GTN-20

Pot magnet with threaded stem

Ø 20 mm, Thread M4, strength approx. 12 kg
promptly deliverable

Description

These pot magnets have a stem with an external screw thread. You can slide the stem, for instance, through a hole and fasten it with a nut.
Read about more features and tips

Technical data

Article ID GTN-20
EAN 7640155432610
Material NdFeB
Pot diameter D 20 mm
Pot height H1 7 mm
Total height H2 15,5 mm
Thread M M4
Tolerance +/- 0,1 mm
Coating Nickel-plated (Ni)
Steel Q235 (China)
Magnetisation N42
Strength approx. 12 kg (approx. 118 N)
Max. working temperature 80°C
Turned down portion 0.0 - 0.7 mm
Weight 15 g
PDF data sheet

Additional features and tips


Click to enlarge
The steel pot increases the adhesive force of the embedded disc magnet sixfold. The counter pole on the back is "redirected" to the front by the steel pot, so the circular contact surface of the steel pot is actually the magnetic counter pole to the disc magnet. This magnetic "short circuit", without air between the two poles, increases the adhesive force substantially.

Click to enlarge
This elevated adhesive force can only be reached through a direct contact with the counterpart. Even a small distance of a few millimetres will cause the magnetic attraction to cease.
The answer to why you can arrange pot magnets only side by side can be found under our FAQ.
In 2011 the city of Zurich offered an interesting tour through the waste cogeneration plant "Hagenholz" in the trendy fifth district. To start off, the visitors met at a so-called "rendezvous cube".
Nine super-magnetic GTN-20 hold together a cube wall - flexible and sturdy.

Customer applications that use this product