This professionally refurbished JACK industrial flatlock (interlock) sewing machine head is paired with a brand-new table, motor, and stand. Extensively serviced, timed, and calibrated to factory specifications, the flatlock machine utilizes a multi-needle, looper-thread configuration to produce highly elastic, flat-seamed covers or joins. It is engineered specifically for working with stretch, knit, and athletic fabrics without creating bulky seams or causing structural tunneling.

The machine head is mounted onto a new high-density, vibration-absorbing industrial tabletop supported by a heavy-duty, adjustable steel H-leg stand. Driving the system is a new-generation electronic servo motor, which delivers silent operation, adjustable speed customization, and high needle penetration torque while reducing energy consumption compared to traditional clutch motors. This complete workstation is optimized for high-volume manufacturing of sportswear, underwear, swimwear, and athleisure garments.