The most efficient rotary tricone drill available for drilling 270 mm to 311 mm (10-5/8” to 12-1/4”) holes with up to 19.8m (65 ft) clean hole single pass capability.

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Introducing Atlas Copco's Pit Viper 311

Atlas Copco's Pit Viper 311 made it's debut at MINExpo 2012. It's part of the future Pit Viper 310 series that will offer single and multi-pass drilling options.


Patented cable feed system with automatic tensioning

Cable feed and automatic tensioning ensure long component life and less service for maintaining the feed system reducing operating costs of the drill.

Rig Control System (RCS) is standard

The PV-311 comes standard with automation features through the RCS platform.

Fuel effeciency

With the optional patented hydraulic clutch and engine choices, the PV-311 delivers large holes for lower cost than other products in its class.

Look to the Pit Viper series of drills if technology, productivity, and high asset life for the lowest total cost of ownership are on your list of priorities.

• A rotary head with powerful torque of up to 18 kNm (13,250 lb-ft) , compressor capacity of up to 3,000 cfm of air, and 49895 kg (110,000 lb) weight on bit, give the PV-311 more than enough performance to drill a 12-1/4” hole

• Preventative maintenance is simple and fast on the PV-311 thanks to placement of all filters in a centralized, easy to access location on the deck.

• The single pass tower allows for clean hole single pass drilling of up to 19.8 m (65 ft) and multi pass drilling of up to 41 m (135 ft). The tower is also a “live tower” design meaning it can be raised and lowered with a full carousel and the rotary head at the top of the tower – further testament to the structural design of the tower.

• The Atlas Copco patented hydraulic wet clutch removes the load of the compressor during non-drilling functions and decreases fuel consumption and TCO

• The standard Rig Control System (RCS) provides on board automation capability as part of the standard drill package to help deliver safety and productivity. With RCS you can run automation with an operator on board with options like auto drill and auto level or you can run with the operator off the drill with the optional BenchREMOTE package allowing one operator to run one or multiple units. With the RCS system on Pit Vipers you can even achieve your ambition of fully autonomous drilling with almost no human interaction with the drill.

• The PV-311 offers great service access due to the layout of the deck and the ability to troubleshoot through the RCS system in the cab.

• A large cab offers excellent visibility and operator comfort, it's kind of like getting an upgrade to first class on your flight.


Pit Viper 311 Brochure US format
Technical Specifications Imperial Metric
Product series Pit Viper series Pit Viper series
Drilling method  Rotary and DTH - Single pass Rotary and DTH - Single pass
Hole diameter  9 - 12.25 inch 228 - 311 mm
Hydraulic pulldown  100000 lbf 445 kN
Hydraulic pullback  50000 lbf 220 kN
Weight on bit 110000 lb 49900 kg
Single pass depth 65 ft 19.8 m
Maximum hole depth 135 ft 45 m
Estimated weight 310000 lb 140 t