... axis) precision: 5-90mm/sMovement precision: ±0.1 mmAir jet sprayer: noncontact, quantifiveAir pump precision: 48000 steps, 0.01ulPumping ... width: 0.5-10 mm (according to matrix hydrophilicity)Air supply: 4-8 kgf/cm2Power supply: 220VACWeight: 20KG Computer ... stepping X & Y axis movement;Air pump controlled Z axis movement, adjustable air jet sprayer;48000 steps air pump, which is double precision ...