Epiroc has launched a new tube drilling system – ET51 which replaces the previous T51 tube drilling system. This new system greatly outperforms traditional speed-rod systems and it says allows for straighter and deeper production drilling plus improves service life. Unlike its predecessor, ET51 comes with only one tube type which simplifies procurement and management. “The system’s capability of extremely straight drilling is the result of a new tube design, a stiffer drill string thanks to the shoulder drive, a new coupling geometry and greatly improved bending endurance resulting in up to twice the strength of our previous model T51.”
The new system also means that the operator can drill deeper than before. Lighter tube ends, which also have an improved geometry, allow more energy to be transferred into the rock. The advantage increases with each tube in the drill string, reducing the rate of penetration loss per tube, adding up to considerably deeper holes. “Our new tube drilling system really provides a significant advantage for the operator. Straighter and deeper drilling means improved productivity. This is further enhanced by fact that it comes with only one tube type making management and procurement a lot easier. It really is somewhat of a game changer,” said
Besides improving straightness, shoulder drive reduces tube wear. The new optimised coupling geometry, including patented threads, means less mechanical wear. Field tests have shown that ET51 provides up to 45% longer service life. This greatly improves personal safety for the operator through fewer shifts. Another aspect of longer service life is that there will be fewer tubes manufactured in total over time, which in turn reduces the outtake of raw material and less transportations. “Sustainability and safety are important factors for us when developing new products and longer service life means less shifts which increases safety and improves our carbon footprint. It is a win-win for both us and our customers,” says
Epiroc adds: “Hole deviation reduces profitability in production mining. We developed ET51 to help you go straight for the ore with high precision and accuracy, This new tube-drilling system greatly outperforms traditional speed-rod systems when it comes to drilling straight. You’ll notice it clearly from improved blasting, higher ore recovery, less dilution and increased productivity.”
