***Our staff was invited to the presentation of the launch***
Top Hammer XL is the latest innovation in surface hammer drilling from Sandvik Mining and Rock Solutions. The new drilling system, targeting large-scale quarry and surface mining customers, offers a new way to drill holes 140 to 178 millimeters (5.5 to 7 inches) in diameter. The components of the system – a new Pantera DP1600i drill rig, new RD1840C rock drill, and new LT90 rock tools – are all optimized to work together seamlessly to achieve the results.
Productivity and fuel consumption
Sandvik introduces a hammer drilling innovation that offers the benefits of hammer drilling technology as a viable alternative to down-the-hole (DTH) drilling. The Top Hammer XL drilling system expands the hole size range of top hammer drilling to up to 178 millimeters (7 inches) and provides a faster and efficient drilling method. In addition to drilling results, it offers a solution to reduce fuel consumption and, ultimately, CO2 emissions. This productive drilling method can help Sandvik customers grow their business in a more sustainable way.
An optimized system
The heart of the Top Hammer XL system lies in Sandviken, Sweden, and Tampere, Finland, where all the components have been designed and manufactured. They work seamlessly together and provide smooth operation and a productive system with great drilling results. Jukka Siltanen, Product Line Manager, Rock Drills at Sandvik Mining and Rock Solutions, says:
“A key asset of the Top Hammer XL drilling system is that all three main components – the drill rig, rock drill and rock tools – have been reviewed, redesigned and mutually optimized.”
The operation of the new Top Hammer XL drilling system stems from the three components. The proven carrier offers a solid base for the rock drill that generates a pulse for the effective tooling system, which in turn transfers the energy shock wave with minimum losses to the rock. The Top Hammer XL system has been tested and proven in several field tests by drilling more than 100,000 meters in challenging rock conditions. The test results in the given conditions show a 50 percent reduction in fuel consumption, 25 percent reduction in total drilling costs and 15 percent increase in productivity compared with the DTH drilling method.
Pantera DP1600i – Next level choice
Pantera DP1600i is the newest member of the Pantera DPi series family of intelligent hammer drill rigs, characterized by great penetration rates and automation options for data-based fleet management and drilling performance optimization. Designed for large hole size drilling, the Pantera DP1600i, with its support for great automation solutions, is suitable for production drilling in large quarries or open-pit mines.
The new Pantera DP1600i is based on the Pantera DPi series platform, with upgraded key components to meet the needs of the Top Hammer XL system. Together with the RD1840C rock drill and LT90 rock tools, the end result is the capacity for larger hole size, without increasing the actual physical drill rig footprint. Pantera DP1600i can be customized with a variety of options to meet special requirements. Jarno Viitaniemi, Product Manager, Surface Drilling at Sandvik Mining and Rock Solutions, explains:
“The Pantera DPi platform has proven itself over the years, starting as far back as 2008, so it was a natural choice to upgrade the existing platform to the next level for this new solution.”
Pantera DP1600i drill rig is available with Tier 3 and Stage 5 engine emission versions.
RD1840C rock drill
The new RD1840C rock drill is designed for large hole drilling with 49 kW (66 hp) drilling power. Its robust design and balanced long piston percussion package are made for demanding circumstances. The manufacturing process ensures the required quality of the rock drill components.
The long piston technology generates high-impact energy with great pulse form, optimizing performance in large hole drilling without compromising the rock tools’ service life. The geometry and physical dimensions of the new RD1840C rock drill have been optimized for the entire Top Hammer XL drilling system.
As an additional option, RD1840C will be available with the Sandvik RockPulse tool stress monitoring system later in 2021. The system offers the drill operator real-time measurement data on three key drilling parameters: drill bit response, tools load and feed level. The system measures the stress waves and guides the operator to find the right drilling parameters for the right rock contact.
LT90 rock tools – a new drilling experience
The LT90 rock tools – consisting of a shank adapter, MF tube rods and drill bits – are developed to match the other components in the Top Hammer XL system. Fredrik Björk, Product Manager Top Hammer Surface Tools at Sandvik Mining and Rock Solutions, says:
“Our patented and optimized LT90 rock tools design increases productivity, improves hole straightness and provides great coupling characteristics and a long service life.”
“All in all, this new shoulder-driven system with a double-pass thread gives our customers a much better drilling experience. Combined with Sandvik’s class-leading rock tools services, it will truly help our customers reach new levels in their drilling operations.”
The LT90 shank adapter is designed for a great energy transfer from the rock drill piston into the drill string and is developed in close collaboration between Sandvik’s experts on both rock tools and rock drills to ensure great performance.
With the new MF tube rods, developed to convey high-energy shock waves with minimal energy loss in the threads, Top Hammer XL customers will get a higher rate of penetration, straighter holes and increased service life for the whole drill string. The optimized thread design minimizes stress levels from bending, and excellent coupling characteristics are seen in the double-pass thread of this tool system. Premium steel grades and heat-treatment processes further improve its durability.
Sandvik’s classic and patented retrac design form the base for the LT90 drill bits, with a strong gauge row, great rock-breaking capabilities and reduced hole deviation. The drill bits are available from 140 to 178 millimeters (5.5 to 7 inches) and can be delivered with standard carbide grades as well as PowerCarbide, depending on the rock formation.
Customer is the key
With the new Top Hammer XL system, Sandvik complements its offering for surface mining customers in the continuous search to find drilling solutions for different requirements. Petri Virrankoski, President, Surface Drilling at Sandvik Mining and Rock Solutions, says:
“Our aim is to serve our customers with the best solutions for every application and in all conditions in order to maximize their productivity with a strong focus on safety and sustainability.”
“We are extremely excited to lead the way in the industry as Top Hammer XL opens up completely new possibilities for our customers to improve their operations.”
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