Geothermal Drilling Equipment & Complete Solutions
Bench blasting is won or lost on three numbers β hole diameter, bench depth and rock hardness. Tell us those and we size the rig, the air package and the tooling as one system.
Geothermal wells are drilled hot, hard and deep. The rig, the hammer and the air package have to be chosen for temperature and rock, not for headline numbers.
Find the Right Rig for Your Mine
What Determines the Right Drill Rig?
Click a card to expand.
1. Temperature changes the tooling
Down-hole temperatures degrade lubricants and seals faster than surface drilling. Specify high-temperature rated hammers and seals, and plan a shorter service interval than for a quarry of the same rock.
2. Air demand grows with depth
Deeper holes and larger diameters raise both pressure and air volume. Grouping one high-pressure compressor with several rigs on the same pad usually beats one compressor per rig.
| Well depth | Typical configuration |
|---|---|
| < 300 m | Mid-size DTH rig + single-stage mobile compressor |
| 300β1000 m | High-pressure rig, 20β25 bar class compressor |
| > 1000 m | Heavy rig, high-pressure fleet supply |
3. Site logistics on remote fields
Geothermal fields are often off-grid. Confirm engine derating for altitude, fuel quality and the spares kit before the machines ship.
Rig Selection
Grouped by duty. Filter to narrow the range.
10 models available
Large-Diameter (203 mm +)
KW360
- Hole
- 115β305 mm
- Depth
- 350 m
- Method
- DTH
CDC-800
- Hole
- 140β350 mm
- Depth
- 800 m
- Method
- DTH
CZT-1200
- Hole
- 140β350 mm
- Depth
- 1200 m
- Method
- DTH
KSC-1300
- Hole
- 105β350 mm
- Depth
- 1300 m
- Method
- DTH
CDC-600K
- Hole
- 105β350 mm
- Depth
- 600 m
- Method
- DTH
CDC-450J
- Hole
- 105β350 mm
- Depth
- 450 m
- Method
- DTH
KW180
- Hole
- 140β350 mm
- Depth
- 180 m
- Method
- DTH
CDC-600
- Hole
- 90β850 mm
- Depth
- 600 m
- Method
- DTH
CDT-800J Trailer water well drilling rig
- Hole
- 90β850 mm
- Depth
- 800 m
- Method
- DTH
CDT-600 Trailer Water Well Drilling Rig
- Hole
- 89β950 mm
- Depth
- 600 m
- Method
- DTH
Matching Air Compressors
Air demand is set by the hammer, not the rig. Discharge pressure must cover the hammer rating and free air delivery must cover air consumption plus margin.
DTH Hammer, Bits & Rods
Rig + Compressor + Tools = Complete System
The tooling is matched to the same hole diameter and air package as the rig above β a system, not a shopping list.
Request This Package
Frequently Asked Questions
Rig selection
Which drilling rig should I use for geothermal drilling?
It depends on hole diameter and depth. In our current range, 29 rig models have a published hole range for this work; the largest-capacity three are KG550 (hole 115β254 mm), KT20S (hole 135β254 mm), KT30 (hole 195β254 mm). Send us hole diameter, depth and rock type and we will confirm the fit.
Which drilling rigs are recommended for geothermal drilling?
Based on the published hole range of the rigs listed for this application, the widest-coverage models are CDT-600 Trailer Water Well Drilling Rig (up to 950 mm), CDC-600 (up to 850 mm), CDT-800J Trailer water well drilling rig (up to 850 mm). Final selection depends on hole diameter, bench depth and rock conditions β use the equipment selector for a parameter-matched shortlist.
What is the maximum drilling depth for geothermal drilling?
The deepest published capability among the listed models is 1300 m (KSC-1300, CZT-1200). Note that economical depth depends on method and tooling: a split rig with a separate compressor is normally economical to about 25 m per bench, while deeper holes need matched rod strings.
Which drilling tools match the rigs used in geothermal drilling?
The parameter-matched tooling for the listed rigs is hammers: K10; rods: 76mm Drill Rods, 102mm Drill Rods. Tool selection follows the hammer class and the required hole diameter.
How many models are available for geothermal drilling?
10 rig models are currently listed against this application, and matched compressors, hammers, bits and rods are linked to each of them. The complete package can be assembled and quoted as one configuration.
Hole diameter
What hole diameter range can be drilled?
Across the rigs we list for this application the published hole range spans 32β254 mm. Depth capability and rock hardness decide which end of that range applies β tell us the diameter and bench depth and we will match the model.
What hole diameter range can be drilled in geothermal drilling?
Across the rigs listed for this application the published hole range spans 89β950 mm. Smaller diameters favour mid-size rigs with higher drilling frequency; larger diameters need a heavier carrier and matched air volume.
Air compressor
What air compressor is required?
Air demand is set by the hammer, not the rig. The compressors we list for this application cover 5β45 mΒ³/min and discharge pressures from 8 to 35 bar. Match the compressor's free air delivery to the hammer's consumption (plus a 10β15% margin) and make sure discharge pressure covers the hammer rating.
What air compressor is required for geothermal drilling?
Air demand is set by the hammer, not the rig. Parameter-matched compressors for the rigs in this application include LGCY-33/25, KSCY-550/13. Match the compressor's working pressure and free air delivery to the hammer class you intend to run.
Drilling method
β
High altitude & site conditions
Which technical guide should I read first for geothermal drilling?
Start with the selection guides linked on this page (water-well-drilling-rig-selection and how-to-choose-a-dth-drilling-rig). They explain how hole diameter, bench depth and rock hardness drive the rig and compressor choice.
Download the Catalogue
Full model range, specifications and configuration tables.
Tell Us About Your Mining Project
Three ways in β pick the one that fits how far your project has come.
Geothermal Drilling