Upholstery means thick, layered, often slippery material — vinyl, foam-backed fabric, canvas, leather — sewn in long runs and around bulky panels. The machine has to feed all the layers together and clear the seam intersections, which is why upholstery floors run walking-foot and compound-feed machines, frequently with a long arm for handling large pieces. JACK's heavy-duty family covers this work. The Z7 is a single-needle AI walking foot, the H2 and H7 are top-and-bottom feed walking-foot machines, and the 2060 is an automatic compound walking foot for the heaviest layered seams. Direct-drive servo motors give the low-speed torque to push through foam-backed material without stalling, and a generous foot lift clears thick assemblies. For furniture, marine, and automotive interior work, the right machine is a question of how thick and how layered your seams get. The heavy-duty machines an upholstery shop runs are below, with full specs.
What to look for
Compound or unison feed
The strongest grip on thick, foam-backed, or vinyl layers — needle, foot, and feed dog move as one so nothing creeps on long seams.
Generous foot lift
Upholstery seams cross thick intersections; a high presser-foot lift clears layered assemblies and welting without forcing the work.
Low-speed torque
A direct-drive servo holds power at the slow, controlled speeds upholstery often needs, so the needle drives through foam-backed material cleanly.
Arm space for big panels
Large furniture and marine panels need room to the right of the needle; a longer arm makes bulky pieces manageable.
