Through Seam Blasting
Technology for through-seam blasting
When you're through-seam blasting, you're under constant pressure to speed up excavator dig rates and increase coal recovery - all while reducing the number of drill and blast cycles.
You can see the results in our Electronic Blasting Systems, High Energy Bulk Systems and our sophisticated blast design and modelling capabilities. They're all backed up by the technical service and support you need to move more rock with fewer blasts. That's the power of partnership.
Wahana site is located in the Tanah Bumbu regency South Kalimantan, approximately 200 km South East from the capital city Banjarmasin. The project is owned by Wahana Baratama Mining, serviced by PT Leighton Contractors Indonesia with PT Orica Mining Services providing explosives related services.
Leighton operates two-229mm Drilltech D 55 units and eight-140mm Tamrock Pantera units, with trucks and excavators to remove overburden and interburden. Small excavators are being used to expose the coal seams.
Xstrata’s Newlands Open Cut coal mine is located approximately 130 kilometers west of Mackay in the Northern Region of the Bowen Basin, in Central Queensland. Due to the steep dip of the coal seams, which ranges up to 23 degrees in the North Eastern corner of the pit, the previous drill and blast method produced sub-optimum results for both blasting and excavation. Through successful implementation of through seam blasting, as part of the ABT™ project in the Wollombi Pit, significant improvements have been realized by Newlands.