Magna-Rolls are constructed in several types with a flat surface or crowned. Contoured and special faces for specific jobs are available, as well as single and multiple gap units.
Virtually any diameter from 2-1/2" (63 mm) and up can be supplied in Magna-Rolls. The 2-1/2" (63 mm) and 4-3/8" (110 mm) rolls have a narrow air gap which provides maximum holding power and traction for a given diameter. When arranged side by side on a common shaft, these units are placed with like poles adjacent (N-S, S-N, N-S, etc.) resulting in deeper and stronger magnetic fields and minimum space.