Jack A4B – Automatic 1-Needle Lockstitch Machine with Direct Drive
The Jack A4B is a modern 1-needle lockstitch machine designed for professional sewing with automatic functions, bottom feed, and a direct drive motor built into the head. This system ensures quiet operation, energy efficiency, and greater reliability compared to traditional clutch motors.
The machine is equipped with an integrated control panel, allowing easy access to all sewing parameters.
Automatic Functions:
Thread trimming
Presser foot lifting
Backtacking during sewing
Needle positioning
Thanks to a stepper motor, stitch length, backtacking, and presser foot lifting are controlled with precision and low noise. The presser foot lift height can be programmed, and stitch length can be adjusted in 0.1 mm increments. Central lubrication with a traditional oil pan ensures smooth operation and longer machine life.
Technical Specifications:
Sewing speed: up to 5,000 stitches/min
Stitch length: up to 5 mm
Presser foot lift: up to 13 mm
Control buttons near needle bar: 1/2 stitch length, add a stitch, backtacking
The Jack A4B is an efficient and user-friendly solution for workshops and factories requiring speed, durability, and automation in everyday sewing.
