794 AC

Nominal Rated Payload
327 ton (US) / 297 t
Rated Gross Machine Weight
1150000 lb / 521631 kg
Gross Power - SAE J1995
3500 HP / 2610 kW

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.

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794 AC Tech Specs 794 AC Product Brochure Brochure - Electric Drive Trucks Updates 794 AC Poster
Engine
Gross Power - SAE J1995 3500 HP / 2610 kW
Standard Gross Power - SAE J1995 3500 HP / 2610 kW
Engine Model Cat® C175-16
Optional Gross Power - SAE J1995 3100 HP / 2312 kW
Optional Gross Power - SAE J1995 (Option 2) 2750 HP / 2051 kW
Rated Speed 1800 r/min
Net Power - SAE J1349 3405 HP / 2539 kW
Emissions Rating Fuel Optimized
Bore 6.9 in / 175 mm
Stroke 8.7 in / 220 mm
Displacement 5187 in³ / 85 l
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)
Weights - Approximate
Nominal Rated Payload 327 ton (US) / 297 t
Rated Gross Machine Weight 1150000 lb / 521631 kg
Chassis Weight 426237 lb / 193338 kg
Body Weight 64346 lb / 29187 kg
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)
Final Drives
Total Reduction Ratio 35:01:00
AC Drive System
Total Reduction Ratio 35:01:00
Top Speed - Loaded 37 mile/h / 60 km/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
Tires
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 20378 in² / 131473 cm²
Rear - Wet Disc Brake Surface Area 30750 in² / 198388 cm²
Standards ISO 3450:2011
Parking Brake Four-corner, Multi-disc, Spring applied, Hydraulically Released
Load Brake Rear service brakes
Dynamic Retarding Power - Continuous 5480 HP / 4086 kW
Weight Distributions - Approximate
Front Axle - Empty 49 %
Rear Axle - Empty 51 %
Front Axle - Loaded 33 %
Rear Axle - Loaded 67 %
Body Hoists
Pump Flow - High Idle (HAA at 1,800 rpm) 221 gal/min / 840 l/min
Pump Flow - High Idle (LAA at 1,960 rpm) 240 gal/min / 910 l/min
Relief Valve Setting - Raise 3029 psi / 20884 kPa
Body Raise Time - High Idle 24 s
High Idle Body Lower Time - Float 20 s
Total Cycle Time 44 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.
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 0.63 in / 16 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate 0.35 in / 9 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate 0.31 in / 8 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate 0.2 in / 5 mm
Note Contact your local Cat dealer for body recommendations.
Service Refill Capacities
Fuel Tank 1300 gal (US) / 4922 l
Cooling System 211 gal (US) / 799 l
Crankcase 82 gal (US) / 310 l
Final Drive - Each 67 gal (US) / 254 l
Hydraulic Tank 296 gal (US) / 1121 l
Hydraulic System - Including Tank 385 gal (US) / 1458 l
Diesel Exhaust Fluid Tank 100 gal (US) / 378 l
Note (1) DEF Tank only available for EPA Tier 4 / EU Stage V engine option.
Cab
ROPS Standards (1) Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer.
FOPS Standards Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer.
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
Steering Standards ISO 5010:2007
Note Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
Steer Angle 39 °
Dimensions (Approximate)
Height - Top of ROPS 22.25 ft / 6779 mm
Overall Length 50.75 ft / 15463.5 mm
Wheel Base 21.83 ft / 6644.5 mm
Rear Axle - Tail 15.5 ft / 4716 mm
Ground Clearance 2.67 ft / 906 mm
Dump Clearance 3 ft / 1555 mm
Loading Height - Empty 22.92 ft / 6995 mm
Overall Height - Body Raised 48.42 ft / 14747 mm
Centerline Front Tire Width 23 ft / 7024 mm
Front Axle Clearance 3.17 ft / 969 mm
Canopy Width (without optional rock deflectors) 29.75 ft / 9068 mm
Outside Body Width 29.75 ft / 9062 mm
Inside Body Width 28.08 ft / 8560 mm
Front Canopy Height 26.33 ft / 8024 mm
Rear Axle - Clearance 3.08 ft / 934 mm
Centerline of Rear Dual Tire Width 18.75 ft / 5727 mm
Overall Tire Width 28.67 ft / 8738 mm
Overall Canopy Width 31.5 ft / 9611 mm

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
    • S•O•S? 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

Detect

On the surface, operators in the cabs of large mining equipment often cannot see if another machine or vehicle is too close for safe operation. Detect helps alleviate this potential safety hazard and can also be configured to provide valuable information about site conditions and other assets working in the area. Underground, continuous equipment movement on a longwall face can pose risks to those in the working area.

Model
Cat Detect — Object Detection

Command

Combining the Fleet, Terrain, Detect and Health capabilities of Cat® MineStar™ System, Command enables you to implement remote control, semi-autonomous or fully autonomous mining equipment systems - offering unprecedented improvements in operator safety, equipment availability and site productivity.

Model Power Weight Humidity
Cat Command for Hauling 2A @ 24V 1.76 lb / 0.8 kg 100%

Health

Health records information on critical machine parameters fleet-wide. Data is available in real-time or historical database. Linked with on-board monitoring systems, Health provides wireless or wired transfer of this critical data to the service center for processing and review. Health may also be integrated into a production database for expanded analysis.

Model
Cat Health

Fleet

Fleet is a fully integrated mine monitoring and management system that uses technology to improve productivity and maximize commodity value. Real-time interaction with mobile field equipment allows mine management to improve machine utilization, track material movement and monitor daily production against plan. Fleet is fully scalable to accommodate a growing fleet of machines or the need for additional capability and functionality.

Model
Cat Fleet for Surface
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