A down-the-hole drill, usually called DTH Drilling Rig, is basically a mini jackhammer screwed on the bottom of a drill string. The speedy hammer activity breaks hard stone into little flakes and dust and can be dismissed evident by the air exhaust in the DTH hammer.
[pdf] Available in a variety of feed lengths, boom configurations and size classes, our underground drill rigs maximize productivity while delivering the lowest cost per meter. We offer battery-driven underground drills for all underground drilling applications.
[pdf] Find key product documentation such as installation and maintenance procedures, safe working documents and product processing procedures. Here you can find key documents for Sandvik ground support products.
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