... the yarn in the producing process winding and friction,reduced the damage between silk path to the ... datas:ModelYJ800DSpindles144,168,192,216,240spindlesMax. speed600RPMTwister typelaminated friction discFirst heaterbiphenyl air heating (1.6m)Second heaterbiphenyl ... heating (0.9m, 1m)Cooling rail lengthdia.610mmFriction roller diameterdia 90mmPitch1520mmFiber weight22 - 330 decitexmax.size of original ...