Cited by 230 sewing machine is a machine installation instructions, needle and crochet mutual position is correct, directly affect the quality of sewing. When the needle crochet hook into a coil, crochet needle tip close to the plane of the gap, the gap is that just by non-reliable. 2. Stop when crochet crochet needle piercing whereabouts coil (on the tip of the needle and crochet phase usually head) back and crochet needle distance of 1-2 mm. 3, the needle height adjustable fixed SHCS positive decision of the needle bar. Four million Proton brand lead is a main technical parameters, spindle speed 40 rev / min 2, maximum line seam thickness 65 mm (3 kg / m2) 3 Needle bf-200, industrial machine needles 4 stitches Distance 20-40 mm adjustable 5, with a line specification 21 / 3-4 share Lun cotton line 6, Dimensions (LWH) 270 × 70 × 150cm 7, 8 300 kg total weight machine, motor type, three Y90S-4 1.1 千瓦