industral PP woven bag sewing machine FGB4-1 is used  for thick material ,it adopts single-needle and oscillating shuttle, upper and lower synchronized feeding, forms 2-thread lock stitch. It has been adjusted in specialized according to the sewing re-quirements of containing bag. It is suitable for sewing containing bags with super-thick, medium and thinner material. No skipping stitches when sewing thick material and no puckers when sewing thin material. The manual presser could be pulled in forward, backward, left and right directions; it could fix the partial of sewing material. For packing prod-ucts with dust-proof strip, it could sewing that in changing needle position and three kinds of parts.

It is suitable for sewing tent, camp and saddle with linen cloth wheel, canvas , leather and felt.

Main  characteristics

    It has lifting feeding tooth and alternation presser.This structure could keep the upper layer and lower layerin same position without move.when sewing smooth.viscous and super-long products under any length of stitch size.The connecting-bar take-up mechanism could improve the speed of arm shaft,reduce the noise.guarantee the quality of whole machine and prolong the service life.