The Jack JK-N9 is a next-generation Computerized Industrial Buttonhole Machine engineered to accept all fabric materials seamlessly without stopping for style changes. Powered by $0^\circ$ Thread Path Technology and Smart Rhino Feeding, it drastically reduces thread tension resistance by 30% while boosting thread loop stability by 80%. Designed with micron-level motor precision across the main shaft, swing needle, and feeding motors, the Jack N9 delivers high sewing stability and increases overall production efficiency by 7.5%+. It is the ultimate buttonhole seaming solution for everything from sheer swimwear, silk shirts, and knitwear to heavy down jackets and thick sweaters.
Key Features
$0^\circ$ Thread Path Ceramic Technology
Smart Rhino Feeding System
Micron-Precision Motor Control
Large Vertical Smart Touch Panel
7.5%+ Output Efficiency Boost
$120\text{ mm}$ Long Buttonhole Capability (N9-12-D Model)
Technical Specifications
| Operation Type: Automatic / Computerized Direct Drive |
| Max Stitch Length: Buttonhole Size: $25 times 4text{ mm}$ (N9-D), $41 times 5text{ mm}$ (N9-H-D), $120 times 5text{ mm}$ (N9-12-D) |
| Max Tack Stitches: Digitally Programmable Buttonhole Patterns |
| Needle System: DPx5 (11# for Light/Knits, 14# for Heavy, 12# for Shirts) |
| Max Speed: Up to 4,200 S.P.M. (Rated 3,000–3,600 S.P.M.) |
| Application: Universal Fabric Adaptability (Polo Shirts, Knits, Swimwear, Down Jackets, Sweaters, Workwear) |
| Bed Type: Flat Bed Industrial Machine Head |
| Hook Type: High-Precision Rotary Hook System |
| vLubrication: Automatic Centralized Dry / Semi-Dry Oil Control System |
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