The Jack W4-UT-01GB is part of the modern series of 3-needle interlock machines with a flat bed, specifically designed for high-precision sewing of knitwear and stretch fabrics. Equipped with an energy-efficient Direct Drive motor mounted in the head, this machine guarantees quiet, reliable operation while consuming less power compared to traditional motor systems.
Key Features:
Versatile Interlock Functions: Ideal for rolling up hems in blouses and knitwear, bind stitching, overlock stitching, decorative stitching, and a wide range of other sewing operations. One machine can perform plain seams, tape binding, cover seam sewing, and bottom hemming with optional accessories, allowing fast process switching.
Automatic Functions: The W4-UT-01GB version includes fully automatic features such as upper and lower thread trimming, needle positioning, and a high-lifting presser foot up to 7 mm. Thread trimming is precise, extends scissors service life, and improves operational efficiency.
Differential Feed System: Bottom differential transport ensures smooth, high-quality stitching even on difficult fabrics such as Lycra, maintaining consistency across varying material thicknesses.
Integrated Control Panel and Voice Guide: The built-in control panel in the machine head enhances usability. The automatic version is also equipped with a voice notification system that guides the operator and provides alerts in case of errors.
Energy-Efficient Direct Drive Motor: The Direct Drive system ensures lower energy consumption, quiet operation, and minimal maintenance compared to conventional clutch motors.
LED Work Area Lighting: Adjustable three-level LED lighting ensures optimal visibility of the sewing area, reducing eye strain and improving stitch accuracy.
Plug-and-Operate Design: Fully integrated mechanical and electrical systems allow immediate operation with a single plug, simplifying setup and improving workflow efficiency.
Technical Specifications:
Needles: #11 / #14
Number of Needles: 3
Number of Threads: 5
Needle Gauge: 5.6 mm / 6.4 mm (optional gauges available)
Stitch Width: 1.5 – 4.5 mm
Differential Transport: 0.65 – 1.3
Presser Foot Lift: up to 7 mm
Sewing Speed: up to 5,500 stitches/min
Applications:
The Jack W4-UT-01GB is perfect for professional production environments requiring high-speed, precise interlock sewing for garments, lingerie, athletic wear, and other knit fabrics. Its versatility, energy efficiency, and advanced automatic features make it an ideal choice for high-volume production lines.
