1. The character of this machine is that there is only one beater assembled, which diameter is 750 m/m. Due to the big diameter, the period for the tuffs to stay on it is longer and the quantity of dropping cotton is more, so that the effect of removing dust is excellent.

2. The tufts are through the inlet Duct into the housing, counterly rotates against downwards around the pegged beater following the air stream and is thrown upwards after touching the Grid, which is the first time. Due to the action of the Guide Plate, the cotton tufts rotates screwedly and then, rotates downwards with the air stream, which circulation keeps continuously seven times. The cotton tufts will leave out through the Outlet Duct after seven times of opening and cleaning.