Abstract: In order to separate tobacco satisfactorily, a pneumatic tobacco reclaiming unit was designed in TOBSPIN cutter, wherein tobacco was automatically separated and recycled by means of opposite-blow air. The unit was mainly composed of a zigzag air filter assembly, a pneumatic triplet, a central shaft, an opposite-blow air tube and a speed reducer. The 15 filter rods in original reclaiming unit were replaced by the zigzag air filter. Driven by compressed air, the central shaft and opposite-blow air tube rotated to blow the tobacco adhered to the air filter from the opposite side and forced it away from the filter. The results showed that the modification effectively solved the problem of frequent machine shutdown caused by tobacco jam in filter rods. During six-month running, the machine shutdown decreased from 82 times to 0, the number of damaged compression bands reduced from 153 to 0, tobacco waste decreased from 694.5 kg to 0, and production cost of 358.4 thousand RMB yuan was saved. The machine efficiency is promoted.