This machine is widely used for overlock operations on various fabrics such as clothing, underwear, bedding, thin packaging, and leather products, with multiple stitching options available. The tension of the cylinder can be adjusted to sew a good whole sample, with a maximum sewing speed of 8500 revolutions per minute, achieving high-speed sewing and improving production efficiency. The built-in needle bar prevents oil leakage, and the parts adopt wear-resistant design, which is more wear-resistant and durable, reducing maintenance rate and cost. The front and rear adjustment of the double ring looper and the front and rear adjustment of the upper looper can be simply adjusted with the regulator, saving the time required for maintenance.