Ukukhethwa kwamalahle kungamathuluzi ayisisekelo ekumbiweni okuhlukahlukene kanye nemisebenzi yezimayini:
Imayini Yamalahle Engaphansi: Uhlelo lokusebenza oluyinhloko, olusetshenziswa kubavukuzi abaqhubekayo, abagundi be-longwall, kanye nezihloko zomgwaqo.
I-Tunnel Boring & Drifting: Isetshenziswa ku-soft to medium-hard rock tunneling kanye nokuthuthukiswa kwemayini.
Ukumbiwa kwe-Trenching & Surface: Kuqashwe kuma-trenchers amancane nakuma-excavators ukusika enhlabathini ehlanganisiwe namadwala athambile.
Ithebula elilandelayo lifingqa izici eziyinhloko ukuze uthole ukubuka konke okusheshayo:
| Isici | Incazelo | Inzuzo |
| Ukuma Kwekhanda | Okucijile (oku-conical) noma okumise okweshizolo. | Ingena kahle futhi iphule impahla. |
| Okubalulekile | Ithiphu ye-tungsten carbide iboshwe emzimbeni wensimbi oqinile. | Ihlanganisa ukumelana nokugqoka okwedlulele kanye nokuqina komthelela. |
| I-Core Mechanism | Ukuzungezisa kwamahhala ngaphakathi kwesibambi esikhiyiwe (ezinhlobo eziningi). | Iphromotha ngisho nokugqoka, ukuzilola, nempilo yesevisi ende. |
| Umsebenzi Oyinhloko | Phula bese umba amalahle kanye netshe elithambile ukuya kweliqinile. | Isebenza kahle kakhulu ekususeni izinto ngokushesha ezimayini. |
| Inzuzo Eyinhloko | Ukwenyuka Kwempumelelo Yokukhiqiza Nesikhathi Esincishisiwe Sokuphumula. | Igcina ukusebenza kokusika, inciphisa imvamisa yokushintshwa. |
| Izicelo Ezivamile | Abavukuzi abaqhubekayo, abagundi, izihloko zemigwaqo, imishini yokudonsa. | Ithuluzi elijwayelekile lokusika lezimayini zesimanje zemishini. |
Kafushane, Ukukhetha Amalahle ziyizingxenye ezibalulekile ezisebenzisekayo embonini yezimayini. Idizayini yabo eqinile, ehlanganisa ithiphu ye-tungsten carbide eqinile nomzimba wensimbi oqinile kanye nendlela yokuzungeza, iqinisekisa ukukhiqiza okuphezulu nokusebenza kahle kokusebenza ezindaweni eziyinselele ezingaphansi komhlaba nangaphezulu.
