1. The machine is equipped with a single dust cage to absorb cotton, which forms a single-layer cotton fleece so as to eliminate the tear and sticky-layer of lap.

2. The speed of pedal roller is adjusted instantly and quickly by an autoleveling system to controI motor speed, thus an even cotton feed can be obtained.

3. As the machine has been equipped with a pneumatic filter, an underground dust room is not needed.

4. The machine is equipped with a lap gradual pressure device, which can avoid the tight layer in inner lap but loose layer in outer lap.

5. An automatic storeroom for 40 lap rods was set up near the lap roller. the lap rod can be changed in very short time.