This machine has three needles's path, it can weave 3:1,2:1 twill and tabby. It is more change and wider use, be used to produce series of sportswear,sanitation wear,sleepwear,infant wear and keep out cold clothings. Machine's Spec: CYLINDER DIA.:30"-34" FEEDERS:90-102 GUAGE:18G-20G Horsepower:3.75 Rotate speed:20-30 The yarn,frame of cloth and splace between two needles all can influence speed. Please choose right the best speed to suit this machine