the crusher unit was 148 tons / day with a total size of 20-30 mm is 52,59%, size 10-20 mm is 26,16%, size 5-10 mm is 13,95%, and size <5 mm (ash stone) is 7,3%. The evaluation results of the conditions in the study of the initial primary jaw crusher setting were 27 tons / hour, secondary jaw crusher 16.875 tons / hour, and tertiary jaw crusherWeb