Touch Screen Panel
The software allows you to create buttonholes and program their repetition; you will find 31 preset sewing patterns and up to 500 patterns in total; in addition, the USB port allows you to import designs, update software, and charge/power external devices.
Integrated Control Box
Small and compact design with no external wiring ensures easy installation and transportation.
Stepping Motor
Fabric feeding, needle movement, and the buttonhole cutter knife are controlled by a built-in stepping motor, making the sewing process more accurate and quiet, without vibration, and saving energy.
Semi-Dry Head
Oil-free machine head design with a semi-dry rotary hook to prevent fabric staining.
Gimp Stitching
Allows for gimp stitching along the buttonhole, which is especially useful when working with stretchy fabrics.
Built-In Cooling Fan
The cooling fan can significantly reduce temperature and extend the service life of the machine.
Multiple Cutting and Continuous Sewing
Multiple cutting allows you to cut long buttonholes without changing the knife, and continuous sewing allows you to make multiple buttonholes in a row or 120 mm buttonholes in model 1792.
Electronic Thread Tension
Set different tension for each edge of the buttonhole and save them in 2 different preset values, which will prevent fraying or thread breakage. Also great for those who want a two-tone yarn effect.
Advanced Automatic Bobbin Winder
A knife has been added to quickly trim the thread and hold it after trimming so it’s always ready for use.
Industry 4.0 (+)
Thanks to the built-in Wi-Fi module, you can change settings and monitor machine performance directly from the app. (Optional) Note: A Jack gateway must be purchased for every 50 machines.
Jack JK-T1791GS-D 70MM is an electronic lockstitch buttonhole machine with an extended buttonhole length of up to 70 mm. A computerized machine featuring a semi-dry head for clean seams. Equipped with a multiple-cutting function, it supports 30 standard buttonhole types (including eyelet buttonhole simulation), buttonhole programming, and gimp stitching. The cooling system extends the machine’s service life.
Technical Specifications
| Model | Jack JK-T1791GS-D 70MM |
| Functions | Knits Materials |
| Button Hole Size (mm) | 70×5 |
| Needle | DPx5 12# |
| Number of Needles | 1 |
| Side Cutter Function | 1/4″ ~ 1-1/4″ |
| Number of Threads | 2 |
| Parallel Interspace (mm) | 0.2 – 2.5 |
| Presser Foot Lifter Height (mm) | 17 |
| Max Speed (S.p.m) | 4200 |
| Volume (mm) | 880x390x635 |
| Weight (kg) | 66/78 |
