Reverse circulation izixhobo zokomba
Ukugrumba iReverse Circulation (RC) bubuchule obusetyenziswa kuphononongo lweminerali nasemigodini ukuqokelela iisampulu zamatye ngaphantsi komhlaba. Kwi-RC yokugrumba, isando esikhethekileyo sokomba esaziwa ngokuba yi "Reverse Circulation hammer" sisetyenziswa. Obu buchwephesha busebenza ngakumbi ekufumaneni iisampulu ezikumgangatho ophezulu kulwalwa olunzulu kunye nolwakhiweyo oluqinileyo. Isixhobo sokugrumba iReverse Circulation sihamile somoya esenzelwe ukwenza amandla ajonge ezantsi ngokuqhuba isuntswana le-drill ekubunjweni kwamatye. Ngokungafaniyo nokugrumba kwendabuko, apho ukusika kunyuselwa phezulu ngomtya wokubhobhoza, kwi-RC yokugaya, uyilo lwesando luvumela ukujikeleza okujikelezayo kokusikwa.