Alnico Channel Bar Magnets Item No. MPACNL-03 series
Alnico Channel Grade 5 material, unpainted gray in color and have a maximum temperature of 550 degrees C / Max.Temperature, 1020 °F
Length tolerance is +/-0.045″, width & channel tolerances are +/- 0.016″ and thickness tolerance is +/-0.005″
6″ Length, 1” Width, 5/8” Thickness, 3/8” U-Channel Width
Maximum pull of 40 pounds
MPCO Alnico Channel shaped magnets are available in both Cast Alnico 5 and Sintered Alnico 2 materials.
Very temperature stable, great for high
heat applications
Maximum working temperature
975° -1020°F
May be ground to size
Does not lend itself to conventional machining (hard & brittle)
High residual induction and energy product compared to ceramic. Low coercive force compared to ceramic and rare earth materials (more subject to demagnetization)
Most common grades of alnico are 5 & 8
Where Alnico is appropriate, magnet size can be minimized if it can be magnetized after assembly into the magnetic circuit. If used independent of other circuit components, as in security applications, the effective length to diameter ratio (related to the permeance coefficient) must be great enough to cause the magnet to work above the knee in its second quadrant demagnetization curve. For critical applications, Alnico magnets may be calibrated to an established reference flux density value. Cast Alnico 5 Alnico Channel Magnet
Alnico channel magnets can be used for various holding applications and also for removal of tramp iron from chutes carrying grains, plastics, glass, minerals & other materials conveyed in powder or granular form.
Alnico channel bar magnets offer high temperature and corrosion resistance as well as greater magnetic pull than ceramic magnets. They are unpainted Gray or Blue in color.
Alnico channels are magnetized as a horseshoe with the South Pole on one side of the channel & the North Pole on the other side.
MPCO alnico channel magnets are made of cast Alnico 5 material. All dimensions approximate and as cast with pole faces ground smooth. Other sizes are available upon request.
| Thickness | Width | U-Channel Width | Length | Max. Pull, lbs. | Max. Temperature, °F | Grade | Item No. |
| 3/8“ | 5/8“ | 1/4“ | 5″ | 16 | 1020° | Alnico 5 | MPACNL-01 |
| 1/2“ | 3/4“ | 1/4“ | 6″ | 34 | 1020° | Alnico 5 | MPACNL-02 |
| 5/8“ | 1″ | 3/8“ | 6″ | 40 | 1020° | Alnico 5 | MPACNL-03 |
| 3/4“ | 1 1/4“ | 7/16“ | 6″ | 60 | 1020° | Alnico 5 | MPACNL-04 |
| 7/8“ | 1 1/2“ | 1/2“ | 6″ | 60 | 1020° | Alnico 5 | MPACNL-05 |
All Measurements are in inches (unless otherwise noted). Alnico U-Channel Magnets
Direction of Magnetization (DOM) is through the thickness unless noted
Unless otherwise specified, magnets will be furnished in magnetized condition
Holding forces are approximate. These are average values obtained under laboratory conditions. Size, shape, and material of the test piece may affect actual pull forces
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