Product Details
Upper and Lower Thread Breakage Switch for Nylon Zipper Sewing
Machine
The Upper and Lower Thread Breakage Switch is a precision spare part designed for nylon zipper sewing
machines. It detects thread breakage on the upper or lower thread
during sewing operations and immediately stops the machine to
prevent defective stitching. Manufactured from high-quality,
durable materials, it provides reliable performance, long service
life, and ensures consistent stitch quality in industrial zipper
production.