NdFeB Block Magnet
Product Description
Feature:
NdFeB block magnets combine high magnetic strength with a practical geometric form. Their rectangular shape provides a larger surface area, which increases their holding force. They are highly resistant to demagnetization and perform well under standard operating temperatures.
Why choose Sintered Neodymium Block Magnet
● Large contact area: Block magnets provide strong adhesive force due to their broad surface, ideal for mounting and structural support.
● Highly customizable: Available in a variety of lengths, widths, and thicknesses to fit unique application requirements.
● Easy integration: Their flat surfaces make them simple to bond or insert into housings and assemblies.
● Durable and corrosion-resistant: Protective coatings such as nickel, zinc, or epoxy extend their lifespan.
● Reliable performance: Stable magnetic field output even in demanding environments.
Application:
NdFeB block magnets are widely used in industrial equipment, electric motors, magnetic couplings, magnetic chucks, and energy-efficient devices. As industries strive to reduce energy usage and carbon emissions, block magnets play an increasingly important role in driving innovation across sectors such as automation, transportation, and renewable energy.
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) | √ | √ |