Rotay Duplex Drilling Services

ACT owns several rotary duplex drill rigs capable of using either auger rotary or eccentric drill tooling systems for overburden drilling. Typically, this type of drilling is used for rock anchors, soil nails, micropiles, overburden casing installation or holes of large diameter or long-reach drill holes. ACT`s rotary duplex drills utilize inner and outer drilling strings housed in a magazine rack. The magazine rack, operated by hydraulics, allows the drill string to be loaded and unloaded. The drill head is equipped with a twin-impact system that permits rotary percussive drilling with both the inner drill rod and outer drill casing simultaneously, thus reducing drilling time.