JACK A4C Auto
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AI-driven fabric handling with Octopus Nine-Brain NTB System
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Fully automatic thread trimming, foot lift, and back-tacking
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High speed up to 5,000 stitches/min with energy-efficient direct-drive motor
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0-Degree Thread Path for reduced tension and fewer thread breaks
Product Description
The Jack A4C is a next-generation fully automatic industrial lockstitch sewing machine designed for professional tailoring, garment factories, and high-volume production environments. Powered by Jack’s advanced NTB System with the Octopus “Nine-Brain” AI chip, this machine intelligently adjusts fabric feeding and stitching parameters in real time for superior stitch quality and reduced thread breakage — even at high sewing speeds.
Built for efficiency and ease of use, the A4C features a direct-drive energy-efficient motor, 0-degree thread path technology, and a suite of automatic functions such as thread trimming, presser foot lift, needle up/down positioning, and reverse/back-tacking. These automation features help streamline workflow, reduce manual intervention, and enhance productivity in industrial sewing operations.
The machine also includes ergonomic improvements like LED work lighting, stepper motor control for precise foot lift and reverse, and voice feedback options for intuitive operation. With its robust build and smart automation, the Jack A4C is ideal for sewing a variety of fabrics — from lightweight cotton to medium-weight synthetics — with consistent, high-quality results.
Key Features & Benefits
🚀 Intelligent AI-Driven NTB System
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Octopus “Nine-Brain” AI chip analyzes fabric behavior in real time for optimized feed and stitch consistency.
🧵 Full Automatic Functions
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Automatic thread trimming, auto presser foot lift, back-tacking, and needle up/down control — minimises manual steps and speeds up production.
⚡ High Performance & Efficiency
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High sewing speed up to 5,000 stitches per minute with smooth, balanced stitching.
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Direct-drive motor for quiet, low-vibration, and energy-efficient performance.
🔧 Modern Usability Enhancements
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0-Degree Thread Path Technology reduces thread tension up to 30% for fewer breaks and better handling.
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LED lighting and optional voice guidance improve visibility and ease of operation.
Technical Specifications
| Specification | Details |
|---|---|
| Model | Jack A4C / A4C-C |
| Machine Type | Single-Needle Fully Automatic Lockstitch |
| AI Control | NTB System + Octopus “Nine-Brain” AI Chip |
| Motor Type | Direct-drive energy-efficient motor |
| Automatic Functions | Thread trimming, foot lift, back-tack, needle up/down |
| Max Sewing Speed | Up to 5,000 stitches/min |
| Stitch Length | Up to 5 mm |
| Presser Foot Lift | 5 – 13 mm |
| Needle System | DBx1 (#11–18) |
| LED Work Light | Yes |
| Suitable Fabrics | Thin to medium-weight materials (cotton, synthetics, denim) |
| Size & Weight | 695 × 295 × 550 mm, ~36–42 kg |
Ideal Uses
✔ Garment factories and mass production lines
✔ Tailoring shops and professional studios
✔ Projects requiring high productivity and stitch quality
✔ Sewing light to medium-weight fabrics with automated features
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