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Memo Magnet With Steel Cup

1. Type: Office magnet / Memo magnet
2. Material: Neodymium magnet + Steel cup
3. Shape: Round

4. Dimensions: D16,D22,D25,D30 mm

5. Grade of Magnet: N40

6. Surface Treatment: Nickel + Steel covered

7. Magnetized: Axial Magnetized

8. Max working Temp.: -40℃ to 80℃

  • Product Detail
  • Technical Specifications
Available dimensions of memo magnet with steel cup


Model D(mm) d(mm) H(mm) h(mm) Wieght(g)
Hold A4
on white board
D16 16 13.2 7.2 3.2 9 11 pieces
D22 22 18 9 3 21 13 pieces
D25 25 21 9 3 27 15 pieces
D30 30 27 9 3 43 17 pieces
Magnetic Properties Of Sintered Neodymium Magnet
Series Grade Max Operating Temp.   
Remanence Br
mT(KG)
Coercivity Hcb
KA/m(KOe)
Intrinsic Coercivity Hcj
KA/m(KOe) 
Maximium Energy Product
 (BH)max  KJ/m3 (MGOe) 
N Series N35 80 1170-1220
(11.7-12.2)
≥868≥10.9 ≥955≥12 263-287(33-36)
N38 80 1220-1250
(12.2-12.5)
≥899≥11.3 ≥955≥12 287-310(36-39)
N40 80 1250-1280
(12.5-12.8)
≥907≥11.4 ≥955≥12 302-326(38-41)
N42 80 1280-1320
(12.8-13.2)
≥915≥11.5 ≥955≥12 318-342(40-43)
N45 80 1320-1380
(13.2-13.8)
≥923≥11.6 ≥955≥12 342-366(43-46)
N48 80 1380-1420
(13.8-14.2)
≥923≥11.6 ≥955≥12 366-390(46-49)
N50 60 1400-1450
(14.0-14.5)
≥796≥10.0 ≥876≥11 382-406(48-51)
N52 60 1430-1480
(14.3-14.8)
≥796≥10.0 ≥876≥11 398-422(50-53)
N55 60 1470-1520
(14.7-15.2)
≥796≥10.0 ≥876≥11 414-438(52-56)

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