Breaking, Drilling & Blasting

Italian manufacturer Tesmec is highlighting its Rock Hawg technology, which it says allows excavating strong and unfractured rock avoiding the use of explosives. “Conventional drill and blast methods are still the most widely used excavation methods in quarrying and open pit mining, and in many cases they remain the most productive and cost effective techniques,” says Tesmec. However, it claims that not using explosives can be of primary importance “considering that the use of explosives is being subject to

An Indian quarry operator is using a Sandvik BA2424 hydraulic breaker to increase basalt production at its facility in Gujarat State. Amrut Quarry, a pioneering quarry operator, selected the new Basic Line breaker to help increase productivity levels. Charged with secondary, post-blast boulder breaking, the breaker is spearheading an upgrade to a quarry that has 17.5 million tonnes of reserves and a life expectancy of at least another 20 years. The 36-plus hectare Amrut Quarry is owned by Sri. Kamal Bhai, a

Doosan Infracore Construction Equipment has added two new models to the company’s range of hydraulic breakers for use on Doosan wheeled and crawler excavators from 14-38tonnes. As with the existing DXB100H, DXB170H and DXB260H models, the new DXB130H and DXB190H hydraulic breakers are said to to provide very efficient reduction of rock, boulders, concrete and other demolition waste, as well as excellent excavation work.
The new Doosan DXB130H breaker is suitable for excavators up to 22tonnes (Doosan DX160L

Rockmore International’s new drill bit design is said to be especially suited for hard rock quarry drilling.
The new CrossFlow bit design is also said to extend bit life and improve penetration rates for percussive drilling applications in abrasive and challenging rock condition. “Overall drilling efficiency is greatly influenced by bit penetration rates. Increasing rate of bit penetration is mostly determined by impact energy and flushing efficiency,” says Rockmore, which has targeted improvements in bit

Ireland-based Terex Finlay has unveiled its latest cone crusher innovation with the C-1540RS, which is based on the C1540 machine but adds the benefits of a recirculation conveyor and three-deck screen. A spokesman for the company said that the new model is "effectively two machines in one". The standard C-1540 crusher features a pre-screen to remove fine material before it enters the cone and prevent wear, but the RS model has a detachable screen with a recirculation conveyor to return over-sized material

New heavy breaker Italy-based Promove has added the range topping 7tonne XP7000 hydraulic breaker to its line-up. "The new model is the largest in our hydraulic breaker range and designed for use with 50tonne carriers," said Promove commercial director Antonio Cannao. "The unit is aimed at the primary breaking market in quarries, which we think is a growing market with the increasing environmental challenges that are affecting aggregate activities.The new model shares features with the rest of the XP range,

Indeco has announced that all of its medium and large sized hydraulic breakers will now feature its new Anti Blank Firing (ABF) system. "The system will be available on all breakers from the HP 2500 upwards," said Indeco's Michele Vitulano. "The new concept will prevent damage to the cylinder when the tool is not in contact with the rock. It will help prevent premature failure and break down, especially in applications like secondary breaking when the operator may not always have a clear view of the materia