Atlas Copco Pit Viper 311 Blasthole Drill for Holes up to 125 Feet

September 25, 2012
Atlas Copco Pit Viper 311 Blasthole Drill for Holes up to 125 Feet

Pit Viper 311 wide-range rotary blasthole drill can drill holes to 125 feet in a narrow range of sizes 9 to 12.25 inches, which fills the gap between the hole ranges of the Pit Viper 351 and the Pit Viper 270. Drive train options include both Tier 4 and Tier 2 engine choices. The tower has an interchangeable unit and accommodates large sheaves for either single-pass or multi-pass applications. Bits can be changed above the Pit Viper 311 rig’s deck even while single-pass drilling 65-foot-deep holes. The two-speed hydraulic rotary head delivers 12,880 lb.-ft. of rotation torque at 140 rpm and 7,000 at 240 rpm. A new cab has a fully adjustable chair with joystick and cab controls, and has been elevated above the deck to give the operator a better view.

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