Appendix 1.pdf

This is a specifications document for the CME 850XR, a mobile drilling equipment unit presented as an appendix to a federal contract opportunity.

The CME 850XR is a track-mounted drill rig powered by a Cummins QSB 6.7 turbocharged diesel engine producing 195 horsepower at 2,300 rpm, with a rated drilling horsepower of 117 hp. The carrier features a 27.5-inch track width and generates a maximum tractive force of 44,526 pounds. The rig operates at low and high speed ranges of 2.4 mph and 5 mph respectively, with gradeability capabilities of 60 percent straight-ahead and 40 percent side-hill inverse climbing. The drill utilizes a 5-speed forward, 1-speed reverse transmission with rotary torque capacity of 15,410 foot-pounds at 670 rpm maximum. The leveling system employs three jacks with inverted design and 36-inch stroke capability. The hydraulic feed system delivers a retract force of 28,275 pounds with a maximum feed rate of 96.7 inches per minute and stroke of 72 inches. The equipment has an approximate weight of 31,250 pounds and measures 22.3 feet in length and 8.8 feet in width. The specifications include technical drawings showing side and front elevation views of the fully configured drill rig unit.