single needle, unison feed, flatbed sewing machine.(Extra-large hook) (automatic under trimming &back tacking, pneumatic presser foot lifting) (for heavy materials)(large type)
The button switch with the immobile function, utilizing the small round button B, could change the function of square button A to the touch-control switch C, easy operation. The newly designed under trimming mechanism, applied with the close up type of lubrication, could decrease the wornout of parts &increase the working efficiency. The special movement mechanism of bobbin case opener case opener (1 stitch, 1 movement stroke), with the slowdown type of closing, could lower strike-sound & avoid the wornout of parts.
The stitch length is adjustable & changeable, with minimum lubrications. The alternation movement of presser foot is adjustable & changeable. For sewing functional and ornamental seams, preferably on high quality leather goods, seat cover, cushions, bags, tents,...etc...
