Caculate the Pull in LBS of Electromagnets

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SUMMARY

This discussion focuses on calculating the pull force in pounds (LBS) of electromagnets using the formula Pull in LBS = B x A / 72,000,000, where B represents flux density. The user seeks clarification on determining flux density (B) in lines per square inch, emphasizing the importance of core permeability, specifically with steel, as well as input voltage, current (amps), and the number of coil turns. Additionally, the user inquires about whether the core of a DC electromagnet should be laminated to enhance performance.

PREREQUISITES
  • Understanding of electromagnetism principles
  • Knowledge of flux density calculations
  • Familiarity with core materials, specifically steel
  • Basic electrical concepts, including voltage and current
NEXT STEPS
  • Research how to calculate flux density (B) in electromagnets
  • Explore the effects of core permeability on electromagnet performance
  • Learn about the benefits of laminated cores in DC electromagnets
  • Investigate the relationship between coil turns and magnetic field strength
USEFUL FOR

Electrical engineers, hobbyists designing electromagnets, and anyone involved in magnetic field calculations and electromagnet design.

burnit
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I need to caculate the Pull in LBS of Electromagnets, i am missing some information regarding this & maybe some brain cells also.

B (Flux Density)= Flux Lines/ Area

Pull in LBS= B x A / 72,000,000

Ok, how do i get B Flux Density in lines per sq/inch for the calculation.

I guess it has to do with core permeability--i am using Steel
Input voltage & Amps
Number of turns on the Coils

Some help would be greatly appreciated.
 
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Forgot to ask, should the core of a DC Electromagnet be Laminated?

Thanks
 

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