with a closed lubrication system and shorter thread trim (3mm)

JACK Lockstitch A5

Jack Lockstitch A5 is the latest lockstitch machine equipped with an integrated, energy-saving Direct Drive motor mounted in the machine head directly on the main shaft. The engine guarantees reliable and quiet operation. Machine head equipped with smart and easy to operate operation panel with voice guide (language: english, chinese) and 3-level shinning LED light, make it more convenient for work and reduce visual fatigue.

Automatic functions: 

  • auto thread trimming
  • needle positioning
  • auto bartacking option
  • auto presser foot lifter
  • electronic thread tension are equipped as standard

The machine does not have a typical oil sump. A small amount of oil is in a closed oil container to prevent contamination. Thanks to this solution, we guarantee reduced oil consumption and better lubrication.

Made of carbon needle bar also does not have lubrication prevent from stain and keep fabric clean.

End sewing remaining thread is short within 3mm, auto bartacking avoid loose stitch, no need to cut remaining thread, save time and cost.

Technical parameters: 

  • sewing speed: up to 5000 stitches / min
  • stitch length: up to 5 mm
  • presser foot lift: 5-13 mm
  • needle system: DBx1
  • two additional function buttons located next to the needle bar
  • USB port for ripping data from the machine and connecting external devices


A5-N is a lockstitch machine equipped with bird nest device and pneumatic or electronic suction device.

No Loose Threads
No “Bird’s Nest” at the beginning of sewing, the remaining end of the thread stays within 3mm.
Clean And Durable
The needle bar is made of a special carbon alloy, it does not need lubrication. A closed lubrication system guarantees lower oil consumption and better lubrication of the mechanisms.
Coaxial Driving
Reduces the start moment of sewing, thanks to that, sewing is quieter and more stable.
Oil Level Sensor