Air jet sieve working principle. Advanced electronic turbine generator and negative force work together to give powerful negative air jet that drives the
particles from the nozzle then upwards until collision with the top sieve cover. De-agglomerated particles is re-vacuumed back towards the sieve cloth. Smaller particles pass and accumulate in vacuum or sample collector, bigger particles stays on sieve cloth. A satisfying sieving process is thus accomplished. Size limit with one sieve or particle size distribution withmultiple sieves.