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American Augers - DD-440T Horizontal Directional Drills

The DD-440T is the only track-mounted drill that offers the highest range of thrust/pullback power. The Wiggle Steer® System provides the operator of a directional drill the means to rotate the drill pipe and subsequently the cutting head on the drill string back and forth over a predetermined range. This back and forth motion would cause the hole made by the cutting head to be more open in a particular direction and therefore facilitate steering of the drilling pipe in that direction under ground.


Key Specifications
Rating 600 HP (441.3 kW)
Maximum Thrust/Pullback 440,000 lbs. (200 Tonnes)
Drill Pipe Range II – 34 ft. (10.4 m)
Maximum Rotary Torque 60,000 ft-lbs. (81,350 Nm) @ 0 – 25 RPM
Maximum Breakout Torque 154,000 ft-lbs. (209,500 Nm)
Maximum Makeup Torque 101,700 ft-lbs. (137,900 Nm)

Company Info

135 U.S. Route 42
West Salem, OH
US, 44287


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