The Jack JK-S7-92 sewing machine is a high-end industrial post-bed lockstitch sewing machine designed for precise stitching of 3D, curved, and hard-to-reach areas. It is widely used in industries such as footwear, bags, leather goods, and upholstery, where flatbed machines cannot perform efficiently.
This model is part of Jack’s advanced S7 series, offering upgraded stability, smoother feeding, and improved automation features compared to standard post-bed machines. It uses a roller presser foot with compound feed system (needle + bottom + roller) to ensure consistent stitching even on thick or layered materials.
Equipped with a direct-drive servo motor, the machine delivers quiet operation, low vibration, and excellent energy efficiency for continuous industrial use.
Key Features
Post-bed (column type) design for 3D sewing
Compound feed system (needle + bottom + roller feed)
Direct-drive servo motor (low noise & energy saving)
Automatic functions (thread trimming, presser foot lift, needle positioning)
Smooth feeding on leather and heavy materials
LED lighting for better visibility
High stability and reduced vibration
Suitable for curved and narrow sewing areas
