New CAT Equipment

794 AC Mining Truck

Big Payloads. High Speeds. Superior Braking.

The Cat® 794 AC electric drive truck delivers a full 327-ton payload, increased speed on grade, 34% more retarding power than competitive trucks, superior braking performance and easier maintenance. The result? High availability, more confident operators and improved productivity. The 794 features a proven electric drive powertrain that is Caterpillar designed, integrated and supported. Validated on sites around the world, the 794 has proven its performance in a variety of applications, making it the ideal choice for a wide variety of applications. It hauls more every load, every cycle and every shift. And it delivers a better bottom line to the most important mine in the world: yours.

Get a Quote

Benefits

Up To 8% Better Payload

Higher-rated field payload vs. competitive trucks thanks to lower empty weight and higher-rated GMW

34% More Retarding Power

Superior retarding power and four-corner wet disc brakes boost operator confidence

Up To 8% Better Speed on Grade

Can travel at top speed of 60 kph / 37 mph and at maximum 28% grade loaded

Learn more about the 794 AC Mining Truck

Watch

  • AC Drive System
    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
    37 mile/h
    Total Reduction Ratio
    35:01:00
    Wheel Motor
    High-torque AC induction, rear axle mounted
  • Body Hoists
    Body Raise Time - High Idle
    24 s
    High Idle Body Lower Time - Float
    20 s
    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)
    221 gpm
    Pump Flow - High Idle (LAA at 1,960 rpm)
    240 gpm
    Relief Valve Setting - Raise
    3029 psi
    Total Cycle Time
    44 s
  • Braking System
    Dynamic Retarding Power - Continuous
    5480 hp
    Front Wet Disc Brake Surface Area
    20378 in²
    Load Brake
    Rear service brakes
    Parking Brake
    Four-corner, Multi-disc, Spring applied, Hydraulically Released
    Rear - Wet Disc Brake Surface Area
    30750 in²
    Service Brakes
    Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
    Standards
    ISO 3450:2011
  • Cab
    FOPS Standards
    Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer.
    ROPS Standards (1)
    Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer.
  • Capacity - HE Body - 100% fill factor
    Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate
    0.2 in
    Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate
    0.63 in
    Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate
    0.35 in
    Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate
    0.31 in
    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)
  • Dimensions (Approximate)
    Canopy Width (without optional rock deflectors)
    29.75 ft
    Centerline Front Tire Width
    23 ft
    Centerline of Rear Dual Tire Width
    18.75 ft
    Dump Clearance
    3 ft
    Front Axle Clearance
    3.17 ft
    Front Canopy Height
    26.33 ft
    Ground Clearance
    2.67 ft
    Height - Top of ROPS
    22.25 ft
    Inside Body Width
    28.08 ft
    Loading Height - Empty
    22.92 ft
    Outside Body Width
    29.75 ft
    Overall Canopy Width
    31.5 ft
    Overall Height - Body Raised
    48.42 ft
    Overall Length
    50.75 ft
    Overall Tire Width
    28.67 ft
    Rear Axle - Clearance
    3.08 ft
    Rear Axle - Tail
    15.5 ft
    Wheel Base
    21.83 ft
  • Engine
    Bore
    6.9 in
    Displacement
    5187 in³
    Emissions Rating
    Fuel Optimized
    Engine Model
    Cat® C175-16
    Gross Power - SAE J1995
    3500 hp
    Net Power - SAE J1349
    3405 hp
    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
    3100 hp
    Optional Gross Power - SAE J1995 (Option 2)
    2750 hp
    Rated Speed
    1800 r/min
    Standard Gross Power - SAE J1995
    3500 hp
    Stroke
    8.7 in
  • Final Drives
    Total Reduction Ratio
    35:01:00
  • Service Refill Capacities
    Cooling System
    211 gal (US)
    Crankcase
    82 gal (US)
    Diesel Exhaust Fluid Tank
    100 gal (US)
    Final Drive - Each
    67 gal (US)
    Fuel Tank
    1300 gal (US)
    Hydraulic System - Including Tank
    385 gal (US)
    Hydraulic Tank
    296 gal (US)
    Note (1)
    DEF Tank only available for EPA Tier 4 / EU Stage V engine option.
  • Sound
    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
    Note
    Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
    Steer Angle
    39 °
    Steering Standards
    ISO 5010:2019
  • Tires
    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
  • Weight Distributions - Approximate
    Front Axle - Empty
    49 %
    Front Axle - Loaded
    33 %
    Rear Axle - Empty
    51 %
    Rear Axle - Loaded
    67 %
  • Weights - Approximate
    Body Weight
    64346 lb
    Chassis Weight
    426237 lb
    Nominal Rated Payload
    327 ton (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
    1150000 lb
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
  • S•O•S℠ sample points (hydraulic, cooling, engine)
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

Download Resources

Site Map Legal Terms Privacy Policy Your Privacy Choices California Collection Notice Cookie Policy
Copyright © 2026 Fabick Cat | All Rights Reserved.

Fabick Cat & Fabick Cat Rentals are not affiliated with Fabick, Inc. Click here for more information.