785-825-1842 001-785-825-1842 785-825-1842 001-785-825-1842

8250LS Rotary Sonic Rig


Big Sonic Power

to run

20-ft. Tooling

The 8250LS Sonic Rig advances 20-ft. tooling for production drilling and has a 24-ft. 6-in. head travel.



Rotary Sonic Rig


The Geoprobe® 8250LS Rotary Sonic joins the family of Geoprobe® sonic rigs.  Currently in production drilling, the 8250LS runs 20-ft tooling and comes with many of the same features and options as the 8150LS.  Team Geoprobe® welcomes your inquiries at 1-785-825-1842

Why Geoprobe® Sonic?

New Sonic Machines...New Sonic Tools...New Sonic Success!

  • Comprehensive Sonic Training
  • Full-size and Mid-size Rigs
  • Sonic Service Support
  • Continous Sonic Product Development
  • Sonic Tooling In Stock
  • Exclusive Sonic Dual Tube Tubing

Features, Options & Accessories

Call us at 785-825-1842 for feature information.


8250LS Specifications
Width 90 in. 2,286 mm
Length (transport) 431 in. 10,947 mm
Length (deployed, extend fully retracted) 240 in. 6,096 mm
Length (deployed, extend fully retracted with rod handler deployed) 314 in. 7,976 mm
Height (normal transport) 118 in. 2,997 mm
Height (deployed; winch mast up) 435 in. 11,049 mm
Extension (fore and aft) 6 in. 152 mm
Drill Mast Dump (Vertical Travel) 36 in. 914 mm
Base Unit Weight 35,500 lb 16,102 kg
Unit Weight (With Typical Options) 37,000 lb 16,783 kg
Head Travel 294 in. 7,468 mm
Head Crowd/Pull Force 11,000/25,000 (lbs) 48 /111 (kN)
Head Feed Pressure Control (weight on bit) Standard
Head Sideshift 32 in. 813 mm
Head Tilt Out 90°  
Outrigger Travel 26 in. 660 mm
Engine CAT C7.1 Tier 3 Flex or Tier 4 final
Engine Rated Power 275 hp 205 kW
HP Limited Pump: Max Pressure 4,000 psi 276 bar
HP Limited Pump: Max Flow 100 gpm 378 l/min
Hydrostatic Pump: Max Flow 55 gpm 208 L/min
Max Angle Drilling Ability Off Vertical  45°
Approach / Departure Angle in Transport 24°
Ground Speed 1.5 mph  2.4 km/hr 
Sonic Head Specifications
Max Oscillator Speed 150 Hz
Dynamic Force at Max Oscillator Speed 50,000 lbf 222 kN
(High Torque / Low Speed) 
4,000 ft-lbf /
90 rpm
5,423 N·m /
90 rpm
(Low Torque / High Speed)
2,500 ft-lbf /
140 rpm
3,390 N·m /
140 rpm
Standard Winch Specifications
Line Pull 2,500 lbf 11.12 kN
Line Speed 110 fpm 34 m/min 
Triplex Water Pump Specifications
Max Pressure 750 psi 52 bar
Max Flow 70 gpm 265 L/min
Double Wrench Breakout Specifications
Clamp Force 0 – 21,000 lbf 0 – 93.4 kN
Casing Size Compatible 2 – 14 in. 51 – 350 mm
Vertical Travel 9 in. 229 mm

*Unit specifications are subject to change without notice.




Overview & Features


Geoprobe® 8250LS Rotary Sonic Rig
Type: Preview, Sonic


High-Speed Coring Head for Sonic
Type: Features, Sonic


Indexing Rack for 10-foot Sonic Tooling
Type: Features, Sonic


Sonic Rod Handler
Type: Features, Sonic


Geoprobe® Exclusive Quick Change Hook
Type: Features, Sonic

Tools & Equipment


Sonic Center Rod Guide
Type: Tooling, Sonic


Geoprobe® Sonic Double Wall 4.5 in. (SDW45)
Type: Tooling, Sampling, Sonic


Sonic Weighted Wireline Sampling System
Type: Tooling, Sonic



No training videos are available for this machine. For a full list of available videos, click here.

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