When procuring equipment for a stone quarry, focus on cutting precision, motor power, and durability. For diamond wire saws, ensure the linear speed is adjustable (0-40 m/s) to handle different stone hardness levels like granite or marble. For block cutting machines, verify the maximum blade diameter and ensure the spindle box uses a heavy-duty oil-immersed structure to reduce wear during 24/7 operations. Always prioritize high-efficiency permanent magnet motors to reduce energy consumption by up to 15%.