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Rockmore ROK 550T: The new five-inch class tubeless DTH hammer

Rockmore International introduces the newest addition to its T Series DTH hammer line — the ROK 550T. The Rockmore T Series DTH hammers are “tubeless” and utilize drill bits with industry standard shank connections without the imbedded plastic blow tube/foot valve.

Rockmore revolutionized the drilling industry with the launch of its first T Series DTH model, the ROK 600T, a six-inch class model that uses a tubeless QL6/QL60 bit shank.

Last year we released our ROK 60T-360T hammers that utilize the IR 360 bit shank without the blow tube/foot valve. Now, Rockmore extends the T series to the new ROK 550T, a five-inch class hammer model which uses the industry standard QL5/QL50 bit shank, but with the blow tube/foot valve removed. With high performance drilling characteristics rated for drilling 5.5-inch to 6.0-inch diameter holes, the ROK 550T is suitable for blast-hole applications in the mining and construction sectors and for deep hole drilling in the water-well and geothermal sectors.

As with all Rockmore DTH hammers, the new ROK 550T takes advantage of Rockmore’s patented SonicFlow technology, which optimizes airflow by simplifying and streamlining the air paths to minimize back flow and turbulence, thus delivering more energy to the piston. Field testing of the SonicFlow design was determined to result in faster penetration rates and greater overall DTH hammer efficiency.



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