Two-for-one twisting machine for the processing of the second twist of sewing threads.
The assembled yarn, obtained from the first step (CU 1), is now twisted, in the opposite direction of the single ends of which it is made. The machine is equipped with spindles for cops model DT 140N for the 1,5 kg (3lb.) flanged bobbin, and spindles for bobbin model NT 180 for the 3 kg (6 lb.) flanged bobbin.