The power sieve, available with 1- or 2-mm screen, will catch soil and remove coarse fragments and crop residue from the processed soil sample. The power sieve is bolted directly below the soil grinder, automatically removing stones and debris as soil exits the soil grinder. The power sieve is recommended for high-throughput operations. The electric motor may be wired for 115 VAC (5.8 A, 60 Hz, 1-phase) or 230 VAC (2.9 A, 60 Hz, 1-phase) electrical configurations. A catch bucket or conveyor system should be installed underneath the power sieve to discard debris.