GL300 Geothermal Drill Rig | FECON



The Fecon GL300 Geothermal Drill is a rubber track drill rig designed to meet the needs of the residential and small commercial geothermal industry. When it comes to drilling geothermal ground loops, crews want efficient access to the drill hole site, advanced drilling capabilities, and the ability to remove equipment with minimal environmental disruption. Get in. Drill down. Get out. The Fecon GL300 Drill rig is highly nimble, self-contained, and a highly productive geothermal drilling solution.

  • Robust I-R 300 CFM-200 PSI compressor
  • Hydraulic powered drill mast
  • Highly maneuverable with low residential impact

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The Fecon Geothermal GL300 geothermal loop drill is built with the highest quality components. The GL300 includes a robust I-R 300 CFM-200 PSI compressor powered by a Kubota 99hp diesel engine for plenty of down hole air capability. The drill mast is powered by a hydraulic motor providing high torque to both the drill head and the drive chain. The GL300 accepts 10 ft. (3 m) drill rods with hydraulic top and bottom break out features requiring minimal effort to add or take out drill rods.

The low center of gravity along with the narrow footprint and low profile of the GL300 makes it highly maneuverable in all kinds of terrain and narrow openings. The rubber tracks and low PSI together produce little ground disturbance. The GL300 packs impressive features in a compact unit, providing greater maneuverability and ease of operation, with little environmental impact.

Geothermal ground loops for residential and small commercial heating & cooling systems often require a series of holes with depths between 120’-200’ (36-60 m), and on occasion 300’ (91 m). The GL300 improves crew efficiency by having 300’ (91 m) of depth capacity as well as auger, air hammer, and selective wet drilling options at the location of the holes. No running air lines from an air compressor located at the street, and less need of carrying additional drill rod from the truck.

The GL300 is so mobile and quick to set up, if a hole is partially drilled and determined not viable, the crew may pull out and relocate the drill to put another hole close by without undue effort. Ease of mobility gives the GL300 an advantage over a large trailer or truck-mounted drill. Standard rod rack carries 210’ (64 m) of drill rod onboard.

Installing Geothermal Ground Loops
On properties with existing structures or landscaping, the low impact rubber tracks provide great benefit as well. Unloading and loading time is minimized since the machine can drive onto paved surfaces or the front lawn. Where truck-mounted or steel track drill rigs would likely rip up the grass and landscape, adding cost for repairs to the job, the rubber tracked GL300 softly walks across the lawn.

Drilling ground loops for geothermal heating systems on properties with existing structures can be a challenge. The GL300 can counter-rotate and the operator has great visibility to move the drill into areas not accessible to traditional drill rigs. Traditional drill rigs mounted on trucks can be very large with poor maneuverability. To gain access where drilling must take place, fences may need to be removed and re-installed, or mature trees may need to be cut down. In some cases a truck or steel-track mounted drill may not be able access the desired work area at all.

The drills come standard with plumbing to introduce a bentonite mud solution for selective wet drilling, or water for high-pressure/low-volume mud drilling. The geothermal GL300 comes standard with the mud valve.


  • Robust I-R 300 CFM-200 PSI compressor
  • Mud Valve Standard
  • Highly maneuverable



Base Machine Weight10,379 lbs | 4707 kg
Overall Length x Width x Height194” x 73” x 94” | 4298mm x 1,854mm x 2,387mm
Engine Make/ModelKubota Diesel
Horsepower46hp | 34.3kw
Maximum RPM2800
Hydrostatic Transmission2 Speed
Travel Speed (low/hi)0/7mpg | 0/11.3 kph
Rubber Track Width14” | 355mm
Rubber Track Ground Contact78” x 14” | 198mm x 355mm
Gradeability25 degree
Counter Rotating TracksYes
Swing Lower RollsYes


Hydraulic Operating Pressure300psi / 26gpm | 206bar /98.4lpm
I-R Compressor300cfm / 200psi | 8.5m3 /13.8bar
Compressor EngineKubota Diesel
Horsepower99hp | 73.8kw
Maximum RPM2600
Chain Drive100 Series
Push Down / Pull Back5,700 lbs / 9,500 lbs | 2586 kg / 4309kg
Hydraulic CoolingElectric Fan – 1.5 Heat Exchange
Drill Rods10’ length / 2.5” diameter | 3,048mm / 63.5mm diameter
Variable RPM on Drill Stem0-250rpm
Hydraulic Drill Rod Break OutTop and Bottom


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