72 - 1200 NG Performance Specification
Exceptional Force * Reliable Results

Power Train
Engine	Caterpillar C7 ACERT, Tier III, Diesel, Water Cooled w/Electric Start
Rating	250 HP (186 kW)
Maximum Engine Speed	2100 RPM
Engine Torque	625 ft-lbs 2100 RPM
Fuel Capacity	58 U.S. Gallons (219 L)
Hydraulic Capacity	48 U.S. Gallons (181 L)
Battery	Two, Deka 634MF, 12 V,  690 CCA
Transmission
Type	Eaton FS-6406A
Transmission Ratios	Gear Ratio 1St Gear 9.01:1 2ND Gear 5.27:1 3RD Gear 3.22:1 4th Gear 2.04:1 5TH Gear 1.36:1 6TH Gear 1.00:1 Reverse 8.63:1
Clutch	Dual Plate, Spring Applied w/ 13" (330 mm) Diameter Twin Disk/Hydraulically Assisted Clutch Actuator
Gearbox
Ratio	35.63:1
Torque & Speed
Torque Requirements	Gear Ratio Max. Speed 1st 200,641 ft lbs (271,868 Nm) 7 RPM 2nd 117,365 ft-lbs (159,017 Nm) 11 RPM 3rd 71,705 ft-lbs (97,160 Nm) 18 RPM 4th 45,528 ft-lbs (61,554 Nm) 29 RPM 5th 30,286 ft-lbs (41,037 Nm) 43 RPM 6TH 22,263 ft-lbs (30,166 Nm) 58 RPM Reverse 192,179 ft-lbs (260,402 Nm) 7 RPM *These are net figures. A deduction has already been taken into consideration for hydraulic and mechanical loss
Hydraulic System
Maximum Thrust	1,200,000 lbs (5,338 Nm)
Hydraulic Pump	Axial Piston Pump w/Load Sensor
Gear Pump	Piston Pump, 39 CIR, LH, SAE
Maximum Pump Pressure	4,715 psi (325 bar)
Maximum Pump Output	35 U.S. Gallons ( 132 L)/minute
Hydraulic Motors	Two, 60 CIR, LSHT
Hydraulic Push Bar Cylinder	One, 2” Bore x 2” Stroke
Hydraulic Clutch Cylinder	One, 1 ½” Bore x 4” Stroke
Hydraulic Thrust Cylinder	Four, 9” Bore x 35” Stroke
Hydraulic Suction Strainer Filter	Suction Strainer w/ 100 Mesh Screen
Hydraulic Return Filter	High Pressure Return Filter to 6 Micron ABS w/Replaceable Element
Misc Performance Data
Working  Range	24 – 84 inch (610 – 2282mm) Casing Diameter
Hex Drive	5 inch (125mm) Hex
Quik Split©	Quik Tran©
The Quik Split© frame design, allows the machine to be separated into sections to accommodate lighter and fasters lifts into and out of the bore pit, and aids the operator in being able to facilitate better and safer machine positioning	Quik Tran© is the fast return system, made available exclusively from American Augers, as it provides up to 10,000 lbs of push/pull at high speed, and there will be no dogging or winching during retract, as the Quik Tran system engages directly to the machine track. Quik Trans benefit will be easier machine operation in challenging work climates or conditions.
Spoil Door
With a Safety-First commitment, all American Augers horizontal earth boring machines are equipped with a gravity activated-manual spoil door, which deflects thrown debris from the spoil chamber.
Dimensions
Length	13’ 9” (4.23 m)
Width	8’ 2” (2.48 m)
Height	7’ 5” (2.28 m)
Master Track Length	15’ (4.5 m) w/1 1/2” (38 mm) back plate
Extension Track Length	10’ (3 m)
Weight
Base Unit (Split Weight)	9,000 lbs (4,082 kg)
Power Pack (Split Weight)	12,000lbs (5,443 kg)
Master Pusher	2,200 lbs (998 kg)
Master Track	7,700 lbs (3,493 kg)
Lifting Sling	700 lbs (318 kg)
Total Weight	31,600 lbs (14,560 kg)
Extension Track	5,739 lbs (1,814 kg) each
Master Saddle	360 lbs (163 kg)