Nke a bụ ngwa atọ ga-ekwe omume nke igwe mkpuchi hydraulic maka ogbunigwe coal:
Nkwado n'elu ụlọ na Ngwuputa Ngwuputa N'okpuru ala: A na-eji hydraulic bolting rig na-etinye ihe mkpuchi nkume n'ime elu ụlọ nke coal iji nye nkwado nhazi, na-egbochi ịdaba na ijide n'aka na nchekwa nke ndị na-egwuputa ihe na-arụ ọrụ na gburugburu ala.
Nkwụsi ike nke ọwara: Mgbe a na-egwupụta ọwara n'ime ogbunigwe coal, a na-eji rig ahụ chekwaa mgbidi na uko ụlọ nke ọwara site n'itinye bolts, na-eme ka nkwụsi ike na ibelata ihe ize ndụ nke okwute.
Nkwalite mkpọda na mgbidi: N'ebe a na-egwupụta ihe nkedo mepere emepe ma ọ bụ mpaghara nwere mkpọda ugwu, igwe mkpuchi hydraulic na-enyere aka iwusi mgbidi dị n'akụkụ, na-egbochi mbuze ala ma ọ bụ mbuze na hụ na iguzosi ike n'ezi ihe nke ebe a na-egwuputa ihe.
Ngwa ndị a na-elekwasị anya n'ịkwalite nchekwa na nkwụsi ike na ọrụ ngwuputa coal.