Review of Magcraft NSN0575 3/8-Inch by 1/4-Inch Rare Earth Disc Magnets, 12-Count

I am using this to make a small scaled test generator for a wind turbine.I used 28 gage wire in tiny loops of 100 coils about 1.5" across.I used a CD and hot glued 12 of these in 2 phases of 6 coils each.I placed 12 magnets with alterning polarity around a second CD.I added a shaft and placed the magnets about 1mm from the coils.I used a 2.8v dual LED that generates a green/red light for +/-.Since this is a generator it will generate A/C power.I did not have extra diodes to tie the two phases together so I have a seperate LED for each phase.Spinning by hand I can get both to light , but using a drill they get pretty bright.I figure when I get the two poles tied together I will have about 6v at probably .5A.This is no where need, so I ordered much bigger magnets... 1"x3/8" with a 34 pound pull (over 4x larger than these) and will likely double the number and size of the coils.I am hoping for 24v at maybe 5-10 amps in a good wind.To keep from overheating the coils I will likely make it 4-6 phases.

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Product Description:
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These disc magnets are 0.375 inch (9.5mm) diameter and 0.250 inch (6.4mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 8 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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Review of Magcraft NSN0834 1-Inch by 1/4-Inch by 1/10-Inch Rare Earth Block Magnets, 12-Count

Be aware! These babies are ridiculous strong!!!! They are very hard to pull apart. They are also very hard to pull from any surface. I have to slide them on the surface to get to the edge of the surface to be able to get some leverage to pull it off. They might just be too strong for what I need. That's the only reason why I'm rating 4 stars instead of 5.

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Product Description:
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These block magnets are 1.000 inch (25.4mm) long, 0.250 inch (6.4mm) wide and 0.100 inch (2.5mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 5 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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Review of Magcraft NSN0586 1/2-Inch by 1/7-Inch by 1/8-Inch Rare Earth Ring Magnets, 12-Count

These magnets are much stronger than I thought they would be. Really nice. I like the countersunk feature which allows one to screw this magnet into a flat surface and maintain its flatness.I plan on using them to create a jig for setting joiner knives.

Click Here to see more reviews about: Magcraft NSN0586 1/2-Inch by 1/7-Inch by 1/8-Inch Rare Earth Ring Magnets, 12-Count

Product Description:
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These countersunk ring magnets are 0.500 inch (12.7mm) outside diameter, 0.150 inch (3.8mm) inside diameter and 0.125 inch (3.2mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 3 lbs. Maximum working temperature is 176 F (80 C). Magnets may chip and crack if allowed to snap together.

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