subterranean tools inc raise boring machines
Tunnel Boring Machine
May 06, 1994· In raise boring, a pilot hole is drilled first, and then the reamer (or the cutter head) of a raise machine is connected to the end of the drill string/pipe The reamer works upward, as shown in Fig 79 The mechanism of rock breakage in the raise boring is similar to that in either rotary crushing or rock boring...
raise the bar
raise boring machine was a significant new product launch introduced in late 2012; says that this is a completely new concept in raise boring has been involved in a number of raise-boring projects recently, ranging from down-boring in a nuclear waste deposit site to extremely long conventional raise-boring projects...
Raiseboring tools
Raiseboring tools The rotary drilling method of boring large diameter holes for the mining and construction industries has proven to be very cost effective Raiseboring has gained worldwide acceptance as the preferred method for constructing ventilation and hoisting shafts, ore passes and hydroelectric penstocks...
Core Drill Rig manufacturer
Quality Core Drill Rig, Diamond Core Drill Bit & Raise Boring Machine suppliers & exporter - all products made in China...
Raise Boring Machine by Axel Gallegos Gutierrez
TERRATEC RAISE BORING MACHINES TR SERIES The original and most traditional series of Raise Boring Machines is the TR ( Terratec Raise) seri...
Techniques in Underground Mining
Techniques in Underground Mining , The raise boring machine , The air-leg and rock drill, with a combined weight of 45 kg, is the usual tool for drilling the shrinkage stope Standing on top of the muckpile, the miner picks up the drill/feed, anchors the leg, braces the rock drill/drill steel against the roof and starts drilling; it is not ....
Rock tools
offers a complete range of rock tools for bench drilling, raise boring, coal and mineral cutting, tunneling, trenching, road grading and cold planing All equipment is designed based on years of research, experience and customer feedback, ensuring that you get the best tool for the job...
robbins company raise borer
A raise borer is a machine used in underground mining for excavate a circular hole between two levels of a mine without the use of explosiv , RAISE BORING MACHINE p>, Stu Blattner Inc's raise bore machines are among the best in the world We offer many different sizes to fit our customers needs and are very cost effective...
Introduction to Rhino 100HM
Aug 08, 2013· Rhino 100HM is the solution for high capacity mining Complete solution, everything needed travels on rubber wheels...
Advances in raise boring
Jun 22, 2012· A raise boring machine (RBM) is set on a flat platform on the upper level and used to drill a pilot hole through to the cavity below Once the drill has broken through, the bit is removed and a reamer head, of the required diameter of the shaft, is attached and pulled back upwards, rotating and cutting as it go...
TABLE OF CONTENTS
Raise Boring and Raise Excavation Raise boring is a continuous, mechanical method of excavating vertical or near-vertical holes between two levels of an underground mine The holes can be used for ventilation, manways and ore and waste transportation Raise boring is generally considered a safer, faster and more cost-effective way...
Robbins 34RH C
the robbins 34rh c is a low-profile, lightweight raise drill rig for holes of smaller diameter it is ideal for slot holes, back filling and narrow vein mining applications the robbins 34rh c can effectively be used for conventional raise boring as well as down reaming and upward boxhole boring, making it the most versatile raise drill rig...
Sizing down to raise up
The new developments towards more flexible raise boring solutions originate to a significant extent from demands from miners and contractors for equipment with higher usability on site This means equipment that can be used not just for raise boring but in production as well...
Raise borer
A raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosiv The raise borer is set up on the upper level of the two levels to be connected, on an evenly laid platform (typically a concrete pad)...
Raise Boring Machine from China Manufacturer ,
AT /ZFY Raise Borer The series ZFY and AT raise borers are mainly used to drill holes and ream ventilation shafts, filling raises and pipeline shaft, etc, and to excavate large cross-section raises and passes as well in underground mines, among them Models AT2000 and TYZ 1500 raise rotary drills have won provincial/ministerial first and second prizes respectively...
Rolling cutter arrangement
Dec 12, 1978· When used with raise boring equipment, the drill string 12 is rotated by machinery located on the surface of the earth, not shown, and the drill string 12 pulls the cutter head structure 10 upward during rotation...
Robbins 34RH QRS
the robbins 34rh qrs is a low-profile, lightweight raise rig for holes of smaller diameter in mining and tunnelling applications this powerful robbins machine can tackle most rock types to drill...