Jack A4S-7H Direct Drive (UBT) Lockstitch (7MM) Heavy Weight

Jack A4S-7H Industrial Sewing Machines

Speaking Computerized Heavy Duty 7mm Stitch Lockstitch Machine

Innovative automatic 1-needle lockstitch machine equipped with an integrated energy-saving motor mounted in the head, directly on the main shaft of the machine (DIRECT DRIVE system), which guarantees quiet and reliable operation and lower power consumption.

Automatic functions

• thread trimmer
• needle positioning
• auto bartacking option
• sewing parameters programming
• auto presser foot lifter

Bottom feed transport. Designed for sewing light and medium materials (A4 version) and heavy (version A4-H). The modern design of the JACK lockstitch A4 machine provides better ventilation of the engine, what enable faster and more efficient working, as well as a longer machine life. The improved construction of the transport system and pressure a fabric, ensures the increase of the fabric thickness range.

Technical parameters

• sewing speed: up to 5000 stitches / min
• stitch length: up to 5 mm (up to 7 mm for A4-7 and A4-7H)
• presser foot lift: 5-13 mm
• central lubrication
• needle system: DBx1 (A4 and A4-7), DPx5 (A4-H and A4-7H)
• two additional function buttons located next to the needle bar
• USB port for copying data from the machine and connecting external devices