The Jack JK-T1790GS-2 is a high-performance computerized buttonhole sewing machine designed for precise, consistent, and high-speed production. It is a 2-thread lockstitch machine, specially engineered for light to medium-weight fabrics, including shirts, knitwear, and garments requiring high-quality buttonholes.
Equipped with a direct-drive AC servo motor, the machine ensures quiet operation, low vibration, and up to 70% energy savings. Its advanced electronic thread tension system allows independent control during different stitching phases (parallel stitching and bartacking), ensuring clean and uniform buttonholes every time.
The machine features a multi-cut knife system, allowing different buttonhole sizes without changing the knife, along with a double-cycle sewing function that adds reinforcement stitching for stronger and more durable buttonholes—especially useful for elastic fabrics.
Key Features
Automatic buttonhole sewing (2-thread lockstitch system)
Direct-drive servo motor (quiet & energy-efficient)
Electronic programmable thread tension control
Multi-cut knife system (no need to change knife)
Double-cycle stitching for reinforced buttonholes
Digital control panel with pattern memory
Automatic functions: thread trimming & presser foot lifting
LED lighting for better visibility
