Ditch Witch AT40 All Terrain Directional Drill
All Directional Drills
Optimized for industry-leading performance and productivity when drilling in hard rock conditions, the Ditch Witch AT40 All Terrain is designed with an advanced version of the proven Ditch Witch All Terrain drilling system. The updated, two-pipe system boosts power to the bitâ33 percent more torque than the competition. The drill leverages the next-generation features of the JT40 model so you get increased jobsite cycle times, improved durability and greater control.
Equipment Features
Featured Content
The AT40 All Terrain is equipped with a modular stake down system with two available options, standard and heavy-duty, that can now be feathered for more precise control.
The advanced remote control gives operators the ability to set up the rig outside of the cab allowing more precise positioning of the unit on the job.
The controller includes multi-mode ground drive; dual, independent stabilizers, stake down, cab traverse, and dual pivot.
POWER (TIER 3, LRC)
U.S.
METRIC
Engine
Cummins QSB4.5
Fuel
Diesel
Cooling medium
Liquid
Injection
Direct
Aspiration
Turbocharged & charge air cooled
Number of cylinders
4
Displacement
275 in3
4.5 L
Bore
4.21 in
107 mm
Stroke
4.88 in
124 mm
Manufacturer’s gross power rating
148 hp
110 kW
Rated speed
2,300 rpm
Emissions compliance
EPA Tier 3
EU Stage IIIA
DRILLING FLUID SYSTEM
U.S.
METRIC
Pressure, max
1,000 psi
69 bar
Flow, max
70 gpm
265 l/min
HIWS1 PIPE
U.S.
METRIC
Length of drill pipe, nominal
180 in
4.57 m
Diameter of drill pipe, tool joint end
3.10 in
79 mm
Diameter of drill pipe
2.63 in
67 mm
Bend radius, min
145 ft
44 m
Weight of drill pipe
165 lb
75 kg
Weight of drill pipe & large box (35 pipe)
6,915 lb
3140 kg
Weight of drill pipe & small box (15 pipe)
3,287 lb
1490 kg
OPERATION
U.S.
METRIC
Spindle speed, max
225 rpm
Spindle speed, max (AT inner spindle)
280 rpm
Spindle torque, max
5,500 ft·lb
7457 N·m
Spindle torque, max (AT inner spindle)
2,000 ft·lb
2760 N·m
Carriage thrust travel speed
180 fpm
55 m/min
Carriage pullback travel speed
180 fpm
55 m/min
Thrust force
40,000 lb
178 kN
Pullback force
40,000 lb
178 kN
Backreamer diameter
Soil dependent
Ground travel speed
Forward/reverse
3 mph
4.8 km/h
POWER (TIER 4)
U.S.
METRIC
Engine
Cummins® QSB4.5
Fuel
Diesel
Cooling medium
Liquid
Injection
Direct
Aspiration
Turbocharged & charge air cooled
Number of cylinders
4
Displacement
275 in3
4.5 L
Bore
4.21 in
107 mm
Stroke
4.88 in
124 mm
Manufacturer’s gross power rating
160 hp
119 kW
Rated speed
2,300 rpm
Emissions compliance
EPA Tier 4
EU Stage IV
Equipped with a 70-gpm, 1,100-psi mud pump, the AT40 All Terrain has increased fluid course from the mud pump to the swivel, for more downhole flow capabilities.
The machine includes a patent pending reversible pipe box for added jobsite versatility.
Patent-pending open-sided vise wrenches on the unit are rotated toward the operator enhancing visibility.
The drill features a unique add-a-pipe design, which allows operators to manually insert additional sticks of drill pipe when pipe runs out, improving overall productivity.
WEIGHT CONFIGURATION
U.S.
METRIC
Cab option
690 lb
310 kg
Standard anchor option
750 lb
340 kg
HD anchor option
1,290 lb
590 kg
Deduct Tier 3 engine option
165 lb
70 kg
The machine provides industry-leading visibility with the best view to all critical vision points, including ground entrance, wrenches, shuttle-retract location, and rear connection.
The AT40 All Terrain is equipped with the choice of a fully enclosed cab, with all tinted, glass side paneling, or an open operator’s station.
The ergonomic station was designed specifically for an HDD operator, featuring a heated seat with adjustable suspension and increased legroom.
The operator’s platform is equipped with telescoping capability providing the optimal drilling view for improved jobsite operations.
Equipped with two seven-inch LED screens for better visibility into all machine functions, diagnostics, and bore tracking information.
