[Isaac]

Hi there!

I was just wondering if the people know of have alternative sources (particularly US-based sources) for 5×15 mm, diametrically magnetized, NdFeB rod magnets? I’m hoping to make some racks but don’t know for sure if magnetkontor.de will be able to promptly ship to Chicago given the current pandemic and the US government’s various lockdowns.

I have been able to find potential alternatives in slightly different dimensions–for instance, 3×13 mm diametrically magnetized N45 rods (https://www.umagnets.com/p/10pcs-3mm-x-13mm-n45-diametrically-magnetized-strong-cylinder-magnet-rare-earth-neodymium-rod-magnets-disk-radial-magnets-sale/), 6×20 mm diametrically magnetized N38 rods (https://www.umagnets.com/p/6mm-x-20mm-n38-diametrically-magnetized-strong-cylinder-magnet-rare-earth-neodymium-rod-magnets-disk-radial-magnets-sale/), and 5×33 mm diametrically magnetized N35 rods (https://www.umagnets.com/p/10pcs-5mm-x-33mm-n35-diametrically-magnetized-strong-cylinder-magnet-rare-earth-neodymium-rod-magnets-heavy-duty-radial-magnets-sale/). Would the N35 33 mm rods work, or will they be too long/too weak? Would the thicker or thinner alternatives work with minor edits to the rack’s .stl file? Where do you recommend I source my magnets in the US?

Thanks for any time and help!

[Phil Oberacker]

Hey Isaac,

as we’re all based in Europe and New Zealand, we never checked for US suppliers, sorry. It is hard to say without trying though, if these alternative magnets work. However, the crucial point is the grade of the magnet, as one can always adjust the .stl file for smaller ones. I just fear that smaller magnets might be to far away from the well to attract the beads efficiently. But that’s what one would need to try out, maybe with a higher grade. I would definitely not try weaker magnets than the ones we used (N45) though.

Cheers

[Author]

Posts