挖改(gai)潛孔(kong)鉆(zhan)機壓縮空(kong)氣(qi)為動力的中(zhong)深孔(kong)鑿(zao)巖設備主要用(yong)(yong)于井下采礦(kuang)場接(jie)桿鉆(zhan)鑿(zao)上向扇(shan)型或環(huan)型中(zhong)深孔(kong)的石(shi)方工(gong)程。適用(yong)(yong)于巷道斷(duan)面(mian)為2.5*2.5m到3m*3m鉆(zhan)孔(kong)直徑50－80cm，有效(xiao)孔(kong)深30m。采用(yong)(yong)直徑65mm的十(shi)字型合金釬(han)頭在F12-14級礦(kuang)巖中(zhong)，平(ping)均(jun)純鑿(zao)巖速(su)度可達680mm/分。鉆(zhan)架結構簡單。鑿(zao)巖機拆運方便，工(gong)作安全可靠，效(xiao)率高(gao)。用(yong)(yong)于冶金礦(kuang)。