Epiroc PowerROC D45 — Track-Mounted DTH Drill Rig for Quarry Blasting
Epiroc — Drill Rigs | Authorised partner in Armenia — Wayland Armenia
PowerROC D45 is a track-mounted DTH (down-the-hole) drill rig for medium quarry operations. A high-pressure compressor ensures efficient DTH hammer operation in hard and abrasive rock with 115–178 mm hole diameters.
Key specifications PowerROC D45
| Drilling method | DTH (down-the-hole) |
| Hole diameter | 115–178 mm |
| Application | Medium quarry operations |
DTH — Down-the-Hole Method for Hard Rock
In the DTH method, the hammer sits directly behind the bit, transferring impact energy straight into the rock without losses through the drill string. This delivers high penetration rates in hard, abrasive, and fractured rock where top hammer loses efficiency. PowerROC D45 is optimised for rock with hardness f = 8–20 (Protodyakonov scale).
High-Pressure Compressor — DTH Hammer Efficiency
DTH hammer efficiency depends directly on compressor pressure. PowerROC D45 is equipped with a high-pressure compressor providing stable hammer operation at 115–178 mm diameters. High pressure maintains productivity at deep holes without performance loss.
Reliable Components and Easy Maintenance
PowerROC D45 reflects Epiroc's decades of experience designing drill rigs for demanding mining conditions. High uptime availability through a reliable hydraulic feed and rotation system and convenient service point access.
Frequently asked questions about PowerROC D45
What are the advantages of DTH over top hammer?
In the DTH (down-the-hole) method, the hammer transfers impact energy directly to the rock without losses through the drill string. This delivers high penetration rates in hard and fractured rock, straighter holes, and lower drill bit wear compared to top hammer.
What hole diameter does PowerROC D45 drill?
Hole diameter: 115–178 mm.
Which rock types suit PowerROC D45?
PowerROC D45 is most effective in hard, abrasive, and fractured rock: granite, basalt, quartzite, gneiss. In soft rock, DTH is less economical than top hammer.
How does D45 differ from D55?
D55 is for larger quarries with wider hole diameters (152–229 vs 115–178 mm) and higher engine power (~340 kW). D45 is the optimal choice for medium quarry operations.
How do I get a quotation for PowerROC D45?
Call +374 10 530 669 or fill in the form on this page.
