794 AC Mining Truck

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.

Request a quote
Body Weight 64346lb
Chassis Weight 426237lb
Nominal Rated Payload 327ton (US)
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)
Rated Gross Machine Weight 1150000lb
Bore 6.9in
Displacement 5187in³
Emissions Rating Fuel Optimized
Engine Model Cat® C175-16
Gross Power - SAE J1995 3500HP
Net Power - SAE J1349 3405HP
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)
Optional Gross Power - SAE J1995 3100HP
Optional Gross Power - SAE J1995 (Option 2) 2750HP
Rated Speed 1800r/min
Standard Gross Power - SAE J1995 3500HP
Stroke 8.7in
Total Reduction Ratio 35:1
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.
Rims 36" x 63"
Standard Tires 53/80 R63
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Cooling System Variable speed, hydraulically driven cooling system
Generator/Alternator Brushless, engine mounted, dual bearing
Top Speed - Loaded 37mile/h
Total Reduction Ratio 35:1
Wheel Motor High-torque AC induction, rear axle mounted
Dynamic Retarding Power - Continuous 5480HP
Front Wet Disc Brake Surface Area 20378in²
Load Brake Rear service brakes
Parking Brake Four-corner, Multi-disc, Spring applied, Hydraulically Released
Rear - Wet Disc Brake Surface Area 30750in²
Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Standards ISO 3450:2011
Front Axle - Empty 49%
Front Axle - Loaded 33%
Rear Axle - Empty 51%
Rear Axle - Loaded 67%
Body Raise Time - High Idle 24s
High Idle Body Lower Time - Float 20s
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.
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
Total Cycle Time 44s
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate 0.2in
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
Heaped (SAE 2:1) 180-222 m³ (236-290 yd³)
Note Contact your local Cat dealer for body recommendations.
Struck 108-133 m³ (142-175 yd³)
Cooling System 211gal (US)
Crankcase 82gal (US)
Diesel Exhaust Fluid Tank 100gal (US)
Final Drive - Each 67gal (US)
Fuel Tank 1300gal (US)
Hydraulic System - Including Tank 385gal (US)
Hydraulic Tank 296gal (US)
Note (1) DEF Tank only available for EPA Tier 4 / EU Stage V engine option.
Canopy Width (without optional rock deflectors) 29.75ft
Centerline Front Tire Width 23ft
Centerline of Rear Dual Tire Width 18.75ft
Dump Clearance 3ft
Front Axle Clearance 3.17ft
Front Canopy Height 26.33ft
Ground Clearance 2.67ft
Height - Top of ROPS 22.25ft
Inside Body Width 28.08ft
Loading Height - Empty 22.92ft
Outside Body Width 29.75ft
Overall Canopy Width 31.5ft
Overall Height - Body Raised 48.42ft
Overall Length 50.75ft
Overall Tire Width 28.67ft
Rear Axle - Clearance 3.08ft
Rear Axle - Tail 15.5ft
Wheel Base 21.83ft
FOPS Standards FOPS (Falling Object Protective Structure) meets ISO 3449:1992.
ROPS Standards ROPS (Rollover Protective Structure) meets ISO 3471:1994.
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.
Note Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
Steer Angle 39°
Steering Standards ISO 5010:2007

Standard Equipment:

