long needle for upholstery

In China, heavy duty sewing machines are used in a variety of industries, including clothing manufacturing, upholstery, and automotive upholstery. These machines are capable of stitching through multiple layers of thick fabric, leather, and even denim, making them ideal for heavy-duty projects.

A serger machine, also known as an overlock machine, is designed to stitch and finish the edges of fabric in a single pass. Unlike traditional sewing machines, sergers use multiple threads to create a secured seam and can simultaneously trim excess fabric. This unique functionality not only saves time but also enhances the quality of the final product, making sergers an essential tool for anyone serious about garment construction or fabric crafting.

Heavy-duty mechanical sewing machines are built with robust materials and components. They often feature a metal frame that provides stability and reduces vibrations during operation, ensuring precise stitches. The heavy-duty presser foot is another key element; it exerts more pressure on the fabric, allowing for smooth feeding of multiple layers and thicker materials without skipping stitches. These machines typically come with a range of stitch options, including straight stitch, zigzag, and specialized stitches like bar tacks, which are frequently needed in heavy sewing projects.