Caterpillar has increased drilling efficiency while reducing ownership costs with its new blasthole drill, the Cat MD6250, which includes automated operation features to deliver precise drilling in single- and multi-pass applications, for both rotary and down-the-hole modes.
For maximum machine longevity, the blasthole drill has a new frame design with a heavy cross-bracing in high-load areas, while the box section provides high structural rigidity due to its four levelling jack, mast pivot and deck all being welded to the main frame.
Caterpillar said, “The new MD6250 drill is application-built for efficient drilling of 10m and 12m benches, including angle drilling for cast blasting, making it the ideal drill for mining, quarrying and heavy construction applications.
“A true global machine, it is EU compliant, GOST certifiable, AUS compliant, CSA certified, MDG15 and MDG41 aligned, meets emissions standards for any region, and meets over 30 ISO standards.”
The flexible machine drills hole diameters reaching 150-250mm with bit loads of 22,321kg and 32,655kg respectively for the 11.2m and 13.7m masts, and features angle drilling from 0 to 30 in 5 increments.
With an approach angle of 15, the MD6250 offers easy ramp access and loading possibilities, is capable of climbing gradients of up to 26 to get to the bench, and a three-point oscillating suspension allows it to move across rugged terrain without transferring excessive torsional forces to the main frame.
Powering the vehicle is a Cat C27 Acert engine offering 655kW of power at 1,800rpm, configurable to any emissions regulations. Variable air volume provides 50% less engine load for increased fuel efficiency, while engine and air intake filters provide 500 hours of service intervals reducing long-term operating costs.
A spacious cab gives the operator 3m2 of floor space, along with rubber shock-mounts to absorb mechanical vibrations from drilling and lower exterior noise. Joystick controls include full instrumentation and two 254mm color touchscreen displays, while the fabric or leather power seat with heat and ventilation includes recline, tilt and lumbar support for the operator.
March 24, 2017