MagMike:
I will go for low carbon steel, thank for the info.
At the moment though i will try to modify my "flat surface holding magnet" into a single core with backplate electromagnet (removing the surrounding "cup"). This is just a test to see how much further the field will reach out.
the...
to MagMike:
You ment to use permanent magnets just to see if it works (or to convert the strength of those to what i need in an electromagnet)? Are permanent magnets "stronger" (size to force) than electromagnets by the way?
regards
andersp
Thank you fror your answers, and of cource exuse me for beeing unspecific. The first question is seldom the most formulated one.....
Yes, electromagnet.
Needed fieldstrength, no idea so far (though a very small flat circular permanent magnet D 9mm* t 1mm, probably neodym, had quite good effect...
Quick answer MagMike ;)
Yes, i got myself a cylindrical holding magnet with diameter 25mm and heiht 20mm, 12V DC 4W (farnell inone catalogue), should hold 140N or similar.
It has not nearly the effect i wanted.(slightley better when using 30V, but then it gets hot quite quick....)
Since this...
HI!
I really would appriciate some help on a project i am workng with!
I need a magnetic field as strong as possible in a limited space/weight. From a e.g. circular surface (approx 25-30mm in diameter) i need a protruding magnetic field. On this surface i will placce a "pillow" with...
