Electrical DIY Electromagnet: How to Make or Buy One for Lifting Up to 178 Pounds

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SUMMARY

This discussion centers on the creation and purchase of electromagnets capable of lifting significant weights, specifically for personal use. The user weighs 128 pounds and is interested in an electromagnet with a pull force of 178 pounds, which is available on Amazon. Key considerations include the necessity of a specific amperage for a 12V power source, the importance of understanding holding force versus static weight, and the recommendation to experiment with weaker magnets before attempting to lift oneself. Alternative options such as mechanical release magnets are also suggested for safety.

PREREQUISITES
  • Understanding of electromagnet principles and holding force
  • Familiarity with electrical specifications, including voltage and amperage
  • Knowledge of safety practices when working with lifting equipment
  • Basic mechanical knowledge regarding the use of manual-release magnets
NEXT STEPS
  • Research the specifications for electromagnets on McMaster-Carr
  • Learn about the differences between holding force and dynamic load requirements
  • Investigate mechanical release magnets as an alternative lifting solution
  • Experiment with lower-rated electromagnets to understand their capabilities and limitations
USEFUL FOR

This discussion is beneficial for hobbyists, engineers, and safety-conscious individuals interested in DIY electromagnet projects, as well as those exploring safe lifting solutions for personal use.

stephenkohnle53
I want to make an electromagnet that can carry me or buy one. I weigh 128 pounds (58kg) and I found an electromagnet with a pull force of 178 pounds (80kg).
https://www.amazon.com/dp/B01EWHSF3K/?tag=pfamazon01-20
Can I attach any 12v source to power it or does it need a specific amperage. And could I make a electromagnet from scratch that could do that, and if so how. If I made one myself I would definitely only use it a couple feet off the ground so if I fall I wouldn't be hurt. But if I bought one Id go up 10 feet since it should be more reliable and I would wear protection. And could I get both for a combined total of $80- $120
Also if I can't safely do any of this I would like to know how so I can make a weaker magnet for lifting something else
 
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stephenkohnle53 said:
I want to make an electromagnet that can carry me or buy one. I weigh 128 pounds (58kg) and I found an electromagnet with a pull force of 178 pounds (80kg).
https://www.amazon.com/dp/B01EWHSF3K/?tag=pfamazon01-20
Can I attach any 12v source to power it or does it need a specific amperage. And could I make a electromagnet from scratch that could do that, and if so how. If I made one myself I would definitely only use it a couple feet off the ground so if I fall I wouldn't be hurt. But if I bought one Id go up 10 feet since it should be more reliable and I would wear protection. And could I get both for a combined total of $80- $120
Also if I can't safely do any of this I would like to know how so I can make a weaker magnet for lifting something else
You do understand that the weight listed for that magnet is the Holding Force, right? That means it will stay stuck to a thick ferrous surface with about that amount of weight pulling on it, not that it will attract to a thick ferrous surface from some distance away with that force.

I didn't see a resistance or current listed at 12V for that magnet. Do you see it in the specs anywhere?

And are you familiar with mechanical release magnets? That would be an alternative to using an electromagnet.

Finally, do you understand how a non-static load would affect the required Holding Force for such a magnet? If you move at all while being held up, the magnet will have to be significantly stronger than just your static weight.
 
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Everything berkeman said, plus be aware that the magnet will only hold its rated force when pulling on a smooth, flat surface. And when the load is exactly centered on the magnet. You should experiment with a weaker magnet and smaller loads before lifting yourself. That way your learning experience can be painless.

A good source of electromagnets, with voltage and current requirements, is McMaster-Carr: www.mcmaster.com.
 
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This is the type of manual-release lifting magnet I had in mind, BTW. I'm not sure how much they cost:

https://www.magnetics.com/products/mg/PowerLift_PNL0250.jpg
PowerLift_PNL0250.jpg
 

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BTW I do know that static forces change if I move and the rated force of a magnet is different than it may function under certain conditions. BTW the magnet mentioned above me is $243 on amazon, it looks good but I doubt I can afford that. Christmas is coming so my budget is a bit varied so it can sometimes go that high. If i got that magnet I would need two so I can hang with one hand then lift with another so I can't get that. However, hypothetically what rated force do you guys think I would need at my weight assuming I am climbing a steel beam, I will be back at 1:00 to talk more
 
stephenkohnle53 said:
BTW I do know that static forces change if I move and the rated force of a magnet is different than it may function under certain conditions. BTW the magnet mentioned above me is $243 on amazon, it looks good but I doubt I can afford that. Christmas is coming so my budget is a bit varied so it can sometimes go that high. If i got that magnet I would need two so I can hang with one hand then lift with another so I can't get that. However, hypothetically what rated force do you guys think I would need at my weight assuming I am climbing a steel beam, I will be back at 1:00 to talk more
I'm not sure we can help you with steel beam climbing on the PF. Sounds a bit dangerous. Maybe climb a ladder instead? :wink:
 
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