Feme ea rona e ka hlahisa mefuta e mengata e fapaneng ea likhokahano tsa pina eo sekontiri se tlohang ho 90mm ho isa ho 226mm, li loketse mefuta eohle ea metjhini ea li-crawler ea excavator, bulldozer, mechini ea temo le mechini e khethehileng.
Liketane tse ommeng tsa pina, liketane tse tiisitsoeng le tse tlositsoeng ka mafura, liketane tse tlositsoeng bakeng sa ts'ebetso e phahameng.
Sehokelo sa pina se entsoe kalafo e thatafatsang ea maqhubu a mahareng, e netefatsang matla a eona a phahameng ka ho fetesisa le ho haneloa ha abrasion.
Pini e etsoa ka mokhoa oa ho futhumatsa le ho tima kalafo ea maqhubu a mahareng, e netefatsang ho tiea ho lekaneng ha mantlha le ho hanyetsa abrasion ea li-sunaces tsa kantle.
Sehlahla se etsoa ka mokhoa oa carbonization le kalafo ea ho tima metsi a mahareng a maqhubu a mahareng, e netefatsang ho tiea ho lekaneng ha mantlha le ho hanyetsa abrasion ea bokantle ba kahare le kantle.