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DRILL & BLAST


The JT40 horizontal


directional drill from Ditch Witch


Following on from the success of


the project, Jonsson has an update. “T e roll-out of the package continues globally now and we have so far received orders from Norway, Finland and Sweden. T e big benefi t with the new software function is that you now are much more fl exible. Instead of doing predefi ned and fi xed drill patterns in the offi ce, you now download the 3D model for the tunnel or mine to the drill rig and the drill rig by itself makes the drill pattern at the location it’s navigated to for the actual section and volume it’s supposed to drill. “T e pilot project in Bodö, Norway


is running ahead with good progress and we also have units (a Boomer WE3 and Boomer E2) in operations in the Stockholm bypass projects. T is will be a really interesting project with a lot of ramp tunnels and changes in cross- section that will hugely benefi t from using our dynamic tunnelling package. T is is especially important in projects like this, where the contours change.”


10 www.engineerlive.com


Find the thread


Rockmore International has invented what it claims is a new method of improving performance and service life of extension drill tools in surface and underground percussive drilling applications. Dubbed the Vector Rod System, the XT variant features a new thread design incorporating new guided cylindrical contact zones between the male and female joints. T ese are placed in the nose and rear of the thread connections.


Pejman Eghdami, executive vice president of Rockmore International, explains: “We specifi cally targeted an increase in thread service life while enhancing drilling performance in extension drilling applications… we have considerably improved drilling productivity and increased drill string lifetime by introducing these new design features in the XT thread confi guration. And just as important, the new XT design is fully reverse- compatible with industry-standard


The new Vector Rod System from Rockmore International


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