specifications specifications model name feed system max sewing speed stitch length top-feed amount differential-feed ratio lift of the presser foot needle bar stroke needle at the time of the delivery stitch length adjustment safety stitch looper system looper stroke looper stroke of the front and rear speed control lubrication lubricating oil motor output power requirement power consumption 1 2.1~3.3mm automatic juki new defrix oil no.1 equivalent to iso vg7 750w single-phase 3-phase rating 425va 750w single-phase 3-phase rating 425va 1 1~4mm mh-481 mh-481-54 mh-484 mh-484-54 mh-486-54 bottom ...