... dual-axis, 4-axis, 8-axis,2-axis,16-axis etc. Features: 1. Automatic PLC digital system control ... the gear and permit readjust to twist. 3. High yield tomerge and to twist of lump sum accomplish ... to twist . 5. With some thread breacking sensor ,auto shut down and keeping memory , and can operate ... repair, long operating life, spare parts available. High speed Merging and Twisting Yar Machine(16Axlie)