This machine is a high speed compound feed with walking foot, lock stitch sewing machine. It is equipped with a double-capacity horizontal-axis hook, semi auto lubrication system, heavy duty feeding and a belt transmission. The climbing device mechanism ensures machines stitch multi-layer materials easily and smoothly while keeping the noise to a minimum and simple maintenance. Suitable for sewing medium and heavy weight materials, such as chaps, bags, suitcases, upholstery and lighter leather work.