Nominal Payload Capacity320 Sh Ton (291 t)
Engine ModelCat® C175-16
Gross Power - SAE J19953500 mm H2O (2610 kg/mm)
Designed and manufactured by Caterpillar, the 794 AC electric drive truck is single sourced from one manufacturer and supported by the best dealer network. The 794 AC is designed to:
  • Deliver a true 291 tonnes (320 tons) capacity
  • Deliver reliability and uptime
  • Deliver easy serviceability
  • Deliver low owning and operating cost
  • Deliver operator confidence with four corner wet disc blended service brakes and traction control
The 794 AC is built to deliver to your bottom line.


-Nominal Payload Capacity320 Sh Ton (291 t)
-Engine ModelCat® C175-16
-Gross Power - SAE J19953500 mm H2O (2610 kg/mm)
-Bore6.9 in (175 mm)
-Stroke8.7 in (220 mm)
-Displacement5187 in³ (85 l)
-Steer Angle39 ° (39 °)
-Total Reduction Ratio35:1
-Heaped (SAE 2:1)180-222 m3 (236-290 yd3)
-Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate0.31 in (8 mm)
-Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate0.35 in (9 mm)
-Struck108-133 m3 (142-175 yd3)
-NoteContact your local Cat dealer for body recommendations.
-Front Canopy Height26.33 ft (8024 mm)
-Centerline of Rear Dual Tire Width18.75 ft (5727 mm)
-Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate0.63 in (16 mm)
-FOPS StandardsFOPS (Falling Object Protective Structure) meets ISO 3449:1992.
-Rear Axle - Tail15.5 ft (4716 mm)
-ROPS StandardsROPS (Rollover Protective Structure) meets ISO 3471:1994.
-Inside Body Width28.08 ft (8560 mm)
-Sound Standards (1)The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed.
-Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate0.2 in (5 mm)
-Sound Standards (2)Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
-Wheel Base21.83 ft (6644.5 mm)
-Rear Axle - Clearance3.08 ft (934 mm)
-Note (1)Production capabilities of the 794 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production.
-NoteGross Machine Operating Weight is 521 631 kg (1,150,000 lb).
-Note (2)Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
-Note (2)Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection.
-Note (1)Consult your tire manufacturer for maximum tire load.
-Note (3)Body weight varies depending on how body is equipped.
-Note (2)Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires.
-Note (1)Payload assumes no debris, no extra options or attachments.
-Note (4)No engine derating required up to 1829 m (6,000 ft) altitude.
-Overall Tire Width28.67 ft (8738 mm)
-Overall Canopy Width32 ft (9763 mm)
-Outside Body Width29.75 ft (9062 mm)
-Overall Length50.75 ft (15463.5 mm)
-EmissionsEquivalent to U.S. EPA Tier 2 emission standards.
-Note (3)Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 99 kPa (29.61 Hg) dry barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
-Note (2)Power Ratings apply at 1,800 rpm when tested under the specified conditions for the specified standard.
-NoteDimensions based on 1936 m3 (253 yd3) HE Body.
-Front Axle Clearance3.17 ft (969 mm)
-Wheel MotorCat AC induction, rear axle mounted
-Generator/AlternatorBrushless, engine mounted, dual bearing
-Cooling SystemVariable speed, hydraulically driven cooling system
-Dynamic Retarding Power - Continuous5480 mm H2O (4086 kg/mm)
-Electric RetardingRadial Grid Design
-Rear - Wet Disc Brake Surface Area30750 in² (198388 cm²)
-Front Wet Disc Brake Surface Area20378 in² (131473 cm²)
-ControlsIGBT Inverter Technology, air cooled, pressurized cabinet with filtration
-Top Speed - Loaded37 mile/h (60 km/h)
-Body Weight62140 lb (28186 null)
-Standard Gross Power - SAE J1995*3500 mm H2O (2610 kg/mm)
-Note (1)* Contact factory for low HP, lower emissions tier configurations and high altitude configurations.
-Chassis Weight417187 lb (189233 null)
-Gross Machine Operating Weight1150000 lb (521631 null)
-Minimum Turning Radius53 ft (16.2 m)
-Gross Machine Operating Weight (GMW)1150000 lb (521631 null)
-StandardsISO 3450:2011
-Front Axle - Empty49 % (49 %)
-Centerline Front Tire Width23 ft (7024 mm)
-Hydraulic Tank296 gal (US) (1121 l)
-Dump Clearance3 ft (1555 mm)
-Ground Clearance2.67 ft (906 mm)
-Loading Height - Empty22.92 ft (6995 mm)
-Height - Top of ROPS22.25 ft (6779 mm)
-Overall Height - Body Raised48.42 ft (14747 mm)
-Hydraulic System - Including Tank385 gal (US) (1458 l)
-Rear Axle - Loaded67 % (67 %)
-Rear Axle - Empty51 % (51 %)
-Front Axle - Loaded33 % (33 %)
-Cooling System211 gal (US) (799 l)
-Crankcase82 gal (US) (310 l)
-Final Drive - Each67 gal (US) (254 l)
-Fuel Tank1300 gal (US) (4922 l)
-Steering StandardsISO 5010:2007
-Standard Tires53/80 R63.

Benefits and Features

Standard Equipment


Optional Equipment

  • High efficiency dump body

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