Showcased this week at CONEXPO=CON/AGG in Las Vegas was Komatsu’s new ZT44 DTH hammer blasthole drill rig. The company states: “The Komatsu ZT44 blasthole drill is a down-the-hole surface drill rig specifically designed for mining-duty applications. This track drill is a versatile machine, used for pre-split, production, auxiliary and any other application the end user demands. The ZT44 offers higher reliability and production compared to its competitors due to its purpose-built structures and dual-setting compressor, adaptable to varying hardness conditions.”
With the flexibility and smaller footprint to excel in the quarry, aggregate or construction environments, Komatsu says the ZT44 track drill separates itself in the mining market with its industry-leading production rates and durability. “Meet your production demands with a machine that is made to keep up, working 24/7. In addition to the around-the-clock operation, this drill supports mining applications with the higher reliability and longer life you’re looking for, offering versatility by meeting your needs for pre-split, production or auxiliary applications. Engineered for the harshest places on earth, the ZT44 is ready for around-the-clock operations. Equipped with a dual-pressure air compressor enabling high- or low-pressure drilling, the machine can efficiently adjust to changing drilling conditions to still achieve optimal performance.”
The ZT44 also has the largest compressor in its class. “Paired with a robust power unit, the ZT44 is ready for a variety of work locations, including challenging elevations where production often drops off. A robust chassis and accompanying structures mean you will not need to worry about shortened component life from longer work windows, while the smaller footprint of the machine means it still provides the flexibility of drilling in locations that can’t be accessed by larger rigs. Exceptional pulling capacity allows the ZT44 to move around unstable ground and tackle steeper grades than other OEMs.”
For operations in extreme temperatures, the ZT44 Komatsy says can still meet availability needs. “The machines are equipped with a best-in-class heat exchange unit to mitigate high thermal loads produced during the drilling operation. A second cooler is dedicated to keeping hydraulic temperatures in an optimum working state, resulting in more time dedicated to drilling holes.”
Safety-wise, a wireless remote pendant supports a safer environment for routine maintenance. The operator can remotely position the rig and position the boom or mast efficiently to change out consumables. The compact Komatsu ZT44 is also engineered for access. An external catwalk and handrails provide accessibility around the machine for routine maintenance and an internal walkway through the canopy provides access to internal componentry, such as the engine and compressor. The low centre of gravity means optimum stability, offering confidence as it performs in a variety of locations throughout the mining/quarrying operation.