long-hole drill

long-hole drill

[′lȯŋ ‚hōl ‚dril]
(mining engineering)
A rotary- or a percussive-type drill used to drill long holes.
References in periodicals archive ?
Two Solo 720 long-hole drill rigs and three Toro 1400 LHDs have been assembled underground for the job", Mr Terblanche said.
For example, a Boart Longyear StopeMaster is currently drilling the undercut; its compact modular design is an improvement on the R322 long-hole drill. The versatile StopeMaster can be used for raise drilling, cable bolting, fan drilling, ring drilling and parallel drilling.
During 2017, equipment that will be procured and commissioned on-site include two model DD 321 two-boom drill jumbos; five model LH 514 8-yd LHDs; seven model TH 540 40-metric-ton (mt) haul trucks; one model DL 421 long-hole production drill; and one model DS 421 cable bolter/backup long-hole drill.
Meanwhile, global manufacturer Atlas Copco Is introducing the Simba S7 C long-hole drill, which incorporates a computerized system and a new hand-held hydraulic rock drill.
All underground production equipment purchased by SilverCrest (one long-hole drill and three LHDs) was on site.
Stoping involves the Simba S7D long-hole drill, which can drill up to 20-m-deep holes using 1.8 m rods.
Watching the up holes drill, Keskimaki explained the Sandvik long-hole drill is one heck of a drill.
Tamrock has just introduced a new long-hole drill jumbo, the Solo 1000 Sixty, to drill long, straight holes in applications where hitherto DTH rigs have been used.
Mechanized equipment currently consists of three Tamrock TP3000 and two Atlas Copco Simba Junior long-hole drill jumbos.
PHOTO : Veln mining at Namew Lake with a Tamrock long-hole drill rig which is suspended in the 3-m dia.
AMC examined the existing fleet of stope equipment (jumbos, LHDs, long-hole drills, and bolters) at the mine and established optimal drill-and-blast designs for the selected vein widths, dips, drift profiles (square and shanty), drift size (height and width), and mining methods, which could immediately be implemented to reduce dilution, without additional equipment purchases.
Long-hole drills were being mobilized, with long-hole drilling expected to begin in the second week of March.