≥ 12.0) | ≥ 1353 ( ≥ 17) | 318-342 (40-43) | 120 deg |
| 45H | 1300-1360 (13-13.6) | ≥ 963 ( ≥ 12.1) | ≥ 1353 ( ≥ 17) | 326-358 (43-46) | 120 deg |
| 48H | 1370-1430 (13.7-14.3) | ≥ 995 ( ≥ 12.5) | ≥ 1353 ( ≥ 17) | 366-390 (46-49) | 120 deg |
| 30SH | 1080-1130 (10.8-11.3) | ≥ 804 ( ≥ 10.1) | ≥ 1592 ( ≥ 20) | 223-247 (28-31) | 150 deg |
| 33SH | 1130-1170 (11.3-11.7) | ≥ 844 ( ≥ 10.6) | ≥ 1592 ( ≥ 20) | 247-271 (31-34) | 150 deg |
| 35SH | 1170-1220 (11.7-12.2) | ≥ 876 ( ≥ 11.0) | ≥ 1592 ( ≥ 20) | 263-287 (33-36) | 150 deg |
| 38SH | 1220-1250 (12.2-12.5) | ≥ 907 ( ≥ 11.4) | ≥ 1592 ( ≥ 20) | 287-310 (36-39) | 150 deg |
| 40SH | 1240-1280 (12.5-12.8) | ≥ 939 ( ≥ 11.8) | ≥ 1592 ( ≥ 20) | 302-326 (38-41) | 150 deg |
| 42SH | 1280-1320 (12.8-13.2) | ≥ 987 ( ≥ 12.4) | ≥ 1592 ( ≥ 20) | 318-342 (40-43) | 150 deg |
| 45SH | 1320-1380 (13.2-13.8) | ≥ 1003 ( ≥ 12.6) | ≥ 1592 ( ≥ 20) | 342-366 (43-46) | 150 deg |
| 28UH | 1020-1080 (10.2-10.8) | ≥ 764 ( ≥ 9.6) | ≥ 1990 ( ≥ 25) | 207-231 (26-29) | 180 deg |
| 30UH | 1080-1130 (10.8-11.3) | ≥ 812 ( ≥ 10.2) | ≥ 1990 ( ≥ 25) | 223-247 (28-31) | 180 deg |
| 33UH | 1130-1170 (11.3-11.7) | ≥ 852 ( ≥ 10.7) | ≥ 1990 ( ≥ 25) | 247-271 (31-34) | 180 deg |
| 35UH | 1180-1220 (11.8-12.2) | ≥ 860 ( ≥ 10.8) | ≥ 1990 ( ≥ 25) | 263-287 (33-36) | 180 deg |
| 38UH | 1220-1250 (12.2-12.5) | ≥ 876 ( ≥ 11.0) | ≥ 1990 ( ≥ 25) | 287-310 (36-39) | 180 deg |
| 40UH | 1240-1280 (12.5-12.8) | ≥ 899 ( ≥ 11.3) | ≥ 1990 ( ≥ 25) | 302-326 (38-41) | 180 deg |
| 28EH | 1040-1090 (10.4-10.9) | ≥ 780 ( ≥ 9.8) | ≥ 2388 ( ≥ 30) | 207-231 (26-29) | 200 deg |
| 30EH | 1080-1130 (10.8-11.3) | ≥ 812 ( ≥ 10.2) | ≥ 2388 ( ≥ 30) | 223-247 (28-31) | 200 deg |
| 33EH | 1130-1170 (11.3-11.7) | ≥ 836 ( ≥ 10.5) | ≥ 2388 ( ≥ 30) | 247-271 (31-34) | 200 deg |
| 35EH | 1170-1220 (11.7-12.2) | ≥ 876 ( ≥ 11.0) | ≥ 2388 ( ≥ 30) | 263-287 (33-36) | 200 deg |
| 38EH | 1220-1250 (12.2-12.5) | ≥ 899 ( ≥ 11.3) | ≥ 2388 ( ≥ 30) | 287-310 (36-39) | 200 deg |
| 30AH | 1080-1120 (10.8-11.2) | ≥ 812 ( ≥ 10.2) | ≥ 2785 ( ≥ 35) | 223-255 (28-32) | 220 deg |
| 33AH | 1120-1170 (11.2-11.7) | ≥ 812 ( ≥ 10.2) | ≥ 2785 ( ≥ 35) | 247-271 (31-34) | 220 deg |
| Physical and Mechanical Properties of Neodymium Magnet: | |||||
| Thermal Conductivity | 7.7 kcal/m-h-° C | ||||
| Young' s Modulus | 1.7 x 104 kg/mm2 | ||||
| Bending Strength | 24 kg/mm2 | ||||
| Compressive Strength | 80 kg/mm2 | ||||
| Electrical Resistivity | 160 µ -ohm-cm/cm2 | ||||
| Density | 7.4-7.55 g/cm3 | ||||
| Vickers Hardness | 500 - 600 | ||||
| Available coatings for sintered Neodymium Magnet (NdFeB magnet): | |||||
| Available Coatings: | |||||
| Surface | Coating | Thickness (Microns) | Color | Resistance | |
| Passivation | 1 | Silver Grey | Temporary Protection | ||
| Nickel | Ni+Ni | 10.0-20 | Bright Silver | Excellent against Humidity | |
| Ni+Cu+Ni | |||||
| Zinc | Zn | 8.0-20 | Bright Blue | Good Against Salt Spray | |
| C-Zn | Shinny Color | Excellent Against Salt Spray | |||
| Tin | Ni+Cu+Sn | 15-20 | Silver | Superior Against Humidity | |
| Gold | Ni+Cu+Au | 10.0-20 | Gold | Superior Against Humidity | |
| Copper | Ni+Cu | 10.0-20 | Gold | Temporary Protection | |
| Epoxy | Epoxy | 15-25 | Black, Red, Grey | Excellent Against Humidity & Salt Spray | |
| Ni+Cu+Epoxy | |||||
| Zn+Epoxy | |||||
| Chemical | Ni | 10.0-20 | Silver Grey | Excellent Against Humidity | |
| Parylene | Parylene | 5.0-20 | Grey | Excellent Against Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and Bacteria. FDA Approved. | |
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Company Info
Sky Magnetech (Ningbo) Co., Ltd. [China (Mainland)]
Business Type:Manufacturer
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)
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