View Details

Tap to Call

794 AC Mining Truck

794 AC Mining Truck

At a Glance

Nominal Rated Payload
327 ton (US)
Rated Gross Machine Weight
1150000 lb
Gross Power - SAE J1995
3500 HP
Standard Gross Power - SAE J1995
3500 HP
Request a Demo Machine Comparison


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 297 tonnes (327 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.

Weights - Approximate

+ -
Nominal Rated Payload 327ton (US)
Rated Gross Machine Weight 1150000lb
Chassis Weight 426237lb
Body Weight 64346lb
Note (1) Consult your tire manufacturer for maximum tire load.
Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires
Note (3) Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
Note (4) Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg)


+ -
Gross Power - SAE J1995 3500HP
Standard Gross Power - SAE J1995 3500HP
Engine Model Cat® C175-16
Optional Gross Power - SAE J1995 3100HP
Optional Gross Power - SAE J1995 (Option 2) 2750HP
Rated Speed 1800r/min
Net Power - SAE J1349 3405HP
Emissions Rating Fuel Optimized
Bore 6.9in
Displacement 5187in³
Stroke 8.7in
Note (1) Contact factory for high altitude configuration.
Note (2) Tier 4 / EU Stage V option available for regions that require these emissions standards.
Note (3) Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW)

Final Drives

+ -
Total Reduction Ratio 35:01:00


+ -
Standard Tires 53/80 R63
Rims 36" x 63"
Note (1) Quick Change Rims optional.
Note (2) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Braking System

+ -
Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area 20378in²
Rear - Wet Disc Brake Surface Area 30750in²
Standards ISO 3450:2011
Parking Brake Four-corner, Multi-disc, Spring applied, Hydraulically Released
Load Brake Rear service brakes
Dynamic Retarding Power - Continuous 5480HP

AC Drive System

+ -
Total Reduction Ratio 35:01:00
Top Speed - Loaded 37mile/h
Generator/Alternator Brushless, engine mounted, dual bearing
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Wheel Motor High-torque AC induction, rear axle mounted
Cooling System Variable speed, hydraulically driven cooling system

Weight Distributions - Approximate

+ -
Front Axle - Empty 49%
Rear Axle - Empty 51%
Front Axle - Loaded 33%
Rear Axle - Loaded 67%

Service Refill Capacities

+ -
Fuel Tank 1300gal (US)
Cooling System 211gal (US)
Crankcase 82gal (US)
Final Drive - Each 67gal (US)
Hydraulic Tank 296gal (US)
Hydraulic System - Including Tank 385gal (US)
Diesel Exhaust Fluid Tank 100gal (US)
Note (1) DEF Tank only available for EPA Tier 4 / EU Stage V engine option.

Capacity - HE Body - 100% fill factor

+ -
Struck 108-133 m³ (142-175 yd³)
Heaped (SAE 2:1) 180-222 m³ (236-290 yd³)
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate 0.63in
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate 0.35in
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate 0.31in
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate 0.2in
Note Contact your local Cat dealer for body recommendations.

Body Hoists

+ -
Pump Flow - High Idle (HAA at 1,800 rpm) 221gal/min
Pump Flow - High Idle (LAA at 1,960 rpm) 240gal/min
Relief Valve Setting - Raise 3029psi
Body Raise Time - High Idle 24s
High Idle Body Lower Time - Float 20s
Total Cycle Time 44s
Note (1) Twin, two-stage hydraulic cylinders mounted inside main frame; double-acting cylinders in both stages.
Note (2) Power raise in both stages; power down in both stages possible.
Note (3) Automatic body-lower modulation reduces impact on frame.

Dimensions (Approximate)

+ -
Height - Top of ROPS 22.25ft
Overall Length 50.75ft
Wheel Base 21.83ft
Rear Axle - Tail 15.5ft
Ground Clearance 2.67ft
Dump Clearance 3ft
Loading Height - Empty 22.92ft
Overall Height - Body Raised 48.42ft
Centerline Front Tire Width 23ft
Front Axle Clearance 3.17ft
Canopy Width (without optional rock deflectors) 29.75ft
Outside Body Width 29.75ft
Inside Body Width 28.08ft
Front Canopy Height 26.33ft
Rear Axle - Clearance 3.08ft
Centerline of Rear Dual Tire Width 18.75ft
Overall Tire Width 28.67ft
Overall Canopy Width 31.5ft


+ -
ROPS Standards ROPS (Rollover Protective Structure) meets ISO 3471:1994.
FOPS Standards FOPS (Falling Object Protective Structure) meets ISO 3449:1992.


+ -
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.
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.


+ -
Steering Standards ISO 5010:2007
Note Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
Steer Angle 39°