JAM JT908C 3-Needle Lap Seam Machine with Vacuum Chain Trimmer

The JT908C automatic unit is purpose-built for high-quality lap stitching on thick and medium-weight materials such as denim, workwear, and technical fabrics. Featuring a three-needle ¼" (6.4 mm) gauge feed-off-the-arm chain stitch head driven by an upper-shaft direct-drive motor, it ensures smooth power transmission, reduced vibration, and consistent seam quality. To handle demanding applications, the JT908C is equipped with additional pump lubrication and oil cooling, needle cooling, and a pneumatic presser foot with an intelligent material thickness sensor. Dual, independently controlled pneumatic pressures for the presser foot and puller maintain optimal fabric control, while the electronic puller—synchronized with the feed dog—keeps alignment and stitch length constant across varying speeds and fabric thicknesses. For process efficiency, the machine provides initial and final chain trimming, with trimmer deactivation along the seam to ensure uninterrupted stitch formation. A dedicated vacuum system at the arm end removes chain remnants, leaving seams clean and production-ready. Together, these features make the JT908C a robust, precise, and highly automated solution for professional lap seaming operations.