Model GB4-1 is High speed, Single Needle, Compound Feed with alternating presser & reverse feed lockstitch machine. As a heavy duty lockstitch sewing machine, GB4-1 model is used to sew canvas, container bags, belts, leather, tent, luggage & thick material.

    Up-and-down feed dog and alternating presser foot are adopted in this model. Such a structure ensures that the upper and lower layers will not displace under any needle pitch, sticky material or super long products so as to obtain orderly products with beautiful stitches. The link take-up system increases the speed of the main shaft and reduces noise, ensuring the quality of the whole machine and prolonging service life. Oversize oscillating shuttle may be used to increase thread volume and to reduce number of times of thread change-over to enhance working efficiency.

• Max.Sewing Speed: 800/min
• Stitch length: 0-14mm
• Presser food lift: 14mm
• Operating space: 200×420mm
• Needle: GV2  110-280
• Motor power  550W, 1400rpm (Clutch motor)
• Net weight of machine head: 78kg
• Need bar stroke: 58mm
• Shuttle hook: SEIKO HSH-7-3