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Jack A4C-C - Power Saving, Direct Drive, lockstitch Machine. One Day, One Threading — Powered by NTB System. Revolutionize your sewing experience with the Jack A4C, engineered for precision, speed, and smart automation. At the heart of this advanced machine lies the NTB System, a breakthrough technology designed to deliver unmatched threading efficiency and fabric control.

NTB System: Intelligence Meets Precision

Driven by the cutting-edge Octopus Nine-Brain AI Chip, the NTB System analyzes over 200,000 fabric samples with a blazing 10,000 calculations per second. This high-speed processing delivers the optimal fabric-feeding force in real time, perfectly synchronized with other core mechanisms.

Through intelligent coordination of thread-taking, thread-catching, and fabric-feeding, the NTB System ensures seamless operation with exceptional stitch quality—even at high speeds.

Octopus Nine-Brain AI Chip

This powerful AI engine constantly learns and adapts to fabric types, ensuring flawless fabric feeding and stitch formation. It’s like having nine brains optimizing every move—making adjustments on the fly to maintain performance and consistency.

0-Degree Thread Path Technology

Exclusive to Jack, this innovative threading system reduces thread tension by up to 30%, enabling precise thread handling and catching. The linear, friction-reducing thread path ensures smoother operation, less breakage, and longer thread life.

Technical Specification

Product Attachments

Jack A4C - Brochure.pdf