Watson

As a leading innovator in the drilled shaft industry, Watson is uniquely qualified to design and build drill rigs (piling rigs) for drilled shaft (bored pile, caisson) construction. Having originally been contractors, Watson understands the importance of using the most dependable, versatile and productive equipment available.
Watson offers a wide range of drill rigs built rugged to provide years of proven field performance and maintain a high resale value. Our line includes Crawler Based and Truck Mounted Drill Rigs, Crane Attachments and Excavator Based Attachments for use in drilled shaft applications within the foundation, utility, oilfield and other industries.
Please contact us to discuss your specific job requirements.


The Model 1100

The Model 1100 is a self-contained drill unit specifically designed for mounting on a 6x4 truck or a crawler type undercarriage. It incorporates a two-element dry kelly (1 or 3 element optional). A low headroom version with a short mast is also available.

Capacity
Typical Hole Dia 24 to 48 in (60 to 120 cm)
Hole Depth 50 ft (15.2m)
Performance
Torque 41,600 ft-lb (57 kNm)
Hoist 18,000 lb (80 kN)
Crowd 23,000 lb (102 kN)
Weights
Truck Unit 45,900 lb (20,800 kg)
Crawler Unit 32,310 lb (14,700 kg)


The Model 2100

The Model 2100 is a medium size drill unit that is fast, easy to operate and highly productive. This drill model is designed for mounting on a three-axle truck or on a crawler type undercarriage.

Capacity
Typical Hole Diameters 30 to 54 in (76 to 137 cm)
Hole Depth 60 ft (18.3 m)
Performance
Torque 56,000 ft-lb (76 kNm)
Hoist 18,000 lb (80 kN)
Crowd 24,000 lb (107 kN)
Weight
Truck Unit 54,200 lb (24,600 kg)
Crawler Unit 56,000 lb (25,400 kg)


The Model 2500

The Model 2500 provides high production and application versatility in a drill unit that can be easily moved or transported. The Model 2500 is available mounted on a truck/carrier or on a crawler-type undercarriage with an expanding carbody

Capacity
Typical Hole Diameters 36 to 76 in (90 to 193 cm)
Hole Depth 90 ft (27.4 m)
Performance
Torque 81,000 ft-lb (110 kNm)
Hoist 25,000 lb (111 kN)
Crowd 38,000 lb (169 kN)
Weight
Truck Unit 71,200 lb (32,300 kg)
Crawler Unit 64,000 lb (29,000 kg)


The Model 3100

The Model 3100 is a strong, powerful drilling machine capable of drilling large diameter drilled shafts. The torque and crowd available with the Model 3100 provide capacity to drill in difficult conditions including hard rock and boulders. The Model 3100 is available mounted on a truck/carrier or on a crawler-type undercarriage with tilt style carbody.

Capacity
Typical Hole Dia 48 to 96 in (122 to 244 cm)
Hole Depth 120 ft (36.6 m)
Performance
Torque 113,000 ft-lb (154 kNm)
Hoist (Powershaft driven) 30,000 lb (134 kN)
Crowd 50,000 lb (223 kN)
Weights
Truck Unit 80,000 lb (36,300 kg)
Crawler Unit 90,000 lb (40,800 kg)


The Model 3110 "Eagle"

The Model 3110 "Eagle" is a strong, powerful drilling machine capable of drilling large diameter drilled shafts. The torque and crowd available with the Model 3110 Eagle provide capacity to drill in difficult conditions including hard rock and boulders. The Model 3110 Eagle is available mounted on a truck/carrier or on a crawler-type undercarriage with tilt style carbody.

Capacity
Typical Hole Dia 48 to 96 in (122 to 244 cm)
Hole Depth 120 ft (36.6 m)
Performance
Torque 113,000 ft-lb (154 kNm)
Hoist (Hydraulic winch driven) 30,000 lb (134 kN)
Crowd 50,000 lb (223 kN)
Weights
Truck Unit 80,000 lb (36,300 kg)
Crawler Unit 90,000 lb (40,800 kg)


The Model 3400CM

The Model 3400CM, the largest, most powerful drill unit manufactured by Watson, Inc., is specifically designed to drill large diameter shafts up to 10 feet. Standard drill unit is mounted on a crawler-type undercarriage.

