Jack JK-781G High Speed Direct Drive Straight Buttonhole Sewing Machine

Product Description

• Product Name: Jack JK-781G Direct Drive Buttonholing Sewing Machine

• Brand: Jack

• Model Number: JK-781G / JK-781GD

• Machine Type: Computerized Buttonhole Sewing Machine / Industrial Buttonholing Machine

• Stitch Type: Lockstitch Buttonhole

• Condition: New

• Usage/Application: Shirt Buttonholes, Suits, Trousers, Uniforms, Workwear & Apparel Factories

• Suitable Fabrics: Light to Medium Fabrics (Cotton, Linen, Synthetics, Blends)

• Direct Drive Integration: Built-in direct-drive servo motor mounted directly on the main shaft provides smooth operation, precise start-stop control, and up to 70% electricity savings.

• Side-Mounted Digital Control Box: Easy-to-read screen allows operators to quick-set sewing speed, stitch counts, and operation parameters effortlessly.

• Auto Thread Trimming & Cutting: Integrated automatic thread trimmer and precision mechanical knife cut buttonholes cleanly post-stitching, saving manual labor.

• High-Speed & Stable Operation: Runs smoothly up to 3,600 SPM with reduced machine vibration and lower noise output compared to traditional belt-driven models.

• Clean & Uniform Stitching: Optimized thread take-up and tension control produce crisp, neat, and durable buttonholes across all shirt and garment production runs.

The Jack JK-781G is a high-performance direct-drive computerized buttonhole sewing machine designed specifically for shirt and garment manufacturing units. Featuring an integrated direct-drive servo motor and a side-mounted digital control panel, the 781G delivers fast, efficient, and precise buttonhole stitching with maximum energy efficiency.

Ideal for light to medium fabrics, the Jack JK-781G automatically handles thread trimming and buttonhole cutting, significantly increasing daily factory output. Its durable mechanical structure, smooth foot lift mechanism, and low vibration make it a reliable choice for high-volume apparel production lines.