+strongest electromagnet for carrying the most possible weight?
+strongest electromagnet for carrying the most possible weight?
(OP)
I was searching the net and i found very interesting info of what stuff influence on the strength of the electromagnet:
- number of turns of the wire
- electrical current
- material of the core
I have to make it whit an specific wire: 20mts caliber 22
I was wondering if the shape of the electromagnet influence in the force because i found diferent types: shape 'I', shape 'C', shape 'E', shape 'U'
what would be the best for my particular purpose??
And the size of the core?? what should I use?? shorter and thicker, or longer and thinner.
well thanks for all your help.
- number of turns of the wire
- electrical current
- material of the core
I have to make it whit an specific wire: 20mts caliber 22
I was wondering if the shape of the electromagnet influence in the force because i found diferent types: shape 'I', shape 'C', shape 'E', shape 'U'
what would be the best for my particular purpose??
And the size of the core?? what should I use?? shorter and thicker, or longer and thinner.
well thanks for all your help.





RE: +strongest electromagnet for carrying the most possible weight?
Don't you think you should divulge what your purpose is?
TTFN
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RE: +strongest electromagnet for carrying the most possible weight?
There is no reason for the field to exceed the saturation level of what you are lifting.
As long as you generate enough field strength then you should opt for more contact.
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Plymouth Tube
RE: +strongest electromagnet for carrying the most possible weight?
PURPOSE: build a strong electromagnet for carrying the most possible weight.
So.. I have 20mts of wire, if i want to increase the surface of contact I'll need to decrease the number of turns of wire but that would make the field weaker.. so I'll need to find a middle point between surface and turns where the force is maximum.
am I correct??
Do you know any formula for calculating the force in function of the surface of contact??
RE: +strongest electromagnet for carrying the most possible weight?
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: +strongest electromagnet for carrying the most possible weight?
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: +strongest electromagnet for carrying the most possible weight?
Let's see, what is max current for 22ga? Then figure saturation of steel in nA, then back out the cross section area.
It is going to be very small.
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Plymouth Tube
RE: +strongest electromagnet for carrying the most possible weight?
C, U, E shapes are better than I, since the formers can form a close magnetic circuit, so a higher Bd, which is defined as the operating point. for a I shaped magnet, higher Bsat doesnot mean a higher Bd due self demagentization effect, in this ccase, the length the magnet, the higher the Bd.
RE: +strongest electromagnet for carrying the most possible weight?
Well thanks, so i will go for the c shape, and i will have to find a material with a high saturation limit, i think is iron with a high purity isnt it??, but do you know where can i find it??,do you know any device that needs it?
thanks for helping me
RE: +strongest electromagnet for carrying the most possible weight?
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: +strongest electromagnet for carrying the most possible weight?
RE: +strongest electromagnet for carrying the most possible weight?
Good rules of thumb. 1. Keep your coil close to the load. 2. Use a PWM to control your circuit as it will allow you to compensate for magnetic moment of load etc.
Have a great time!