Capacity
Typical Hole Diameters 48 to 120 in (122 to 305 cm)
Hole Depth 120 ft (36.6 m)
Performance
Torque 160,000 ft-lb (217 kNm)
Hoist 38,000 lb (169 kN)
Crowd 60,000 lb (267 kN)
Weight
Crawler Unit 165,000 lb (74,900 kg)


The Model 4400CM

The Model 4400CM is a Hydraulic Movable Rotary Rig. It is specifically designed to drill large diameter shafts up to 12 feet as well as get up over and turn casing. Standard drill unit is mounted on a crawler-type undercarriage.

Capacity
Typical Hole Diameters 24 to 144 in (76 to 365 cm)
Hole Depth 135 ft (41.1 m) standard
Performance
Torque 150,000 ft-lb (203 kNm)
Hoist 60,000 lb (267 kN)
Crowd 60,000 lb (267 kN)
Weight
Crawler Unit 165,000 lb (74,900 kg)


The Model 5000 Crane Attachment

The Model 5000 Crane Attachment is an extremely versatile and powerful drilling unit typically mounted on a 40 ton or larger crane. Various options are available including a hydraulic slide base and kelly roller drives for 6 inch, 7 inch or 8 inch outer kellys and up to 4 telescoping kellys.

Capacity
Typical Hole Diameters 48 to 96 in (122 to 244 cm)
Hole Depth 120 ft (36.6 m) Typ
(Varies with kelly configuration)
Performance
Torque 113,000 lb ft (153 kNm)
Optional Crowd 30,000 lb (134 kN)
Mounting
Minimum Crane Capacity 40 ton (36t)
(Subject to depth requirements)


The Model EDT-7 ExcaDrill Excavator Attachment

The Model EDT-7 ExcaDrill Excavator Attachment is designed to increase the utilization of hydraulic excavators by using the excavator hydraulics to power the drill attachment. The Model EDT-7 incorporates a hydraulic rotary with dual variable displacement motors.
The rotary torque is the same in forward and reverse.

Capacity
Typical Hole Diameters 42 to 54 in (107 to 137 cm)
Hole Depth 86 ft (26.2 m)
(with 23’4" (7.1 m) Mast)

Performance
Standard Torque 54,000 ft-lb (73 kNm)
(Higher torque option available)
Hoist 25,000 lb (111 kN)
Crowd 20,000 lb (89 kN)

Weight
Drill Unit 15,000 lb (6,810 kg)
Req'd Excavator Class 35 to 45 tons (32 to 41 t)


The Watson LDH Track Conversion Kit

The Watson LDH Track Conversion Kit takes the upper unit of a standard LDH and mounts it on a crawler style undercarriage with minimal modifications to the upper unit. The Conversion kit features a geared bearing swing system powered by dual hydraulic motors with automatic swing brakes. The upper unit is mounted on a heavy duty sliding frame which allows increased drill radius. The undercarriage is a 3100 Watson tilt style carbody with pilot controlled tracks. The overall travel height allows the unit to be shipped without removing the mast.

Additional improvements include a counterweight, new slide cylinders, a larger oil reservoir, an oil cooler and a hydraulic swivel for 360 degree rotation.

Conversion can be done at Watson’s facilities or the conversion kit can be shipped for on-site installation.

Performance
Swing 360 degrees with automatic braking
Tilt +/- 5 degree tilt about rig centerline
Drill Radius Increased to 156 in (396 cm)
Height & Weight
Overall Shipping Height 12 ft 10 in
Crawler Unit 86,000 lb (39,000 kg)


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Please contact T A Drilling Ltd at
Sidney Little Road, Churchfields Ind Est. St Leonards on sea, E/Sussex TN389PU
Phone +44 (0) 1424-854-112 | Fax +44 (0) 1424-854-231