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Feature:
NdFeB segment magnets offer strong magnetic performance combined with a geometry that matches curved surfaces. Their arc shape allows for even magnetic flux distribution in rotating systems. They are highly resistant to demagnetization and can be customized for different operating temperatures and magnetic orientations.
Why choose Sintered Neodymium Segment Magnet
Optimized for rotation: The arc design fits perfectly into motor and generator rotors to provide smooth and efficient rotation.
Uniform magnetic field: When assembled into a ring, segment magnets deliver a consistent radial magnetic field.
Flexible customization: Available in various arc lengths, radii, thicknesses, and magnetization directions to suit different applications.
High magnetic strength: Made from high-grade NdFeB materials such as N35 to N52 for maximum energy output.
Corrosion protection: Coated with nickel, zinc, or epoxy to ensure durability in challenging environments.
Application:
NdFeB segment magnets are widely used in high-performance electric motors, wind turbine generators, magnetic pumps, and synchronous motors. Their precise arc geometry and strong magnetic properties help improve energy efficiency, reduce mechanical wear, and enable compact designs in modern electromechanical systems. They are essential components in automotive powertrains, renewable energy systems, and industrial automation.
Physical Characteristics：
| Material grade | Remanence Br (T/kG) | Coercivity Hcb (kOe/kA/m) | Intrinsic Coercivity Hcj (kOe/kA/m) | Maximum Energy Product (MGOe/kJ/m³) | Dy | Tb | Remarks |
| KN35 | ≥1.18(11.8) | ≥10.8(860) | ≥12(955) | 33～36(263～287) | √ | × | Scrap Inclusion |
| KN38 | ≥1.23(12.3) | ≥10.8(860) | ≥12(955) | 36～39(287～310) | √ | × | Scrap Inclusion |
| KN40 | ≥1.26(12.6) | ≥11.0(876) | ≥12(955) | 38～41(302～326) | √ | × | Scrap Inclusion |
| KN42 | ≥1.29(12.9) | ≥11.0(876) | ≥12(955) | 40～43(318～342) | √ | × | Scrap Inclusion |
| KN45 | ≥1.33(13.3) | ≥11.0(876) | ≥12(955) | 43～46(342～366) | × | × | |
| KN48 | ≥1.37(13.7) | ≥10.8(860) | ≥12(955) | 46～49(366～390) | × | × | |
| KN50 | ≥1.39(13.9) | ≥10.5(836) | ≥12(955) | 47～51(374～406) | × | × | |
| KN52 | ≥1.42(14.2) | ≥10.0(796) | ≥11(876) | 49～53(390～422) | × | × | |
| KN55 | ≥1.46(14.6) | ≥9.0(716) | ≥11(876) | 52～56(414～446) | × | × | |
| KN35M | ≥1.18(11.8) | ≥10.8(860) | ≥14(1114) | 33～36(263～287) | √ | × | Scrap Inclusion |
| KN38M | ≥1.23(12.3) | ≥11.0(876) | ≥14(1114) | 36～39(287～310) | √ | × | Scrap Inclusion |
| KN40M | ≥1.26(12.6) | ≥11.4(910) | ≥14(1114) | 38～41(302～326) | √ | × | Scrap Inclusion |
| KN42M | ≥1.29(12.9) | ≥11.8(939) | ≥14(1114) | 40～43(318～342) | √ | × | Scrap Inclusion |
| KN45M | ≥1.33(13.3) | ≥11.8(939) | ≥14(1114) | 43～46(342～366) | √ | × | Scrap Inclusion |
| KN48M | ≥1.37(13.7) | ≥11.8(939) | ≥14(1114) | 46～49(366～390) | × | × | |
| KN50M | ≥1.39(13.9) | ≥11.5(915) | ≥14(1114) | 47～51(374～406) | × | × | |
| KN52M | ≥1.42(14.2) | ≥10.8(860) | ≥13(1035) | 49～53(390～422) | × | × | |
| KN54M | ≥1.46(14.6) | ≥10.8(860) | ≥13(1035) | 52～56(414～446) | × | × | |
| KN35H | ≥1.18(11.8) | ≥10.8(860) | ≥17(1353) | 33～36(263～287) | √ | × | |
| KN38H | ≥1.23(12.3) | ≥11.0(876) | ≥17(1353) | 36～39(287～310) | √ | × | |
