The machine is a single straight needle lockstitch sewing machines with link-type thread take-up mechanism and big hook. The motion between upper shaft and lower shaft is transferred by spiral bevel gear, with stability and high efficiency. The loopier-type presser foot. With lift volume up to 15mm, can feed super heavy weight elastic materials in manual feed condition, and with computer control system can adjust speed freely. The presser foot lifts protection; needle position control and other functions make the series practical and convenient. It is suitable for processing and mending stitch on large elastic sewn products, as bed cover, mattress, sofa cushions etc. Machine Head Span 750mm Sewing Speed 0-1000spm Presser foot lift 15mm Needle DPX5,100-130, 15-18# Motor Power 400W Speed adjustable clutch motor