About Magnets
More
Encased Ceramic Magnets with Unthreaded Hole
A case protects the magnetic material. Steel cases also concentrate and focus the magnetic field. Ceramic magnets resist demagnetization better than other magnets and are an economical choice.
A keeper covers the poles to preserve the strength of the magnet and protect it from attracting metal during storage.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Thick. | Wd. | Lg. | Hole Dia. | Max. Pull, lbs. | Sets of Poles | Max. Temp., °F | Magnet Grade | Mounting Hole Style | Number of Mounting Holes | For Screw Size  | Includes | Each | ||
Steel Case | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1/4" | 7/8" | 1" | 1/8" | 7 | 1 | 175° | C8 | Straight | 1 | No. 4 | __ | 00000000 | 00000 |
| 7 | 5/16" | 15/16" | 2 5/8" | 5/32" | 6 | 1 | 175° | C8 | Straight | 2 | No. 6 | __ | 00000000 | 0000 |
| 9 | 1 3/8" | 7/8" | 3 1/4" | 9/32" | 40 | 1 | 600° | C5 | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 9 | 1 3/8" | 7/8" | 5 1/4" | 9/32" | 65 | 1 | 600° | C5 | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 9 | 1 3/8" | 1 1/4" | 3 1/4" | 9/32" | 55 | 1 | 600° | C5 | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 9 | 1 3/8" | 1 1/4" | 5 1/4" | 9/32" | 120 | 1 | 600° | C5 | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 9 | 2 1/8" | 1 7/8" | 5 1/4" | 9/32" | 250 | 1 | 600° | C5 | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
Zinc-Plated Steel Case | ||||||||||||||
| 8 | 7/16" | 1 33/64" | 6" | 1/4" | 100 | 2 | 170° | __ | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 8 | 0.46" | 1 3/64" | 8" | 0.435" | 60 | 2 | 170° | __ | Straight | 2 | 3/8" | __ | 00000000 | 0000 |
| 8 | 15/32" | 1 3/64" | 2 45/64" | 0.192" | 25 | 2 | 170° | __ | Straight | 2 | No. 8 | __ | 00000000 | 0000 |
| 8 | 0.62" | 1 23/32" | 12" | 1/4" | 150 | 2 | 170° | __ | Straight | 2 | 1/4" | __ | 00000000 | 00000 |
| 10 | 1" | 1 5/8" | 2" | 7/32" | 35 | 1 | 170° | C8 | Straight | 2 | No. 10 | __ | 00000000 | 00000 |
Nickel-Plated Steel Case | ||||||||||||||
| 8 | 9/16" | 1" | 4 1/2" | 9/32" | 40 | 1 | 175° | C5 | Straight | 2 | 1/4" | Keeper | 00000000 | 0000 |
| 8 | 9/16" | 1" | 6 1/2" | 9/32" | 55 | 1 | 175° | C5 | Straight | 2 | 1/4" | Keeper | 00000000 | 00000 |
| 8 | 9/16" | 1" | 12 1/2" | 9/32" | 120 | 1 | 175° | C5 | Straight | 2 | 1/4" | Keeper | 00000000 | 00000 |
Cadmium-Plated Steel Case | ||||||||||||||
| 8 | 1/2" | 1 3/16" | 2 3/4" | 3/16" | 35 | 1 | 175° | C8 | Straight | 2 | No. 8 | __ | 00000000 | 0000 |
Encased Ceramic Magnets
A case protects the magnetic material. Ceramic magnets resist demagnetization better than other magnets and are an economical choice.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Style | Thick. | Wd. | Lg. | Max. Pull, lbs. | Sets of Poles | Max. Temperature, °F | Magnet Grade | Each | |
Aluminum Case | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3 | 1 1/4" | 1 1/4" | 4 1/2" | 75 | 2 | 180° | C8 | 0000000 | 000000 |
| 3 | 1 1/4" | 1 1/4" | 4 1/2" | 110 | 2 | 180° | C8 | 0000000 | 00000 |
| 3 | 1 1/4" | 1 7/8" | 4 1/2" | 150 | 2 | 180° | C8 | 0000000 | 00000 |
| 3 | 1 1/4" | 2 1/2" | 4 1/2" | 230 | 3 | 180° | C8 | 0000000 | 00000 |
Plastic Case | |||||||||
| 4 | 1 1/4" | 1" | 4 1/2" | 45 | 1 | 300° | C8 | 0000000 | 00000 |
| 4 | 1 1/4" | 1" | 4 1/2" | 55 | 1 | 300° | C8 | 0000000 | 00000 |
| 4 | 1 1/4" | 1" | 4 1/2" | 65 | 1 | 300° | C8 | 0000000 | 00000 |
Alnico U-Channel Magnets
Alnico magnets aren't as strong as rare earth magnets, but they withstand the highest temperatures.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Thick. | Wd. | U-Channel Wd. | Lg. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | Each | |
| 5/16" | 1/2" | 3/16" | 5" | 11 | 1020° | Alnico 5 | 0000000 | 000000 |
| 3/8" | 5/8" | 1/4" | 5" | 16 | 1020° | Alnico 5 | 0000000 | 00000 |
| 1/2" | 3/4" | 1/4" | 6" | 34 | 1020° | Alnico 5 | 0000000 | 00000 |
| 5/8" | 1" | 3/8" | 6" | 40 | 1020° | Alnico 5 | 0000000 | 000000 |
| 3/4" | 1 1/4" | 7/16" | 6" | 60 | 1020° | Alnico 5 | 0000000 | 000000 |
| 7/8" | 1 1/2" | 1/2" | 6" | 60 | 1020° | Alnico 5 | 0000000 | 000000 |