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JACK® C7-4-M03/333 – 4-Thread AI Overlock Machine – Complete Setup, Table & Stand Included
Authorized JACK Distributor
Supra Sewing — USA's #1 Direct Distributor
Factory-direct authorized dealer · Since 2023
- Condition:
- New
- Shipping:
- Free Shipping assembled in the USA!*
JACK® C7-4-M03/333 – 4-Thread AI Overlock Machine – Complete Setup, Table & Stand Included is backordered and will ship as soon as it is back in stock.
Frequently asked
Does it arrive assembled?
Yes — we assemble, calibrate and test-stitch it in Miami before shipping. To protect the machine during freight, the head ships detached from the table; remounting takes minutes and we can walk you through it by phone.
Can I finance it?
Yes. You can split your purchase into monthly payments with Affirm (checking your rate takes seconds and won't affect your credit score), and Synchrony offers special financing on qualifying purchases (subject to credit approval). See your options on the financing page.
Warranty & support?
Yes — on top of the manufacturer's warranty, Supra Sewing backs your machine with our own coverage: 90 days on mechanical defects and 12 months on electrical & electronic parts (18 months on Speedway machines), serviced by our in-house techs in Miami, FL. Support in English & Spanish: +1 (954) 681-3894 or WhatsApp.
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Description
Description
The JACK® C7-4-M03/333 is an AI-powered 4-thread overlock machine designed for professional garment production. Part of JACK's C7 Urus A.M.H. series, it automatically senses fabric properties in real time — adjusting feeding, pressure, and tension without manual intervention — delivering consistent, production-ready seams across knits, wovens, and denim. This complete setup includes the machine head, 550W direct drive servo motor, industrial table, and stand, ready to run from day one.
What's Included
- JACK C7-4-M03/333 4-thread AI overlock machine (ships assembled)
- Fully submerged industrial sewing table
- Industrial stand with motor mount
- 550W direct drive servo motor
- LED work lamp
- Standard accessories kit
- Instruction manual
Key Features
- A.M.H. AI Technology — three operating modes (Manual, Semi-Automatic, Fully Automatic) with real-time fabric sensing
- Full Speed Feeding System — continuously balances pressing and feeding forces at any speed for even seam quality
- Smart Presser Foot — detects pressure changes 32,000 times per second with 0.00006 microsecond response time
- Smart Rhino Feeding — 9.2 Nm super torque with degree-by-degree feeding control for consistent stitch quality
- Automatic thread trimmer, foot lifter, reverse, and needle positioner
- Maximum speed: 7,000 SPM
Ideal For
- High-volume garment manufacturing requiring AI-driven consistency
- Knitwear, activewear, and stretch fabric production lines
- Factories transitioning from manual to automated overlock operations
- Operations requiring consistent seam quality across varying fabric weights
Specifications
| Specification | Detail |
|---|---|
| Machine Type | 4-Thread Overlock / Serger |
| Needle System | DCx27 / B27, Size #9–16 |
| Number of Needles | 2 |
| Motor | 550W Direct Drive Servo Motor |
| Drive Type | Direct Drive |
| Max Speed | 7,000 SPM |
| Stitch Width | 4 mm |
| Stitch Length | 0.8–3.8 mm |
| Differential Ratio | 0.7–2.0 |
| Presser Foot Lift | 10 mm |
| Feed Type | Drop Feed |
| Construction | Flatbed |
| AI Technology | A.M.H. (Automatic Material Handling) |
| Lubrication | Automatic |



