Description Specifications Finished mask size: standard 175 x 95 mm; special 180 x 95 mm, 145 x 90 mm, 125 x 90 mm Production speed: 90 to 110 pcs/min Power: 12 kw ultrasonic Frequency: 20 khz Power supply: 220 v, 50/60 hz Air pressure: 5 to 6 kg/cm² Driving method: servo and stepping motors Applicable material: pp nonwoven fabric or composite fiber Machine dimension: 6000 x 4000 x 2000 mm