Lockstitch with digital stitch adjustment, silent digital bartack and step motor that can make stitching motifs. Automatic thread trimmer, presser foot lifter, digital bartack and short thread trimming. Oil pan detached.

Jack A4S Oil Pan

Digital Stitch Length

The stitch length can reach 0.1mm controlled by a stepper motor. The stitch length adjustment lock function has also been introduced.

High Precision Overlap

The overlapping of the stitches can be done very precisely in all stitch lengths. Digital bartack function available.

Jack A4S is suitable for all different types of materials
Jack A4S Oil Feeding Reminder

Sewing Pattern

You can create beautiful ornamental stitches, thanks to the alternating stitch length and repetitions. They can also be modified according to different needs.

Silent Bartack

Thanks to the structure of the stepper motor for electronic bartack, noise has been drastically reduced: this allows you to work in a quieter and more comfortable work environment.

Jack A4S Bird Nest Prevention
Jack A4S Semi Dry Head

Short Thread

You no longer need to cut the remaining thread: this avoids the risk of ruining the work and saves time and money. In addition, the machine also allows you to activate the initial and / or final condensation stitch to avoid the unraveling of the seam.

Voice Guide

Using the machine, it will teach you the various functions itself, if there are any errors it will notify you and by clicking on the VOICE button it will suggest how to solve the problem.

Jack A4S Bird Nest Prevention

Industry 4.0 (Optional)

Thanks to the integrated WIFI module you can modify the parameters and control the productivity of the machine directly from the application. NB: a Jack gateway must be purchased for every 50 machines