Help with electric motor power calculations

[gotoluc]

That does look better Mike!... but I'm also not good at charts and documents. Do you think you could find the highest performing solenoid and just give me a number for the pull force and how many watts it's using to do that?

That would be the great help that I looking for.

Thanks for your time and offer to help

Luc

[mikestocks2006]

That does look better Mike!... but I'm also not good at charts and documents. Do you think you could find the highest performing solenoid and just give me a number for the pull force and how many watts it's using to do that?

That would be the great help that I looking for.

Thanks for your time and offer to help

Luc

Hi Luc,
Once you find the charts, they are not that difficult to read, but also the resulting numbers are approximations. The charts usually plot force vs power and a number of curves for the travel.
The permanent magnet ones seem to be the higher ratio f/w ones.
Some of the numbers as depicted are about 43 grams/watt for less than a mm (0.5 mm) to 10 grams/watt for 5 mm travel.
This should give you some basic reference to work/compare from.
I hope this helps
Mike

[gotoluc]

Thanks Mike,  this is the most helpful information I have received yet!

My design can pulls more than 43 grams per watt and can keep pulling at the same rate for more than a 20mm

If anyone else finds a better score please post it.

Maybe I should contact a solenoid company. Anyone know who make the most powerful ones on the market?

Thanks for your time

Luc

[gotoluc]

Hi everyone,

I decided to make a video update as I have recently found a better position for the magnets which takes full advantage of each magnet pole and basically double the pulling power when the outside cores are added.

The video should be self explanatory

http://youtu.be/-eTQ49RcFKM

Luc