A real-time carriage-position indicator provides operators insight to the exact carriage position for increased productivity and intuitive operation.
The machine is equipped with radial operator control (ROC)—the multifunctional controller is highlighted on the machine display when activated for improved control efficiency.
DIMENSIONS
U.S.
METRIC
Length, mobiling
295 in
7.50 m
Length, trailering
290 in
7.37 m
Width, w/open station
89 in
2.26 m
Width, w/cab
93 in
2.36 m
Height, w/cab
114 in
2.90 m
Operating mass, no pipe
21,600 lb
9800 kg
Entry angle
20-29°
Angle of approach
17°
Angle of departure
17°
FLUID CAPACITIES
U.S.
METRIC
Hydraulic reservoir
17 gal
64 L
Fuel tank
56 gal
212 L
The AT40 All Terrain is designed with an advanced, two-pipe drilling system for industry-leading power to the bit. The enhanced system boosts power and productivity when drilling and steering in hard rock conditions.
The inner pipe works as a mechanical motor, driving the bit during the bore, and the outer pipe thrusts the bit forward while steering the drill shaft. During backreaming, the outer pipe transmits full machine torque downhole.
All Terrain technology enables enhanced rock drilling at a low fluid level, decreasing overall jobsite waste, minimizing cleanup and reducing environmental impact.
The optimized system utilizes true 15-ft length drill pipe, allowing a total of 360 feet of drill pipe to fit onboard for reduced jobsite cycle times.
Patented All Terrain connection provides a more reliable connection for optimized performance and steering.
The RockMaster®All Terrain housing has a modular design that allows it to adapt to two different sizes of bits, allowing a 2.875 and 3.5 regular API connection.
The housing features an industry-exclusive, double-layer seal design with high-capacity bearings to increase downhole life and reliability, which minimizes maintenance and cuts any associated rebuild costs in half.
A patented, steering-offset design eliminates the need for a universal CV joint, reducing fatigue in shaft and allowing a two-degree bend for more effective and responsive steering in hard rock conditions.
ALL TERRAIN PIPE
U.S.
METRIC
Length of drill pipe, nominal
180 in
4.57 m
Diameter of drill pipe, tool joint end
3.75 in
95 mm
Diameter of drill pipe
3.07 in
78 mm
Bend radius, min
170 ft
52 m
Weight of drill pipe
231 lb
105 kg
Weight of drill pipe & large box (24 pipe)
6,350 lb
2880 kg
Weight of drill pipe & small box (12 pipe)
3,450 lb
1560 kg
Equipped with a 160-gross-hp, Tier 4 Cummins® diesel engine, the AT40 All Terrain provides 14 percent more horsepower than competitive models in its class. A Tier 3 engine option is available for less regulated countries.
With 40,000 pounds of thrust and pullback, the AT40 All Terrain provides 30 percent more thrust in a more compact unit than competitive models in its class.
The machine offers an innovative two-speed, rotational drive system, producing 5,500 ft·lb of torque for greater efficiency and uptime.
The newly updated hydraulic platform utilizes the Ditch Witch-proven technology to provide the most efficient power downhole.
The AT40 All Terrain is equipped with swing-out, lift-off service doors for easy access for machine maintenance and serviceability.
With no grease zerks and easy access to all service points in one spot, maintenance is simplified and total cost of ownership reduced.
Integrated pipe lubricator makes it easier for operators to change out lubrication buckets for more efficient machine maintenance.
The AT40 All Terrain minimizes pipe-entry distance for increased support for the drill pipe as it enters the ground—this reduces wear on guide blocks and decreases the overall footprint on a job.
As with all Ditch Witch equipment, the AT40 All Terrain is backed by a worldwide network of dealerships you can count on for unmatched commitment to your success. From genuine Ditch Witch parts to factory-trained service and expert advice, your Ditch Witch dealership is your trusted partner.
BATTERY (2 used)
SAE reserve capacity rating
195 min
SAE cold crank rating @ 0°F (-18°C)
950 amps
POWER PIPE® HD
U.S.
METRIC
Length of drill pipe, nominal
180 in
4.57 m
Diameter of drill pipe, tool joint end
3.13 in
80 mm
Diameter of drill pipe
2.81 in
71 mm
Bend radius, min
146 ft
45 m
Weight of drill pipe, lined
150 lb
68 kg
Weight of drill pipe & large box (40 pipe)
7,140 lb
3240 kg
Weight of drill pipe & small box (20 pipe)
3,797 lb
1720 kg