Hello guys,
I am searching for a special Electromagnet (reasonable priced) for my project. I want to replace a permanent magnet which opens a valve by attracting a stainless steel cylinder (with a small magnet inside to better attract) if the magnet is moved into position by pressing a button. Instead I wanted to install an electromagnet which operates via an Arduino. But it would be best if I don't need to open the valve-body so i don't compromise the sealing and functionality.
I measured the holding force of the permanent magnet to approximately 12N. The maximum force needed to compress the spring is ca. 2,5N.
Below i have a rough sketch of how it (should) look like and how i want it to function.
I have already tried some things i had at home/where easy to get:
1) a replacement-magnet for a solenoid valve like seen here: Solenoid-Valve
Problem: the point where the magnetic force is strongest i too far from the cylinder to attract it.
2) a holding magnet in which i drilled a hole: holding-magnet
Problem: the magnetic field is really shallow and can not attract the cylinder. Plus in the middle, the magnetic force is the lowest and by drilling it i lowered it more.
My further ideas where to get a magnet with a lower height so the point of the maximum magnetic force is closer to the cylinder. But I struggle to find one of those and I am not sure it will even work with it.
If anyone of you could help me with this i would be very thankful.
Thanks
I am searching for a special Electromagnet (reasonable priced) for my project. I want to replace a permanent magnet which opens a valve by attracting a stainless steel cylinder (with a small magnet inside to better attract) if the magnet is moved into position by pressing a button. Instead I wanted to install an electromagnet which operates via an Arduino. But it would be best if I don't need to open the valve-body so i don't compromise the sealing and functionality.
I measured the holding force of the permanent magnet to approximately 12N. The maximum force needed to compress the spring is ca. 2,5N.
Below i have a rough sketch of how it (should) look like and how i want it to function.
I have already tried some things i had at home/where easy to get:
1) a replacement-magnet for a solenoid valve like seen here: Solenoid-Valve
Problem: the point where the magnetic force is strongest i too far from the cylinder to attract it.
2) a holding magnet in which i drilled a hole: holding-magnet
Problem: the magnetic field is really shallow and can not attract the cylinder. Plus in the middle, the magnetic force is the lowest and by drilling it i lowered it more.
My further ideas where to get a magnet with a lower height so the point of the maximum magnetic force is closer to the cylinder. But I struggle to find one of those and I am not sure it will even work with it.
If anyone of you could help me with this i would be very thankful.
Thanks