GT35 DRILL RIG

The GT35 model is designed to drill up to 650ft deep boreholes productively but can reach depths beyond 1,300 feet (400 meters) 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.

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GT35

35,000 LBS
PULL-BACK
290HP
DOOSAN ENGINE
20FT DRILL RODS
880FT ON BOARD RODS
DRILL BEYOND
650FT

SPECIFICATIONS

DIMENSIONS & WEIGHT

Length 38′ 7″ (11.8m)
Width 7′ 8″ (2.4m)
Height 10′ 3″ (3.2m)
Weight 44,000 lbs – 55,000 lbs
(20,000 kg – 25,000 kg)(Actual weight will vary depending on the options selected and installed, e.g. Rods.)

DERRICK & FEED SYSTEM

35,274 lbs (16,000 kg) pull-back
14,330 Ibs (6,500 kg) push-down
24′ 7″ (7.5 m) top head stroke

DRILL PIPE & CASING

3 ½” (88.9 mm) × 20′ (or 6 m)
40 rod capacity – 880′ (or 264 m)
Max diameter 12 ½” (320 mm)

ENGINE

Doosan DL08 Tier 4 (Stage 5)
290 hp (213 kW)
Typical engine speed – 1,400 rpm – 1,600 rpm
Max engine speed – 1,800 rpm

ROTARY DRILL HEAD

Variable twin Eaton motor head with 2.4″ (60 mm) thru-hole
0-135 rpm @ 6,195 lb-ft (8.4 kNm)
0-260 rpm @ 3,097 lb-ft (4.2 kNm)

CRAWLER (TRACK) BASE

Doosan Solar 75
Steel with rubber pads
Wireless remote travel

GTD STANDARD FEATURES

Sideshift – Sliding Drill Head
Swivel & Floating Spindle Sub
Height Adjustable Working Table
Double Clamps – One Rotating
Hydraulic Centralizing Rollers
Hydraulic Breakout Chain Wrench
Auxiliary Hydraulic Ports and Controls
Main Winch – 11,000 lbs (5,000 kg)
Wire/Sandline Winch

Water Injection Mist Pump
DTH Lube System
Rod Rack & Rod Loader
Hydraulic Welder & Generator (7.5Kw)
Self Loading Jacks/ Outriggers
Air Compressor: 24 cfm (673 lpm), 130 psi (9 bar)
Centrifugal Pump: 4x3x13 Single-stage
4.5 x 5.5 Triplex Piston Pump:
264 gpm @ 580 psi (1,000 lpm @ 40 bar)
Tablet Computer & Engine Diagnostics Software

OPTIONS

Hydraulic Sliding Rod Wrench
Triple Clamps
Angled Drilling
Safety Cage
Sandline Winch Length 1,000′ – 6,500′ (300m – 2,000m)

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SPECS CAN BE INFORMATIVE...
VIDEOS PROVIDE EVIDENCE...

It's why we share real-world drilling footage to validate why our equipment is the No.1 choice for geothermal industry leaders. See for yourself below:

GEOTHERMAL DRILLING RIGS

The GT series drill rigs are proven for their high productivity in Geothermal and Water Well drilling in both domestic and commercial use. From our flagship Double-Head rig, featuring a Cummins X12 engine, to our smallest compact rig with Doosan power. All models are versatile machines, with full capability for Mud, Air or DTH drilling.