| KN40H | ≥1.26(12.6) | ≥11.4(910) | ≥17(1353) | 38～41(302～326) | √ | × | |
| KN42H | ≥1.29(12.9) | ≥11.8(939) | ≥17(1353) | 40～43(318～342) | √ | × | |
| KN45H | ≥1.33(13.3) | ≥11.8(939) | ≥17(1353) | 43～46(342～366) | √ | × | |
| KN48H | ≥1.37(13.7) | ≥11.8(939) | ≥17(1353) | 46～49(366～390) | √ | × | |
| KN50H | ≥1.39(13.9) | ≥11.5(915) | ≥16(1274) | 47～51(374～406) | √ | × | |
| KN52H | ≥1.42(14.2) | ≥10.8(860) | ≥16(1274) | 49～53(390～422) | √ | × | |
| KN54H | ≥1.46(14.6) | ≥10.8(860) | ≥16(1274) | 52～56(414～446) | √ | √ | |
| KN30SH | ≥1.08(10.8) | ≥10.0(796) | ≥20(1592) | 28～31(223～247) | × | × | |
| KN33SH | ≥1.14(11.4) | ≥10.5(836) | ≥20(1592) | 31～34(247～271) | × | × | |
| KN35SH | ≥1.18(11.8) | ≥10.8(860) | ≥20(1592) | 33～36(263～287) | √ | × | |
| KN38SH | ≥1.23(12.3) | ≥11.0(876) | ≥20(1592) | 36～39(287～310) | √ | × | |
| KN40SH | ≥1.26(12.6) | ≥11.4(910) | ≥20(1592) | 38～41(302～326) | √ | × | |
| KN42SH | ≥1.29(12.9) | ≥11.8(939) | ≥20(1592) | 40～43(318～342) | √ | × | |
| KN45SH | ≥1.33(13.3) | ≥11.8(939) | ≥20(1592) | 43～46(342～366) | √ | × | |
| KN48SH | ≥1.37(13.7) | ≥11.8(939) | ≥19(1512) | 46～49(366～390) | √ | × | |
| KN50SH | ≥1.39(13.9) | ≥11.5(915) | ≥19(1512) | 47～51(374～406) | × | √ | |
| KN52SH | ≥1.42(14.2) | ≥10.8(860) | ≥19(1512) | 49～53(390～422) | × | √ | |
| KN54SH | ≥1.46(14.6) | ≥10.8(860) | ≥19(1512) | 52～56(414～446) | × | √ | |
| KN30UH | ≥1.08(10.8) | ≥10.0(796) | ≥25(1990) | 28～31(223～247) | √ | × | |
| KN33UH | ≥1.14(11.4) | ≥10.5(836) | ≥25(1990) | 31～34(247～271) | √ | × | |
| KN35UH | ≥1.18(11.8) | ≥10.8(860) | ≥25(1990) | 33～36(263～287) | √ | × | |
| KN38UH | ≥1.23(12.3) | ≥11.0(876) | ≥25(1990) | 36～39(287～310) | √ | × | |
| KN40UH | ≥1.26(12.6) | ≥11.4(910) | ≥25(1990) | 38～41(302～326) | √ | × | |
| KN42UH | ≥1.29(12.9) | ≥11.8(939) | ≥25(1990) | 40～43(318～342) | √ | × | |
| KN45UH | ≥1.33(13.3) | ≥11.8(939) | ≥24(1910) | 43～46(342～366) | √ | √ | |
| KN48UH | ≥1.37(13.7) | ≥11.8(939) | ≥24(1910) | 46～49(366～390) | √ | √ | |
| KN50UH | ≥1.39(13.9) | ≥11.5(915) | ≥24(1910) | 47～51(374～406) | √ | √ | |
| KN52UH | ≥1.42(14.2) | ≥10.8(860) | ≥24(1910) | 49～53(390～422) | √ | √ | |
| KN30EH | ≥1.08(10.8) | ≥10.0(796) | ≥30(2388) | 28～31(223～247) | √ | √ | |
| KN33EH | ≥1.13(11.3) | ≥10.5(836) | ≥30(2388) | 31～34(247～271) | √ | √ | |
| KN35EH | ≥1.17(11.7) | ≥10.8(860) | ≥30(2388) | 33～36(263～287) | √ | √ | |
| KN38EH | ≥1.22(12.2) | ≥11.0(876) | ≥30(2388) | 36～39(287～310) | √ | √ | |
| KN40EH | ≥1.25(12.5) | ≥11.0(876) | ≥29(2308) | 38～41(302～326) | √ | √ | |
| KN42EH | ≥1.28(12.8) | ≥10.0(796) | ≥29(2308) | 40～43(318～342) | √ | √ | |
| KN45EH | ≥1.33(13.3) | ≥11.8(939) | ≥29(2308) | 43～46(342～366) | √ | √ | |
| KN48EH | ≥1.37(13.7) | ≥11.8(939) | ≥29(2308) | 46～49(366～390) | √ | √ | |
| KN30TH | ≥1.08(10.8) | ≥10.0(796) | ≥35(2786) | 28～31(223～247) | √ | √ | |
| KN33TH | ≥1.13(11.3) | ≥10.5(836) | ≥35(2786) | 31～34(247～271) | √ | √ | |
| KN35TH | ≥1.17(11.7) | ≥10.8(860) | ≥35(2786) | 33～36(263～287) | √ | √ | |
| KN38TH | ≥1.22(12.2) | ≥11.0(876) | ≥34(2706) | 35～39(279～310) | √ | √ | |
| KN40TH | ≥1.25(12.5) | ≥10.5(836) | ≥34(2706) | 38～41(302～326) | √ | √ | |
| KN42TH | ≥1.28(12.8) | ≥10.0(796) | ≥34(2706) | 40～43(318～342) | √ | √ |
