How strong should an electromagnet be to elevate a 1kg mass?

AI Thread Summary
To elevate and hold a 1 kg weight using an electromagnet in a ferrous environment, the strength of the electromagnet must be carefully calculated, considering the surrounding materials. The discussion highlights that the weight of the steel cube itself, estimated to be around 80 kg, significantly impacts the required magnetic force. Participants emphasize that the thickness and density of the steel will influence the electromagnetic field strength needed. It is noted that the primary goal is to lift the 1 kg mass, not the entire structure. Understanding these factors is crucial for determining the feasibility of the project.
Arturas Surblys
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Hello Everybody,

Can somebody help me to find out about Electromagnets and Electric motors? I hope that here it is possible to get an expert opinion about the next question. How strong should be electromagnet to elevate and hold f.e. 1 kg weight in the middle of a ferrous environment (f.e. cube 1mx1mx1m), steel thickness 10 mm. Is it possible to achieve this target or is it totally unreachable?
 
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Arturas Surblys said:
Hello Everybody,

Can somebody help me to find out about Electromagnets and Electric motors? I hope that here it is possible to get an expert opinion about the next question. How strong should be electromagnet to elevate and hold f.e. 1 kg weight in the middle of a ferrous environment (f.e. cube 1mx1mx1m), steel thickness 10 mm. Is it possible to achieve this target or is it totally unreachable?
Can you send a diagram?
 
Do you mean something like this?

lifting-electro-magnet-old-car-260nw-433342318.jpg


I don't know what you mean by
in the middle of a ferrous environment
 

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For example steel cube with W1000xH1000xL1000 mm. each side is 10mm thickness steel and inside is electromagnets to hold 1 kg weight. Diagramm is attached.
 

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Arturas Surblys said:
For example steel cube with W1000xH1000xL1000 mm. each side is 10mm thickness steel and inside is electromagnets to hold 1 kg weight. Diagramm is attached.

please don't make people open pdf files always just upload the image

upload_2019-3-8_11-58-10.png
from your measurements, I suspect you have seriously underestimated the weight

each side will be well over 1kg ... 1m x 1m x 10mm ... without looking online for a calculator, you are probably close to 10kg per side
10 x 6 sides there's 60kg as an estimateDave
 

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100 cm×100 cm×1 cm =10000 cm3. 10 kg per side would be for water at 1 g/mL. Iron density is a bit below 8 g/cm3, so close to 80 kg per plate.

But I guess it doesn't matter, as far as I understand OP doesn't want to elevate everything, but some other mass inside of the cube.
 
Borek said:
100 cm×100 cm×1 cm =10000 cm3. 10 kg per side would be for water at 1 g/mL. Iron density is a bit below 8 g/cm3, so close to 80 kg per plate.

But I guess it doesn't matter, as far as I understand OP doesn't want to elevate everything, but some other mass inside of the cube.
Yes you are wright. It is nothing to do with the cube, just to show the environment. I believe thickness of plates and material will affect the electromagnetic field.
 
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On a bigger, yet not 'industrial' scale, think security door mag-locks...
 

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