The JACK H6L-CZ-4 is a computerized industrial lockstitch machine designed for sewing heavy materials, including leather, canvas, bags, cushions, and upholstery. Its extended long-arm design provides additional working space, making it suitable for handling large and bulky sewing projects.
The machine features synchronized top and bottom feeding to ensure consistent material movement and accurate stitch formation. Its digital stitch adjustment system, controlled by a stepping motor, allows precise stitch-length adjustment and programmable decorative sewing patterns. The integrated 750 W Direct Drive servo motor delivers powerful and energy-efficient performance.
Automatic functions include thread trimming, electric presser-foot lifting, needle positioning, and digital start/end bartacking.
Key Features
Single-needle, two-thread industrial lockstitch machine
Long-arm design with approximately 14.4-inch working space
Synchronized top and bottom feeding system
Integrated 750 W Direct Drive servo motor
Digital stitch-length adjustment
Maximum stitch length: up to 10 mm (catalogue specification)
Maximum sewing speed: 2,200 stitches per minute
Automatic electric presser-foot lifting
Automatic thread trimming with short thread remaining
Digital start and end bartacking
Programmable decorative sewing patterns
Needle system: DP×17, sizes #20–#23
Suitable for leather, canvas, bags, cushions, and upholstery
