While altering size is one way to impact a magnet’s strength, it can become quite expensive to shop for larger magnets if you’re using a lot of them. That’s why it’s important to understand what you’re actually buying as choosing the right pull force can get you the best bang for your buck when it comes to magnet shopping!  What Is Pull Force?  Pull force and magnet strength can often be confused. The pull force of a magnet is essentially the force needed to pull two magnets apart or to remove a magnet from some other surface. For example, a magnet with a 15lb pull force does not necessarily mean it will be able to lift a 15lb object. Pull force is dependent on several variables, including the temperature and size of the magnet (like magnetic force and field), and also surface condition and pull angle.  We’re often asked, “What is the pull strength of your magnets?” Pull strength is a very subjective measure that is dependent upon many factors such as:
  1. Type of material being pulled against;
  2. Surface conditions;
  3. Physical contact;
  4. Magnet characteristics such as plating composition; and
  5. Presence or absence of lateral and rotational forces.
All that being said, a 1-inch diameter by 1/8 inch thick plated N48 disc magnet will lift about 12.2 lbs of ferrous steel under ideal conditions. Why Does it Matter?  Don’t be fooled by a “bigger is better” mentality when it comes to magnets. All shapes have their advantages, but it’s important to remember that smaller magnets may, in fact, have larger pull forces than larger ones.  Find The Magnet You Need With Apex Magnets Once you know what pull force you need, use our popular grid size feature to find the exact magnet to buy! Here’s a tutorial on how to use our popular grid size feature here. If you’re ever not sure on which magnet is best for your project, give us a call! To get a jumpstart on your next magnet search, download this printable PDF.