A revolving flat card for processing fibers, - including a cylinder having a cylinder axis, a cylinder diameter, a cylinder surface, and a cylinder rotational direction, and - including a licker-in, having a licker-in axis and a licker-in diameter, situated on the circumference of the cylinder, and - including a doffer, having a doffer axis and a doffer diameter, situated on the circumference of the cylinder, and - including a revolving flat unit situated on the circumference of the cylinder, - wherein a fiber transport direction is determined by the cylinder rotational direction in the direction from the licker-in to the doffer, and - wherein the revolving flat unit is situated between the licker-in and the doffer, and is situated after the licker-in, viewed in the fiber transport direction, and - wherein a precarding zone is situated between the licker-in and the revolving flat unit, and a postcarding zone is formed between the revolving flat unit and the doffer, - wherein the cylinder axis and the licker-in axis lie in a licker-in plane, and the cylinder axis and the doffer axis lie in a doffer plane, and - wherein a carding length is determined by a partial circumference of the cylinder surface between the licker-in plane and the doffer plane in the fiber transport direction, characterized in that - the carding length is greater than 3000 mm, - the licker-in plane and the doffer plane, starting from the licker-in plane viewed in the fiber transport direction, enclose an angle (α) of greater than 305°, and - the licker-in plane in the fiber transport direction encloses an angle (β) of 0° to 20° with respect to a perpendicular plane through the cylinder axis. - including a cylinder having a cylinder axis, a cylinder diameter, a cylinder surface, and a cylinder rotational direction, and - including a licker-in, having a licker-in axis and a licker-in diameter, situated on the circumference of the cylinder, and - including a doffer, having a doffer axis and a doffer diameter, situated on the circumference of the cylinder, and - including a revolving flat unit situated on the circumference of the cylinder, - wherein a fiber transport direction is determined by the cylinder rotational direction in the direction from the licker-in to the doffer, and - wherein the revolving flat unit is situated between the licker-in and the doffer, and is situated after the licker-in, viewed in the fiber transport direction, and - wherein a precarding zone is situated between the licker-in and the revolving flat unit, and a postcarding zone is formed between the revolving flat unit and the doffer, - wherein the cylinder axis and the licker-in axis lie in a licker-in plane, and the cylinder axis and the doffer axis lie in a doffer plane, and - wherein a carding length is determined by a partial circumference of the cylinder surface between the licker-in plane and the doffer plane in the fiber transport direction, characterized in that - the carding length is greater than 3000 mm, - the licker-in plane and the doffer plane, starting from the licker-in plane viewed in the fiber transport direction, enclose an angle (α) of greater than 305°, and - the licker-in plane in the fiber transport direction encloses an angle (β) of 0° to 20° with respect to a perpendicular plane through the cylinder axis.