Down-the-hole drill - Wikipedia
WEBA down-the-hole drill, usually called DTH by most professionals, is basically a jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or drilling mud ).
Down-the-Hole Drilling Method Explained - Trenchlesspedia
WEBNov 20, 2019 — Down-the-hole (DTH) drilling has made it easier for contractors to drill wells faster and more efficiently, and to transition from dirt boring to rock boring just by adding a compressor and hammer to the drill bit.
What is the Down the Hole Drill Method? - Blog
WEBThe down-the-hole drilling method offers high penetration rates in hard rocks, thanks to its powerful impact energy delivery system. This makes it possible to achieve deep boreholes in challenging terrains without compromising on speed or quality.
Down the Hole (DTH) Drilling Tools | Bits, Pipes, Rods - Epiroc
WEBThe world's most comprehensive and productive range of rock drilling tools. We offer a complete range of down-the-hole products including hammers, bits, pipes, adapters and breakout benches. Read more and contact us here!
What is DTH Drilling? | Furukawa FRD - frdusa.com
WEBDown-the-hole drilling (DTH) essentially involves a drilling hammer at the bottom of a drill string. It relies on three elements for drilling holes: bit loading (weight), rotation and air. These active elements combine to be efficient at crushing rock. As the drill string slowly rotates, the drilling hammer is forced into the rock repeatedly.
Leopard™ DI550 Down the hole drill rig/Sandvik DI550 Diesel …
WEBLeopard™ DI550 diesel-powered, down-the-hole (DTH) drill has enhanced mobility, a smaller footprint and can serve multiple sites. Designed for DTH blasthole drilling in mining, quarry and construction industries, it comes with an operator’s cabin, fixed boom, dry dust collector and drill pipe changer.
Leopard™ DI650i - Sandvik Mining and Rock Technology
WEBLeopard™ DI650i is an intelligent diesel-powered, self-contained, crawler-mounted down-the-hole drill rig built for demanding high-capacity production drilling applications in surface mining and large quarry applications.
DTH Hammers and Bits - Center Rock Inc.
WEBCENTER ROCK’s CR line of down-the-hole drills are reliable drilling workhorses that stand up to the most demanding conditions. A valveless air cycle provides consistent drilling performance and reliability foot after foot and year after year.
Surface drill rigs - Sandvik Mining and Rock Technology
WEBDesigned to work in the toughest operating conditions, our surface drill rigs combine power with precision and are designed for efficiency and operator comfort. All. Surface top hammer drill rigs. Surface down-the-hole drill rigs. Dimensional stone drill rigs.
Down the hole hammers: a guide for drillers and engineers
WEBMay 10, 2023 — Discover the impact of Down the Hole Hammers (DTH hammers) in urban redevelopment projects. Learn how these specialized tools enable geotechnical engineers to drill in hard rock formations without damaging surrounding buildings.