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EXTREME CARBIDE – A PERFORMANCE BOOST FOR TH BITS Top Hammer (TH) is a common method for drilling hard rock in mines, quarries, and construction. The hammer strikes the rotating drill bit via a drill rod or pipe thousands of times per minute, rapidly wearing out the bit's buttons. Improving the durability of drill bits is a key area of continuous research and development for Robit. In TH bits, Robit's latest innovation is the Extreme Carbide button. Its core is the same material as Robit's tried and tested standard TH button, but it is coated with a new, more wear-resistant carbide alloy, giving it more drill meters before sharpening is needed. "Robit has been developing Extreme Carbide buttons for some two years in Lempäälä, Finland, in cooperation with our long-standing button suppliers," says R&D Engineer Lauri Söderberg. Field tests are naturally an integral part of the product development of drilling components. The first tests were carried out in Sweden in the autumn of 2023 with the cooperation of EuroDrilling Center (EDC), a distributor of Robit's products in Sweden. "EDC is an essential partner for us, and we wanted to leverage their deep expertise. They also found suitable test sites on short notice," says Lauri. The test involved 76, 83, and 89 mm TH bits that were evaluated for diameter wear, sharpening interval, and penetration speed. "The tests demonstrated that the new button adds value to our product. Especially in harder and more abrasive rock conditions, Extreme Carbide outperforms our proven standard TH bit", says Lauri. The testing phase was completed in April 2024, and the new Extreme Carbide TH bits are currently available on the market alongside the standard TH bit. Although the R&D work on this bit is concluded, the team in Lempäälä will continue their quest to find the next breakthrough. #Robit #Eurodrillingcenter #experts #drillingconsumables #tophammer #mining #quarrying #drillandblast #topperformance