Equipment Specifications Library

Basic Model Information

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

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Additional Info

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

This information is provided for informational purposes only. HDD Broker LLC cannot warrant the accuracy or completeness of this information. This information is subject to change by the manufacturer. Some specifications may vary by model year.

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