  • Power Train
    • C175-16 Diesel Engine
      – Turbocharging (4)/aftercooled
      – Air to air after cooler (ATAAC)
      – Air cleaner (4) with precleaner
      – Elevated low idle control
      – Multi-point oil pressure sensing
      – Pre-lubrication/engine
    • Braking system:
      – Brake release towing
      – Oil-cooled, multi-disc (front and rear) (service, retarding, parking, secondary)
      – Automatic Retarder Control
      – Electric dynamic retarding with blended low speed
      – Extended life brake disc material
    • Cat AC drive train:
      – IGBT controlled AC induction motors
      – AC generator
      – AC cooled radial grid
    • Body-up reverse neutralizer
    • Programmable top speed
    • Rear axle continuous lube/filtration
    • Reverse shift inhibitor
    • Directional shift management
    • Neutral coast inhibitor
    • Body-up shift inhibitor
    • Neutral start inhibitor
  • Electrical
    • Alarm, backup
    • Brushless alternator 150 amp charging
    • Batteries – 12V (8) 90 amp hour
    • Converter, 12V electrical
    • Electrical system, 24V, 10, 15, 20 amp fuses and breakers
    • Battery charge receptacle
    • Lighting, signals/service:
      – Halogen lighting package
      – Backup and hazard lighting
      – Directional signals (front and rear LED)
      – Front stair access/service deck
      – Stop/tail lights (LED)
      – Engine compartment
      – Inverter energy LED warning lights
  • Operator Environment
    • Air conditioner
    • 12V DC power supply (1)
    • Cup holder (2)
    • Diagnostic connection port
    • Dome courtesy light
    • Entertainment radio ready:
      – 20 amp switched/10 amp memory converter
      – Speakers, and wiring harnesses
    • Gauges/indicators
    • Gauge panel:
      – Hydraulic oil temperature
      – Engine coolant temperature
      – Fuel level
      – DEF level (Tier 4 / Stage V only)
      – Electric engine control fault indicator
      – Electric hour meter
      – Speedometer
      – Tachometer
      – VIMS message center advisor
    • Heater/defroster
    • Storage space behind seat
    • ROPS cab, insulated/sound suppressed
    • Seat, operator, air suspension
    • Seatbelt, operator, three points
    • Seat, trainer, air suspension
    • Seatbelt, trainer, two point
    • Steering wheel, tilt, telescopic
    • Tinted glass
    • Window, electric powered, operator/passenger
    • Wiper, windshield, intermittent control and washer
    • Fixed access ladder
  • Fluids
    • Extended life coolant to –35° C (–30° F)
  • Other Standard Equipment
    • Traction control system
    • Auxiliary “buddy” dumping quick connect
    • Auxiliary steering quick connect (towing)
    • Rotating component guards
    • Fast fill fuel system (LH and RH side)
    • Fast fill DEF system (RH side) - Tier 4 / Stage V only
    • Fuel filter with water separator
    • Ground level battery lockout
    • Machine lockout
    • Engine start lockout
    • ECM cabinet lockout
    • Ground level engine shut-down
    • Rock ejectors (chain)
    • Tow hooks and pin (front)
    • Tow pin (rear) (empty truck only)
    • Mudflaps
    • Coolant level gauge (on radiator)
    • Automatic lubrication system
    • SOS℠ sample points (hydraulic, cooling, engine)

Optional Equipment:

  • Optional Equipment
    • 2050 kW (2,750 hp) and 2312 kW (3,100 hp) options available
    • HAA arrangements available
    • Throttle lock
    • Timer, engine shutdown
    • Body heat exhaust
    • Gel batteries (8)
    • High Intensity Discharge (HID) lighting package
    • LED lighting package
    • Fog lights
    • LED work lights
    • English or Metric gauges
    • Payload, digital display
    • Powered access ladder
    • Inverter platform
    • Fast fill fuel system (front and right)
    • Rims: Six (6) position and quick change
    • ANSI and ISO service instructions
    • Retarding indicator light
    • Cab pedestal for additional display
    • Radio/CD player
    • Front bumper center tow attachment
    • Brake wear indicator tool
    • Coolant –50° C (–58° F)
    • HE dump body rock box liner
    • HE dump body canopy rock deflectors
    • Heated mirrors (LH and RH)
    • Rear axle oil cooler
    • Standard accumulators and Australia/Canada certified accumulators
    • Hot start, for cold weather
    • Diesel fuel warmer
    • Wheel chocks (ANSI or ISO)
    • Portable fire extinguisher
    • Murphy gauge
    • High efficiency dump body
      – 1543 kg/m³ (2,600 lb/yd³) density body
      – 1721 kg/m³ (2,900 lb/yd³) density body
      – 1839 kg/m³ (3,100 lb/yd³) density body
      – 2076 kg/m³ (3,500 lb/yd³) density body
    • Canopy extension
    • Body rock box
    • Side profile lighting
    • Central service
    • Language monitors – English, Spanish, Italian, Portuguese, Dutch, Norwegian, Swedish, Estonian, Latin, Lithuanian, Slovakian, Slovenian, Greek, Romanian, Russian, Polish, Czech, Hungarian, Icelandic, Finnish, Danish, Thai, Indonesian, Vietnam, Malaysian, Chinese