Question

The surface speed of cylinder is

• A. Greater than that of licker in
• B. Lesser than that of licker in
• C. Lesser than that of doffer
• D. Greater than that of doffer but lesser than licker in

Hint:

Remember the speed order in a carding machine: Licker-in>Cylinder>Doffer. This speed differential is essential for fiber transfer and web formation.

Answer 1

The Correct Option is A

In a carding machine, the cylinder rotates at the highest surface speed. This high speed is essential for effective carding action. The licker-in, which initially picks up fibers from the feed, rotates at a considerably slower speed than the cylinder. The doffer, which removes the carded web from the cylinder, rotates even slower than the licker-in. This speed differential between the cylinder and the other rollers facilitates fiber transfer and alignment.

The speed arrangement (from fastest to slowest) is generally: Cylinder>Licker-in>Doffer.