Mubikorwa byo gukora no gutunganya imashini, cyane cyane mubice byimashini zo gujanjagura no gutondekanya, mantle iremereye yo gucukura amabuye y'agaciro igira uruhare runini mu kwemeza imikorere myiza no kuramba. Mantle ni urwego rwo kurinda rutwikiriye cone ya crusher, bigira ingaruka mu buryo butaziguye ubushobozi bwo gusenya no gukora neza ibikoresho. Imyenda iremereye yo gucukura amabuye y'agaciro