Rockmore International launches ROK 550T drill

摘要

Rockmore International has launched its new ROK 550T drill for the European market. The latest addition to the company's T Series DTH hammer line, the 127mm class product uses the industry-standard QL5/QL50 bit shank, but with the blow tube/foot valve (plastic tube) removed.Pejman Eghdami, Rockmore executive vice president, said: "Plastic parts do tend to break in deep hole drilling, causing the hammer to stop leading to costly downtime. Others have tried removing the plastic tube but they lose a lot of performance in penetration rates. We've designed uniquely around that [so that performance can be maintained]."With high-performance drilling characteristics rated for drilling 140-152mm diameter holes, the ROK 550T is said to be ideal for blast-hole applications involving, among others, geotechnical and geothermal contractors. It is also well suited to water well drilling work. Rockmore's first T Series DTH model was the ROK 600T, a 152mm class model that uses a tubeless QL6/QL60 bit shank.