Shanggong Industrial Sewing Machine with 4 Needles and 6 Threads GK5100D-02F-7

The Shanggong GK5100D-02F-7 is a four-needle, six-thread flat seam machine designed to produce smooth, flat stitches without bulges, providing a comfortable finish suitable for underwear and activewear. It features a direct-drive motor, automatic thread trimmer, and speeds of up to 3,500 stitches/min, with a design suitable for sewing fabrics, tight garments, and small-diameter tubes.

• Zero-Bulge Flat Seam Stitches: Smooth, skin-friendly finish, ideal for underwear and activewear that require a soft touch.

• 4 Needles & 6 Threads: Durable construction with high sewing flexibility and professional-grade finishing for precision production.

• Built-in Direct Drive Motor: Instant response, low noise, and reduced vibration for a comfortable and sustainable working environment.

• Nano-Coated Needle Bar: Oil-resistant, stronger, and more durable, reducing maintenance and extending service life.

• Compact 150 mm Cylinder: Allows easy sewing of small-diameter tubes up to 70 mm, such as stockings, tight garments, and sleeves.

• Double Differential Feed: Makes sewing curved seams and complex bindings easier with high precision.

• Auto Thread Trimmer + Double Knives: Safe and efficient cutting that increases productivity and reduces manual effort.

• Ceramic Thread-Passing Mechanism: Ensures smooth thread flow for softer and more consistent stitches on every piece.

• The maximum speed reaches 3,500 stitches per minute.

• The machine features 4 needles.

• The machine operates with 6 threads.

• The stitch length ranges from 1.6 to 2.5 mm.

• The cylinder length is 150 mm.

• The presser foot lift ranges from 0.1 to 8 mm.

• The differential feed ratio ranges from 1:0.7 to 1:0.5.

• The machine features a direct-drive design.