Kolbus ZU 804 gathering machine: to 8,000 cycles/hr. Revolving drum principle with section recognition system, missing section/double section control, cascade control, reject discharge. ZU 832.A gathering machine: to 12,000 cycles/hr. Straight section transport without pre-acceleration, basic unit expandable from 9-33 stations, missing and double section detection, SignaLynx signature recognition. ZU 841 gathering machine: to 18,000 cycles/hr. Straight, direct section transport without pre-acceleration, fewer settings required modular construction.