... limit reduced the yarn in the producing process winding and friction,reduced the damage between silk path to the silk , ... ,and can choose 6mm and 9mm two type of friction disk,is suitable for different type of fiber 4. ... overlapping.Main datas:ModelYJ800DSpindles144,168,192,216,240spindlesMax. speed600RPMTwister typelaminated friction discFirst heaterbiphenyl air heating (1.6m)Second heaterbiphenyl air ...