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  • 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
    • SUCCESS!

    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

    Geoprobe® 2.25 in. Spring Assisted Swivel Pull Cap
    Type: Tooling, 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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