794 AC Mining Truck

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Overview

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.

Engine

Units:
Engine Model Cat® C175-16 Cat® C175-16 Less
Gross Power - SAE J1995 3500.0 hp 2610.0 kW Less
Bore 6.9 in 175.0 mm Less
Stroke 8.7 in 220.0 mm Less
Displacement 5187.0 in3 85.0 L Less
Standard Gross Power – SAE J1995* 3500.0 hp 2610.0 kW Less
Note * Contact factory for low HP, lower emissions tier configurations and high altitude configurations. * Contact factory for low HP, lower emissions tier configurations and high altitude configurations. Less
Note Power Ratings apply at 1,800 rpm when tested under the specified conditions for the specified standard. Power Ratings apply at 1,800 rpm when tested under the specified conditions for the specified standard. Less
Note 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). 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). Less
Note No engine derating required up to 1829 m (6,000 ft) altitude. No engine derating required up to 1829 m (6,000 ft) altitude. Less
Emissions Equivalent to U.S. EPA Tier 2 emission standards. Equivalent to U.S. EPA Tier 2 emission standards. Less

Weights – approximate

Chassis Weight 417187.0 lb 189233.0 kg Less
Body Weight 62140.0 lb 28186.0 kg Less
Gross Machine Operating Weight 1150000.0 lb 521631.0 kg Less
Note Consult your tire manufacturer for maximum tire load. Consult your tire manufacturer for maximum tire load. Less
Note Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. Less
Note Body weight varies depending on how body is equipped. Body weight varies depending on how body is equipped. Less

Operating Specifications

Nominal Payload Capacity 320.0 tons 291.0 tonnes Less
Steer Angle 39.0 Degrees 39.0 Degrees Less
Top Speed – Loaded 37.0 mph 60.0 km/h Less
Gross Machine Operating Weight (GMW) 1150000.0 lb 521631.0 kg Less
Minimum Turning Radius 53.0 ft 16.2 m Less
Note Payload assumes no debris, no extra options or attachments. Payload assumes no debris, no extra options or attachments. Less
Note Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. Less

Final Drives

Total Reduction Ratio 35:1 35:1 Less

AC Drive System

Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration IGBT Inverter Technology, air cooled, pressurized cabinet with filtration Less
Cooling System Variable speed, hydraulically driven cooling system Variable speed, hydraulically driven cooling system Less
Generator/Alternator Brushless, engine mounted, dual bearing Brushless, engine mounted, dual bearing Less
Wheel Motor Cat AC induction, rear axle mounted Cat AC induction, rear axle mounted Less

Braking System

Dynamic Retarding Power – Continuous 5480.0 hp 4086.0 kW Less
Electric Retarding Radial Grid Design Radial Grid Design Less
Front Wet Disc Brake Surface Area 20378.0 in2 131473.0 cm2 Less
Rear Wet Disc Brake Surface Area 30750.0 in2 198388.0 cm2 Less
Standards ISO 3450:2011 ISO 3450:2011 Less

Weight Distributions – approximate

Front Axle – Loaded 33.0 % 33.0 % Less
Rear Axle – Loaded 67.0 % 67.0 % Less
Front Axle – Empty 49.0 % 49.0 % Less
Rear Axle – Empty 51.0 % 51.0 % Less

Service Refill Capacities

Cooling System 211.0 gal 799.0 L Less
Crankcase 82.0 gal 310.0 L Less
Final Drives, each 67.0 gal 254.0 L Less
Fuel Tank 1300.0 gal 4922.0 L Less
Hydraulic System (includes tank) 385.0 gal 1458.0 L Less
Hydraulic Tank 296.0 gal 1121.0 L Less

Tires

Note Production capabilities of the 794 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production. Production capabilities of the 794 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production. Less
Note Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection. Less
Standard Tires 53/80 R63. 53/80 R63. Less

Dimensions (Approximate)

Height to Top of ROPS 22.25 ft 6779.0 mm Less
Overall Length 50.75 ft 15463.5 mm Less
Wheelbase 21.83 ft 6644.5 mm Less
Rear Axle to Tail 15.5 ft 4716.0 mm Less
Ground Clearance 2.67 ft 906.0 mm Less
Dump Clearance 3.0 ft 1555.0 mm Less
Loading Height – Empty 22.92 ft 6995.0 mm Less
Overall Height – Body Raised 48.42 ft 14747.0 mm Less
Centerline Front Tire Width 23.0 ft 7024.0 mm Less
Front Axle Clearance 3.17 ft 969.0 mm Less
Overall Canopy Width 32.0 ft 9763.0 mm Less
Outside Body Width 29.75 ft 9062.0 mm Less
Inside Body Width 28.08 ft 8560.0 mm Less
Front Canopy Height 26.33 ft 8024.0 mm Less
Rear Axle Clearance 3.08 ft 934.0 mm Less
Centerline Rear Dual Tire Width 18.75 ft 5727.0 mm Less
Overall Tire Width 28.67 ft 8738.0 mm Less
Note Dimensions based on 1936 m3 (253 yd3) HE Body. Dimensions based on 1936 m3 (253 yd3) HE Body. Less

ROPS

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

Sound

Sound Standard 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. 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. Less
Sound Standard 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. 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. Less

Steering

Note Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). Less
Steering Standards ISO 5010:2007 ISO 5010:2007 Less

Capacity – HE Body – 100% fill factor

Dump Body Plate Thickness Varies Depending on Body Selection – Canopy Plate 0.2 in 5.0 mm Less
Dump Body Plate Thickness Varies Depending on Body Selection – Floor Plate 0.63 in 16.0 mm Less
Dump Body Plate Thickness Varies Depending on Body Selection – Front Plate 0.35 in 9.0 mm Less
Dump Body Plate Thickness Varies Depending on Body Selection – Side Plate 0.31 in 8.0 mm Less
Heaped (SAE 2:1) 180-222 m3 (236-290 yd3) 180-222 m3 (236-290 yd3) Less
Struck 108-133 m3 (142-175 yd3) 108-133 m3 (142-175 yd3) Less
Note Contact your local Cat dealer for body recommendations. Contact your local Cat dealer for body recommendations. Less

Power Train – Cat AC Electric Drive

Delivers you more power to the ground for greater productivity.


Power Train – Engine

Delivers power, reliability, and efficiency for your most demanding mining applications.


Engine/Power Train Integration

Delivers low operating costs through electronically combined power train components.


Cat Braking System

Delivers operator’s confidence, to maximize your productivity.


Structures

Cat structures are known for being the best in the industry for durability and long life.


Truck Body Systems

Delivers a true 291 tonnes (320 tons) and provides rugged performance and reliability.


Monitoring System

Keeping your production at peak levels.


Operator’s Station

Ergonomically designed for all-day comfort, control and productivity.


Customer Support

The most experienced dealer network in the world.


Serviceability

Delivers easy service for more uptime and productivity.


Safety

Designed with safety as the first priority.


Sustainability

Reduced maintenance time results in more productivity.


794 ACStandard Equipment

POWER TRAIN
  • C175-16 Tier 2 equivalent emission standards
  • 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
    • 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)
  • 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)

794 ACOptional Equipment

Contact factory for low HP, lower emissions tier configurations and high altitude configurations

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

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