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Countersunk Ferrite Flat Cup Magnets



Countersunk ferrite flat cup/pot magnets are the most widely used ferrite magnetic assemblies. Because ferrite(ceramic) magnets are cheap, ferrite countersunk pot(cup) magnets are used when not need too strong a magnetic force. Besides provide demanded magnetic force at low cost, countersunk pot magnets of ferrite(ceramic) have excellent corrosion resistance and can withstand temperatures up to 250 degrees. Due to these advantages, ferrite(ceramic) countersunk pot magnets are widely used.


With the design of a countersunk mounting hole, ferrite countersunk pot magnets can be fixed with a taper threaded screw. And known as ferrite mountable magnets and screwed-on magnets.


Commonly available surface finishing of ferrite countersunk pot magnets are galvanized(Zinc-coating), Nickel-coating, and spray plastic.


For demands of super-strong magnetic force, just choose our countersunk neodymium pot magnets.





Summary of ferrite countersunk pot magnets:


Component and Material: countersunk ring ceramic magnets + A3 steel cup + ABS plastic ring or epoxy glue

Available Surface Treatment: Nickel , Zinc, spray colorful plastic 

Standard Size:  diameter-- 16mm, 20mm, 25mm, 32mm,40mm,50mm,63mm....

Magnetic Grade:Y30BH

Working Temp.:  -40 to 250℃(for standard ones), the pot magnets for higher working temperature can be customized


Size specification of common countersunk ferrite flat pot magnets:

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Items CodeD(mm)H(mm)d1(mm)d2(mm)Force(N)Weight(g)
Ferrite-A1616(+0.1/-0.1)4.5(+0.2/-0.1)3.5(+0.2/-0.2)6.5(+1.5/0)144
Ferrite-A2020(+0.1/-0.1)6(+0.2/-0.1)4.1(+0.4/-0.4)9.4(+1/0)279
Ferrite-A2525(+0.1/-0.1)7(+0.3/-0.2)5.5(+0.2/-0.2)11.5(+1/0)3617
Ferrite-A3232(+0.1/-0.1)7(+0.3/-0.2)5.5(+0.25/-0.25)11.5(+1/0)7227
Ferrite-A4040(+0.1/-0.1)8(+0.4/-0.2)5.5(+0.2/-0.2)11.5(+1/0)9052
Ferrite-A5050(+0.1/-0.1)10(+0.4/-0.2)6.5(+0.2/-0.2)12(+1/0)16290
Ferrite-A6363(+0.1/-0.1)14(+0.4/-0.2)6.5(+0.2/-0.2)12(+1/0)261195




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