Outer diameter: 28mm +0.1/- 0.1 mm
Internal diameter: 13mm +0.1/- 0.1 mm
Height: 7mm +0.1/- 0.1 mm
Magnetisation: N42
Magnetization direction: 7mm per thickness
Coating: Nickel-plated (Ni-Cu-Ni)
Weight: 25 g
Traction: ~16kg

Properties of magnetic material N42: remanencja Br 1.28-1.32 [T] Coercja HCB min. 899 [kA / m], Coercja HcJ min. 955 [kA / m], energy product (BH) max 318-334 [kJ/m3]
Physical Properties: Density ~ 7.5 [g/cm3], Vickers (HV) ~ 600 [kg/mm2], Resistivity ~ 144 [uOhm x]
The maximum operating temperature is 80 ° [C].
Curing temperature is ~ 310 ° [C].
Magnetic flux: ~ 35.400 x 10-3 [mWb], K (Helmholtz coil constant) = 1.14 × 10-4 [m]
Magnetic moment: ~ 35.400 x 10-3 [mWb] × 1.14 × 10-4 [m] = ~ 4035.60 x 10-6 [mWb] × [m]
Magnetic flux density 0.7 [mm] The distance from the magnetic surface is ~ 0.371 [T]
Strength: ~ 16 [kg].
Tests were performed at room temperature.

Safety notice
NdFeB magnets are hard and brittle. Especially with the thinner, narrower dimensions/due to the higher grip strength, they can easily break or split! Therefore, the impact of the two magnets, as well as external, mechanical impact or pressure load, should be avoided! A safe distance between magnets is 30-50 cm. When turning the magnet with wood screws, it is very important not to overtighten.