JACK Overlock JK-798TDI

A series of 4 or 5-thread and 2-needle overlocks, equipped with an integrated energy-saving servo motor (Direct Drive system), which guarantees quiet and reliable operation and lower power consumption. Double transport: bottom and top. The upper transport ensures the perfect movement of the upper and lower layers of the sewn materials, eliminates the problem of overcoming transverse stitching and any gussets. JACK Overlock JK-798TDI is designed for sewing medium and heavy materials.

Technical parameters:

  • sewing speed 7000 stitches / min
  • double transport: bottom and top
  • central lubrication
  • integrated LED lighting for the work field
ModelNeedlesNumber of needlesNumber of threadsNeedle gauge (mm)Stitch width (mm)Stitch length (mm)Differential transportPresser foot lift (mm)
JK-798TDI-4-514-A04/435#924246,50,7 - 26
JK-798TDI-5-516-A04/435#14255650,7 - 27

JACK Overlock JK-798TDI

Optimized transport

Overlock series with double transport: bottom and top, designed for sewing medium and heavy materials.

JACK Overlock JK-798TDI

Easy regulation

Thanks to the adjustment of the upper transport, we can quickly and easily adjust the machine to sewn material.

JACK Overlock JK-798TDI


Overlock is equipped with an energy-saving motor integrated in the machine head.

JACK Overlock JK-798TDI

LED lights

Integrated in the machine, no eye-catching LED lighting.