Sandvik Construction’s RH460 series of down-the-hole hammers have been developed to give customers even higher levels of productivity and reliability, while simultaneously delivering lower operating costs, according to the company.
The Sandvik RH460 series of DTH hammers has been developed in order to provide drilling customers with the enhanced levels of penetration rates, longer service life and lower operating costs that they now demand. Possessing key features that optimize the impact-energy transmission into the rock, utilizing very few parts, they are designed to be reliable, easy to service and fast.
Continuous improvement has been the key to the development of the Sandvik RH460 series, and it has only been through the constant search for enhanced performance, through productivity, that has allowed Sandvik to deliver the operational improvements our customers demand from its DTH hammers. Thus, with the RH460 Sandvik is able to provide customers with higher impact energy and drill performance, while maximizing productivity in almost all ground conditions
Design, Test and Evaluate
The mantra behind the design has been to test and evaluate; this has led to the RH460 design being able to prolong hammer life and increase drilling penetration rates. At its core is the ability of the RH460 to utilize an enhanced air cycle, which leads to a reduction in fuel consumption. Furthermore, power levels improve productivity through better lubrication capabilities and increased resistance against galling; all combined with developments in the piston bearing design. Put quite simply; piston and hammer life are dramatically increased.
The new Sandvik RH460 series hammers is available in 4-, 5- and 6-in., with all versions being designed to utilize bits with generic shank types.