Specifications: Main Features: ●The drafting adopts three-up and three-down pressure rods including two optional types of the fixed under-supported one and intermittent rotative one. The intermittent rotative pressure rod can clean the dust on the rod automatically, and the structure of the under-supported pressure rod is simple and does not collect dust. The drafting is suitable for the most fibers such as 22-76 millimeters cotton, cotton type chemical fiber and the pure weaving and the blended spinning of the medium and long fiber for the high quality yarn. ●Adopt cradle spring to pressurize, no adjustment when pressurizing, and the pressure is stable and reliable. ●Draft drive adopts synchronous belt and gear wheel, and all gears fixing the center distance bathed in oil make the machine run smoothly at high speed with low noise. ●The coiler adopts the cochleoid pipe, it is suitable for the high speed and good molding. ●The up clean adopts the intermittent rotative velvet strip, while the down clean adopts the reciprocating swing leather ring. Both cleanings are effective. ●The wind paths are reasonably designed, the up and down wind indrafts are adjustable. The bus bar mode has overhead active feeding. The self-stop of breaking is sensitive and reliable. ●The main motor adopts double-winding tow-speed motor, the speed switches to high-speed operation from the low speed transmission automatically and smoothly. The condense brake lightens the shock and shuts down the machine swiftly and smoothly. It reduces the influence on the uniformity when turning on/off. ●The gear shift of the total draft adopts the gear shift of fixed center distance, it is precise in transmission and easy to operate. ●It adopts the dimension and floor design of the A272 drawing frame and especially suitable for the improvement and replacement of the old A272 series.