Used Drilling Rigs for Sale

Used Drilling Rigs for sale. Piling Broker connects contractors and dealers buying and selling used Drilling Rigs worldwide.

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GT45 Geothermal Drill Rig image
USED
Contact seller for pricing
The GT45 model is ideal for drilling 800ft – 1000ft boreholes productively using mud, air, and hammer drilling methods. It is equipped with our unique rod rack and loading system, which is the most robust, reliable, and safest rod handling system on the market, ensuring maximum safety and efficiency in all drilling operations. The GT series of drill rigs are known for their high productivity and reliability in geothermal drilling, with proven performance in both domestic and commercial applications around the world. These rigs are the number one choice for leading industry professionals, thanks to their versatility and ability to handle a variety of drilling conditions with precision and efficiency.

United States

GTD Desco
Drilling Rigs
900 HR
2025

Drilling Rigs by brand

Foundation drilling rigs bore the shafts for piles, from kelly drilling with augers and buckets through continuous flight auger (CFA) work to displacement and double-head techniques. The rig supplies rotary torque through a kelly bar or drive head, together with the crowd force needed to advance the tool.

Choosing between machines usually comes down to the pile diameter and depth you need to reach, the ground you are working in, and the room available on site. Rotary torque, maximum drilling depth and the type and length of kelly bar are the figures most buyers compare first.

Frequently asked questions

What should I look at first when comparing used drilling rigs?

Start with rotary torque and maximum drilling depth, because together they set the pile diameter and depth the rig can realistically achieve. Then check the kelly bar type and length, the condition of the mast and undercarriage, and the recorded operating hours.

What is the difference between kelly drilling and CFA?

Kelly drilling excavates in stages with an auger or bucket on a telescopic kelly bar, and usually needs casing or support fluid in unstable ground. CFA drills to depth with one continuous auger and pumps concrete through the stem as it is withdrawn, which is faster and quieter but less suited to very deep or large-diameter piles.

Do used drilling rigs come with tooling?

Not always. Augers, buckets, core barrels and kelly bars are frequently sold separately from the rig, so confirm exactly what is included before agreeing a price.