Common applications
High performance motors •
Magnetic couplings • Magnetic
separators
Please use caution when handling magnetized Samarium Cobalt magnets,
their exceptional magnetic force may cause them to attract to metal (or
to each other) so strongly that fingers in their path could prove painful.
Machining and tolerances
We achieve dimensional size and tolerance by cutting or grinding with
super abrasives. Samarium Cobalt (SmCo) cannot be ground with conventional
drilling, turning or milling processes, and must be machined before they
are magnetized. Additionally, large or complex assemblies are usually
magnetized prior to assembly. Standard tolerances for Samarium Cobalt
magnets are +/-.005” for ground dimensions. Adams stocks SmCo magnets
in block, ring and disc form in a variety of sizes and grades, and we
are fully equipped to produce the size and tolerance that you require.
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1:5 alloy material
1:5 offers 16 MGOe (energy product) to 22 MGOe and is made up of approximately
50% samarium and 50% cobalt. The 1:5 series has a maximum recommended
operating temperature of 250°C. SmCo 1:5 magnets require lower field
strengths than 2:17 materials to magnetize. In some instances, 1:5 material
may be magnetized with multiple poles, provided that a magnetizing fixture
is available.
2:17 alloy material
2:17 offers 24 MGOe to 32 MGOe and is composed of about 25% samarium,
5% copper, 18% iron, 2% hafnium or zirconium, with the remainder being
cobalt. The 2:17 series of has a maximum operating temperature of 350°C.
Special grades of 2:17 are available which can operate to even higher
temperatures. SmCo 2:17 requires extremely high magnetizing fields, and
multiple pole magnetization is not possible.
Download product specifications in PDF format.
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