7300  140,000 ft-lbs  (190 knm) 

EXCAVATOR mount

LINEPULL 40,000 lb (178 kN)

DEPTH 155 ft (47 m) LM; 100 ft (30 m) SM

WEIGHT 110,000 lb (50,000 kg)*


The 7300 represents all of the defining features that make Watson rigs the most productive in the industry, while adding the benefits of an excavator mounted movable hydraulic rotary design. Still a one piece haul, this machine uses a revolutionary new design to achieve unmatched depths in the short mast configuration.  

Click here for more details (printable pdf)


1-800-927-8486 or email sales@watsonusa.com

*depends on configuration

7300 key advantages


  • LONG MAST DEPTHS WITH SHORT MAST HEIGHTS

    The revolutionary approach to a short mast drill allows the 7300 to remain under 28 feet and still reach drill depths of 90+ feet.  The machine can also be converted to a full long mast to achieve even greater depths.

  • TOP APPLIED KELLY CROWD SYSTEM

    Watson's top crowd system applies the downward force to the top of the kelly rather than through a rotary to outer bar locking system. The controllable outer bar eliminates the locks from the outer bar for crowding.  The wear and tear on the rotary from crowd forces is eliminated while also allowing the operator to drill straighter holes.  

  • LARGER TOOLS

    Clearance for a 14 (14.3) foot tool around the track corners at full reach and up to 6 ft (1.8m) diameter up the mast.  An 8 ft (2.4m) tool is shown easily clearing the tracks in the raised up drilling position.

  • SERVICEABILITY

    Hydraulic system separation between CAT excavator and the drill allow for better isolation and diagnosis of issues.  Open architecture hydraulic box results in easy access for service and repair.

  • interchangeable SQUARE friction OR ROUND LOCKING BARS

    Heavy duty Kelly bars made from high strength alloy steel are standard on Watson rigs. The 7300 has interchangeable inserts to allow for either square friction or round locking to suit your drilling needs.  

  • CONTROLLED FREEFALL SINGLE LAYER REAR MOUNTED WINCH

    Watson's proprietary controlled freefall winch achieves the performance of other freefall systems with even greater control over the tool.  Paired with a large diameter grooved drum and a rear roller, wire rope management is best in class.

  • PATENT PENDING ROUND LOCKING BARS

    Watson has always built the heaviest duty round locking kellys in the business. The latest generation incorporates patent pending features designed to eliminate the hassle of finding locks while vastly extend the time between servicing. With 4x the torque surface and 12x the crowd surface, customers are able to go years between refurbishing bars. Additionally, open bottom design allows easy drainage for slurry drilling. Call for details.

  • tri-drive HYDRAULIC ROTARY SYSTEM

    The triple drill motor design achieves max torque and max spinoff without clutches or gear shifting.  The spindle passage for a 22" bar is the largest in the industry allowing for more kellys with larger drive lugs.

  • PROVEN hydraulic RELIABILITY

    Time tested pilot controlled primary valve married to the Next generation CAT control system provide superior control/feel and easier diagnostics.  Manual levels on all section allow for even easier diagnostics or override.

  • balanced FOR DRILLING AT FULL REACH

    Triple grouser expandable undercarriage with a square foot print for 360 deg stability at full parallelogram reach (for short mast). 9'4" retracted to 13'7" expanded. Clearance around tracks for a14 foot tool.

  • TOP DRIVE ROTARY FOR SHORT MAST

    New evolution of short mast design, uses a top drive rotary which allows for the additional kelly elements under the rotary that allow for unmatched drill depths.

  • SINGLE LOAD CRAWLER

    Set up time is minimal without having to assemble or disassemble to transport.  This is achieved with a "boom forward" travel arrangement that allows rotary and kelly to be positioned under the mast.

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