Countersunk Ø40.0 mm N38 Zinc (Zn) Neodymium Magnet

Applications of Cheap Strong NdFeB Countersunk  Magnet:
loudspeakers,motor assemblies,windmill,Home appliance,acousics,communication equipment,toy,car,servomotor,step motor,DC motor and linear motor,mircrophones
Outsandings of  Cheap Strong NdFeB Countersunk  Magnet:
1) low weight loss
2) high working temperature:the AH series with 40 k Oe super-high coervice force can replace SmCo magnets successfully.
3) high consistency:the cpk of Br and Hcj are much higher than 1.67 the consisitency of surface magnetic field and magnetic flux can be controlled with +/-1%
4) High Anti-corrosion:the sale spray test and humid heat test of the high anti-corrosion coating could be more than 1000 hours
PCT:130c ,humidity 100%,vapor pressure 2.7 bar.20 days,average low weight loss less than 2 mg/cm2
Sintered Neodym Magnet
Disc:Max:diameter 202mm*45mm thickness---Min:diameter 1.5mm*0.5mm thickness
Ring:Max:Od202mm*Id182mm*thickness 45mm---Min:Od 3mm*Id1mm*3mm thickness
Block:Max:L200mm*W200mm*T45mm---Min:L0.5mm*W0.5mm*T0.5mm
segment and other irregular shapes can be manufacture according to customer's sample or drawing.
Sintered Neodym Magnet grade
N35, N38, N40, N42, N45, N48, N50, N52(Max. Operational temperature: 80c)
N35M, N38M, N40M, N42M, N45M, N48M(Max. Operational temperature: 100c)
N35H, N38H, N40H, N42H, N45H, N48H, (Max. Operational temperature: 120C)
N33SH, N35SH, N38SH, N40SH, N42SH(Max. Operational temperature: 150c)
N28UH, N30UH, N33UH, N35UH, N38UH(Max. Operational temperature: Up to 180c)
N28EH, N30EH, N33EH, N35EH(Max. Operational temperature: Up to 200c)
N30AH, N33AH, N35AH(Max. Operational temperature: Up to 230c)
Pros: Very strong hold when contacting another magnet or plain iron, very difficult to pull away (easy to slide however).
Pretty strong hold between two of these even with a couple of mm in between.
Cons: Would like thicker (and more powerful) versions. Sure u can stack these together but sometimes it's not the same thing.
Other Thoughts: Good for attaching thick stacks of paper to refrigerators etc or pinching together papers or textiles.
Bottomline: This is the one if you need strong cost-effective magnets