EX40  43,000 ft-lb   (58 kNm)

LINEPULL   18,000 lb  (79.2 kN)

DEPTH        79 ft         (24.095 m)

WEIGHT      84,000 lb  (38,136 kg)*


The EX40 ExcaDrill provides superior production by utilizing the full power of a standard 15-25 metric ton excavator combined with a powerful single layer freefall Kelly winch. Dual Drive rotary provides 43,000 ft-lbs torque, 150 rpm spinoff and up to 6 bars making it ideal for 18" to 72" shafts.

Click here for ADSC article on new Excadrill EX line.


Click here for more details (Printable PDF)


For further inquiries please call 800-927-8486

email sales@watsonusa.com

or submit web inquiry below.


*varies depending on excavator mount

EX40 key ADVANTAGES


  • DUAL DRIVE HYDRAULIC ROTARY SYSTEM

    Dual Drive Rotary enables shiftless operation from 43,000 ft-lbs to 150 rpm spinoff. Without clutches, gear changes or sensors, simplicity, and thus reliability is achieved.

  • FULL EXCAVATOR POWER

    Hydraulics are designed to harness the full horsepower of the excavator and deliver to both the tool and the winch for maximum production.

  • LARGER DIAMETER ROTARY

    The larger the rotary, the bigger the Kelly bars, the bigger the bearings, the less wear and tear.  Larger diameter also means more kelly bars for greater depth without trading off kelly tube thickness and drive lug area.

  • FULL length TOP CROWD

    Full length top applied crowd force drills straighter holes and simplifies Kelly locking.

  • SINGLE LAYER, GROOVED KELLY WINCH drum

    The Kelly winch is fitted with a large diameter grooved winch drum big enough to keep all of wire rope on one layer and a rear roller.  With this combination, speed and consistent linepull are achieved along with excellent rope management and long rope life.

  • PROPRIETARY CONTROLLED FREEFALL KELLY WINCH

    Watson's proprietary controlled freefall winch achieves the performance of prior freefall systems with even greater control over the tool while rapidly descending down the hole. Coupled with a 2-SPEED raise function and the EX has unbeatable cycle times.

  • OPTIMIZED and isolated HYDRAULIC INTERFACE

    Integration to the excavator has been carefully managed to limit the overlap of the systems by providing dedicated valve for the drill. By cleanly separating the two systems, diagnostics, servicing and maintenance of the drill can be distinct from the excavator.

  • INTERCHANGEABLE SQUARE friction OR ROUND locking KELLY BARS

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

  • 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 extending 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.

  • TOOL REACH

    Boom mounted design brings versatility unmatched by mobile mounted rigs. Tool reach of more than 10 ft from the tracks can be achieved on the proper excavator.

  • REDUCED WEIGHT and smaller excavator classes

    Unique trunnion & rotary design transfers drilling loads directly from the rotary to the mast thereby reducing weight and stress on the mast.  This weight savings allows the machine to be mounted on smaller excavator classes than previous generations of Excadrills.

  • CUSTOMIZATION to fit customer application

    WATSON is a custom manufacturer that welcomes the opportunity to customize rigs.  EX rigs can be mounted to numerous makes and models of excavators and further modified to fit specific applications requirements like railcar mount, 10' mast heights, zero turn, etc.

Typical applications

The EX40 Excavator attachment offers the mobility and reach of an excavator combined with the reliability, power and speed of a Watson Drill rig, making it useful in a wide range of applications.

  • Civil Roadways
  • Caissons
  • Transmission lines
  • Elevator shafts
  • Light Commercial
  • Rock drilling
  • Roadway Signs, guardrails
  • Electrical distribution

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