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• Manufacturer:
  Ditch Witch
• Model:
  AT40 All Terrain
• Rig Size:
  30,001 - 50,000 lbs pullback

OPERATION
Maximum Spindle Speed: 225 rpm
Maximum Spindle Speed (AT inner spindle): 280 rpm
Maximum Spindle Torque: 5,500 ft-lb (7460 Nm)
Maximum Spindle Torque (AT inner spindle): 2,000 ft-lb (2710 Nm)
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)
Engine: Cummins QSB4.5
Fuel: Diesel
Cooling Medium: Liquid
Injection: Direct
Aspiration: Turbocharged and Charge Air Cooled
Number of Cylinders: 4
Displacement: 275 cu-in (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

POWER (TIER 3, LRC)
Engine: Cummins QSB4.5
Fuel: Diesel
Cooling Medium: Liquid
Injection: Direct
Aspiration: Turbocharged and Charge Air Cooled
Number of Cylinders: 4
Displacement: 275 cu-in (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

DIMENSIONS
Length, Mobiling: 295 in (7.50 m)
Length, Trailering: 290 in (7.37 m)
Width with Open Station: 89 in (2.26 m)
Width with Cab: 93 in (2.36 m)
Height with Cab: 114 in (2.90 m)
Operating Mass (no pipe): 21,600 lb (9800 kg)
Entry Angle: 20-29 degrees
Angle of Approach: 17 degrees
Angle of Departure: 17 degrees

WEIGHT
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)

DRILLING FLUID SYSTEM
Maximum Pressure: 1,000 psi (69 bar)
Maximum Flow: 70 gpm (265 l/min)

FLUID CAPACITIES
Hydraulic Reservoir: 17 gal (64 L)
Fuel Tank: 56 gal (212 L)

POWER PIPE HD
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)
Minimum Bend Radius: 146 ft (45 m)
Weight of Drill Pipe, lined: 150 lb (68 kg)
Weight of Drill Pipe and Large Box (40 pipe): 7,140 lb (3240 kg)
Weight of Drill Pipe and Small Box (20 pipe): 3,797 lb (1720 kg)

ALL TERRAIN PIPE
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)
Minimum Bend Radius: 170 ft (52 m)
Weight of Drill Pipe: 231 lb (105 kg)
Weight of Drill Pipe and Large Box (24 pipe): 6,350 lb (2880 kg)
Weight of Drill Pipe and Small Box (12 pipe): 3,450 lb (1560 kg)

HIWS1 PIPE
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)
Minimum Bend Radius: 145 ft (44 m)
Weight of Drill Pipe: 165 lb (75 kg)
Weight of Drill Pipe and Large Box (35 pipe): 6,915 lb (3140 kg)
Weight of Drill Pipe and Small Box (15 pipe): 3,287 lb (1490 kg)

BATTERY (2 USED)
SAE Reserve Capacity Rating: 195 min
SAE Cold Crank Rating @ 0°F (-18°C): 950 amps