Diedrich D-120 All Terrain Rig. SPT Autohammer.
The Diedrich D-120 is a versatile and powerful track-mounted drill rig commonly used for geotechnical, environmental, and exploration drilling. It’s known for its rugged build, high torque, and adaptability to various drilling methods.
Here are the general specifications and features of the Diedrich D-120 (truck-mounted):
🔧 Drilling Capabilities:
Torque: 21,550 ft-lbs
Rotary Speed: Multiple speed ranges; typically from 0–756 RPM
Drilling Methods:
Hollow Stem Auger
Mud Rotary
Air Rotary
Coring (Diamond, NWL, HWL)
SPT Sampling
Wireline Rock Coring
🛞 Mounting & Mobility:
Mounted on a heavy-duty Ardco articulating offroad chassis
Hydraulic leveling jacks
⚙️ Rig Components:
Feed System:
Hydraulic vertical feed
Stroke length: ~72 in
Pullback: Up to 30,000 lbs
Pulldown: ~18,000 lbs
Winches: Wireline, main line and 2 auxiliary winches (hoist capacities vary)
🛢️ Power & Hydraulics:
Powered by a deck engine (John Deere)
Hydraulic system drives rotary, feed, and winches
Onboard mud pump
📏 Dimensions & Weight (Approximate):
Height (mast up): ~30 ft
Transport height (mast down): 12 ft
Length: 30 ft overall
Weight: 30,000 lbs
🛠️ Equipment:
SPT auto hammer
Wireline winch
Tool boxes and rod racks
Breakout wrenches
Water or mud pump (e.g., Moyno or centrifugal)
Automatic SPT hammer
🧰 Typical Applications:
Geotechnical investigations
Environmental site assessments
Soil and rock sampling
Monitoring well installation
Leave a Reply