Functions: 1) Automatic widening 2) Automatic expanding (while widening) 3) Automatic shortening (while hand narrowing) 4) Automatic changing yarns with two colors 5) Automatic changing knitting speed 6) Automatic stopping knitting for coarse knots and ending out 7) Automatic counting to stop knitting (the middle or side stop position can be set) 8) Automatic drawing and rolling (select device)Features and specifications: 1) Needle bed width: 36 - 42", 44 - 52", 52 - 56" 2) Six (from 1 to 6) adjustable speeds can be selected depending on different knitting materials, knitting width and technology requirements 3) The frame head can reverse at lower speed automatically while converting, so the impulsive force is slowed down to the greatest extent 4) If you use our machines, you can lower 70% labor intensity for the workers, improve 20 - 30% labor productivity and product quality is visibly optimized 5) The technological program is simple and easy to learn. There are 40 technological programs in the internal memory and external card memory is equipped. You can directly recall saved programs