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Jack

Catalog

Heavy-Duty

Walking foot, post-bed, and unison-feed machines built for upholstery and leather.

7 models

Heavy-Duty machine

  • ISO 9001 certified

    Quality management standard maintained on every machine that leaves the line.

  • Authorized US dealers

    Sales, parts, and trained technicians across the United States.

  • Genuine Jack parts

    Feed dogs, hooks, gauge sets. Original parts traceable to the manufacturer.

  • Industrial heritage

    Decades of continuous machinery development across apparel, denim, and leather.

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What is a heavy-duty sewing machine?

Heavy-duty machines are built for thick, layered, and difficult material — leather, upholstery, webbing, multi-ply denim. They use a walking foot, compound feed, or post bed so the top and bottom layers move together instead of slipping, and a direct-drive servo that holds torque at low speed. This is the family for anything a standard garment machine can't push through.

How to choose a heavy-duty machine

The choice is driven by the feed system and the shape of the work. A walking-foot machine like the JACK Z7 suits flat and layered leather and upholstery. A compound (unison) feed like the 2060 grips the hardest layered seams — webbing, harnesses, thick upholstery — because the needle, foot, and feed dog move as one. A post-bed machine like the S7 reaches around three-dimensional pieces: boots, structured bags, gussets. Match the feed to your material and the bed to your shape, then confirm the rated thread size and presser-foot lift clear your heaviest joint.

Leather machines →Upholstery machines →Bags & webbing machines →Compare brands →Glossary →

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Each family covers a different production task. Pick the one that matches the work.