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4-Pole Magnets
Series: 4P
- Application
- By eliminating costly clamps and fixtures, Four-Pole Cylindrical Insulated Magnet Assemblies provide an economical solution to many material handling applications involving ferrous products. These magnets can improve productivity in applications that include part feeding, automatic part transfers, welding and holding parts in metal forming operations. All MPI Cylindrical Insulated Magnet Assemblies are supplied standard with precision-ground flat, extended mild steel poles, which can be machined to custom fit irregular shapes. These magnets are not affected by vibration or temperatures up to 180° F and are fully insulated for direct mounting to steel surfaces.
- Construction:
- Powerful Ceramic Permanent Magnet material produces a high concentration of magnet energy in the mild steel poles contact surfaces. A nonferrous aluminum cup, potted with high-impact epoxy, provides both physical durability and insulation against demagnetization. Actual loss of 1/2 of 1% over 100 years can be expected, under normal conditions.
- Selection:
- The three-, four- and five-pole Cylindrical Insulated Magnet Assemblies are a continuation of the two-pole design with the additional benefits of increased holding values, a wider range of sizes and tapped or countersunk thru-holes for mounting. Like the two-pole design, these multipole assemblies can be mounted directly to steel surfaces. They are not, however, suitable for welding applications. Holding values shown in the charts are the result of testing under ideal conditions, indicating vertical pull-off of smooth, clean surfaces and will decrease with the use of heavily oiled, rusty, painted, or thin material thickness. Use a proportionate safety factor when selecting holding values for your application. Special designs are common with this product line and MPI's engineering and testing facilities are available to satisfy your magnet requirements.
- Caution:
- Care must be used not to drill, tap or change the magnet assemblies without risk of reducing the holding values as shown in the following charts.
| Four-Pole with Thru Hole – Series 4PH Selection Guide |
| Part No. |
Dimensions |
82’ C Sink |
Holding Value Lbs. |
| Dia. A |
Length “B” |
C |
| 4PH-2050 |
2 |
0.5 |
¼ Flat HD Machine Screw |
20.8 |
| 4PH-2075 |
0.75 |
41.6 |
| 4PH-2010 |
1 |
160 |
| 4PH-2550 |
2.5 |
0.5 |
20 |
| 4PH-2562 |
0.75 |
46.4 |
| 4PH-2510 |
1 |
96 |
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