The machine is improved in framework of middle, head-stock, detaching driving method in headstock, nip-plate structure of middle, press-form of detaching, driving-structure of coiler and control-system based on series modle "FA".Used technology of subsection assemble so that it is advaced integrate technology capability. Model CJ25 is used in the cotton comber process for removing the fine impurities and neps having not been eliminated in the carding stage and for separating the short fibers away form the longer ones so as to produce a lustrous combed sliver of good unformity with fiber being much more straightened and laid parallel to each other and further increace the strength of cotten yam .This machine is there foce a necessity for the spining of high count yearns and blends. Head: Baced on head-stock of series Model "FA",consulted structure of foreign comber, it is to be elevate vice-draft driving gear precision and windtight capablity. Middle: Framework is used integer assemble technology similar to Model PX2,nip adopt integer-frame structure, material is aluminum-alloy. Position of detaching-rubber-roller fixed, air-pressure, Model JZX integer-cylinder, Model JZD top-comber. Integer drop neps set. Tail: Draft and colier is like frame. Draft system is 4 over 5 with air-pressure. Coiler is big circle shape with single slive. Main specification: Number of heads: 8 Staffs(mm): 440 Width of lap(mm): 270 Speed(times/min): 185-230 Diameter of cylinder(mm): 150 Diameter of detaching roller(mm): 28 Typ of draft 4 over 5 with air-pressure and double draft rang Type of coiler one can with big circle shape Size of can(mm): 400 x 1100, 500 x 1100, 600 x 1100 Feed weight of lap(g/m): 45-65 feed cotton lengthn (mm): 4.9, 5.2, 5.6, 6.0, 6.5 Pressure of air source(MPa): 0.6 Air-consumption(m3 / h/set): 0.3 Main motor power(kw): 0.8 x 3.5km, 4/16 pole double speed with breaker Brush motor(kw): 1.5 Overall dimension of machine(mm) L x W x H: 6417 x 1782 x 1920