Boring Company Prurfock 3 and the new Prufrock 4 tunneling machines can only tunnel about 11 hours per day. There are limitations are maintenance and how they have to stop tunneling to put in the ...

Astec DD-3238 has a thrust/pullback force of 32,000 pounds and can deliver up to 3,800 pounds-feet of rotary torque. Powered by a 125-hp John Deere turbocharged diesel, it has an onboard FMC mud pump ...

The Straightline HDD range includes three models, the largest of which is the 3550. This machine features 35,000 pounds of thrust/pullback force and a rotational-torque rating of 5,500 pounds-feet ...

The Vermeer® D80x100 Series II Navigator® HDD is designed with the operator in mind. Drilling functions are integrated into the thrust and rotation joystick controls, providing fingertip control. The ...