The Mark I Magnaprobe can respond to as little as 0.3 gauss & will detect weaknesses in magnetic shielding. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.
| Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet |
| SKU: 44209-5 Size: 25 × 5mm |
| Distance (mm): |
| Gauss |
2451.2 |
2440.5 |
2329.7 |
947.3 |
4.7 |
| Lb |
22.77 |
22.57 |
20.57 |
3.40 |
0.00 |
| Kg |
10.35 |
10.26 |
9.35 |
1.55 |
0.00 |
Specifications for Fully Sintered/Pressed Neodymium Magnets, N42 Grade
| RemanentFlux Density (Br) |
13,000G; 1300mT |
| Coercivity (bHc) |
12.0 Oe; 955 A/m |
| Intrinsic Coercivity (jHc) |
17.0 Oe; 1353 A/m |
| Max.Energy Product (BHMax) |
42 MGO; 334 kJ/m3 |
| Curie Temperature (Tc) |
310oC |
| Working Temperature (Tw) |
80oC |
| Temp.Coefficient (αB)r |
-0.12%/Co |
Tolerances - Sintered Rare Earth Magnets
| |
Dimensions |
Tolerances |
|
Size:
Unfinished Surfaces:
Dimensions perpendicular to pressing (die formed)
|
Inches |
mm |
Inches |
mm |
| 0 to 0.125 |
0 to 3 |
+/- 0.006 |
+/- 0.15 |
| 0.126 to 0.625 |
3 to 16 |
+/- 0.012 |
+/- 0.30 |
| 0.626 to 0.875 |
16 to 22 |
+/- 0.018 |
+/- 0.45 |
| 0.876 and Up |
22 and Up |
+/- 2.5% |
+/- 2.5% |
American (Imperial)/Metric Conversion Table
| 1/32" |
0.031 |
0.8 |
1 |
| 3/32" |
0.094 |
2.4 |
2.5 |
| 5/32" |
0.156 |
4.0 |
4 |
| 1/16" |
0.063 |
1.6 |
1.5 |
| 3/16" |
0.188 |
4.8 |
5 |
| 2/10" |
0.200 |
5.1 |
5 |
| 1/8" |
0.125 |
3.2 |
3.75 |
| 1/4" |
0.250 |
6.4 |
7.5 |
| 5/16" |
0.313 |
7.9 |
7.5 |
| 3/8" |
0.375 |
9.5 |
10 |
| 13/32" |
0.406 |
10.3 |
10 |
| 1/2" |
0.500 |
12.7 |
12.5 |
| 9/16" |
0.563 |
14.3 |
15 |
| 5/8" |
0.625 |
15.9 |
15 |
| 11/16" |
0.688 |
17.5 |
17.5 |
| 3/4" |
0.750 |
19.1 |
20 |
| 13/16" |
0.813 |
20.6 |
20 |
| 7/8" |
0.875 |
22.2 |
22.5 |
| 15/16" |
0.938 |
23.8 |
25 |
Here's what 3 happy customers said about us on our Google Page:
...I purchased N42 Neodymium magnets, they are the real deal. I had previously bought magnets on Amazon that were advertised as N52, they were just another cheap Chinese fake. These folks sell authentic, high quality stuff and get it to you fast....Read more of what
Tracy Myerson had to say.
I've dealt with Indigo Instruments for years now....Most recently I sent them a hand-drawn sketch of my interpretation of something I saw on YouTube and wanted recommendations on what magnets to use. Chris called me up, discussed the project and made some recommendations. His recommendation was bang on....Read more of what
Ian Kelly had to say.
Been doing business with Indigo for many years. Their Neodymium magnets are superb in quality and price....Read more of what
Peter Maran had to say.
Sturdy, Strong magnets. Could not ask for better grade magnets. Top Notch.
— ScienceStores
Great product and fast shipping! I will be ordering these again!
— Kelly
