The model uses a rod-type feeding structure, good durability, feeding balance, the bulk of the type of slag and submersible large seam material in the sewing process can make the upper and lower layers of feeding The amount of the same. The use of bullt-in integrated computer control technology, stable performance, anti-interference abillity. Using a large rotary hook, to reduce the number of bottom line, improve work efficiency; the use of automatic lubrication device to improve the service life of the machine.With automatic needle position, the number of automatic stitches, automatic counting down stitch, automatic thread cut, electronic clip, automatic lfting feet and lfting towel wheel and other Itelligent sewing mode. Applicable to sewing thick material, luggage,leather, leather products, sofas.