Two-layer conveyor elbow with a highly wear-resistant CCI inner elbow and a pressure-bearing outer elbow. Elbow extensions also lined with CCI. Inlet and outlet protected by CCI Big Mouth weld ends. The wear layer has a hardness of 67 HRC. The ESSER TWIN 900 series is designed for high massive wear. This elbow has been specially developed for mast bushings. The wing wheel prevents the delivery line from bumping in the pivot joint of the mast arms.