Ordinary single-sided knitting large circle machine has a large number of loops (usually 3 to 4 times the diameter of the needle cylinder, that is, 3 routes/25. 4mm ~ 4 routes/25. 4mm), such as 30 "single-sided machine with 90F ~ 120F, 34" single-sided machine with 102 ~ 126F, etc., high speed and high output. It is called multi-triangle machine in some knitting enterprises in China (mainly Z241 type). Ordinary single-sided knitting large circular machine has single-needle track (one runway), two-needle track (two runways), three-needle track (three runways), four-needle track and six-needle track models. The four-needle single-sided large circular machine is mostly used in knitting enterprises. It uses the organic arrangement and combination of knitting needles and triangles to knit various new fabrics. HM single-sided dissecting machine is developed on the basis of single-sided machine and dissecting machine. It has the characteristics of single-sided machine, and has the characteristics of no crease in the roll of dissecting machine. The company combines the knitting principle and ergonomics, aesthetic point of view of the development of a new generation of knitting machine. HM single-sided cutting machine uses computer three-dimensional aided design (CAD) and computer aided analysis (CAE) to carry out gear static analysis and transmission simulation, which reduces the defects in gear design and manufacture, makes the machine run more smoothly, the performance is better, and the weaving is more professional and precise. Important parts are manufactured by advanced machining centers to improve the precision and accuracy of parts, and the positioning between parts of the heart part is adopted. The main structural parts adopt advanced surface treatment technology, which greatly improves the surface quality, hardness and anti-corrosion and anti-rust level.