Block magnets are generic terms of all magnets in block, bar, cube, rectangular, square, strip, quadrate and channels forms, also recognized as neodymium block magnets or rectangular magnets, applying mostly on industrial, commercial, rotor, electronics, and some personal area.
We would need a roughly expectation on length(mm)*width(mm)*height(mm) such as 60*30*10mm. It could be any size you want under a robust design and impressive strength. The magnetic poles are usually at both ends pointed to north pole(N) and south pole(S), therefore both ends of the magnet have the strongest magnetism. We can also custom the magnetism to go along axially, diametrically, vertically, radially, one-sidedly, dual-sidedly, or through thickness, etc.
Block magnet is one of the most essential components for energy producing, office supplies, electronics, transportation, construction, etc, only after its surface coating such as sintering, bonding, injection molding, extrusion, etc. Let’s check how your idea works.