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.

Operating Specifications

Units:
Nominal Payload Capacity 320.0 ton (US) 291.0 t Less
Steer Angle 39.0 ° 39.0 ° Less
Gross Machine Operating Weight (GMW) 1150000.0 lb 521631.0 kg Less
Minimum Turning Radius 53.0 ft 16.2 m Less
Note (1) Payload assumes no debris, no extra options or attachments. Payload assumes no debris, no extra options or attachments. Less
Note (2) 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
Top Speed - Loaded 37.0 mile/h 60.0 km/h Less

Engine

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
Note (1) 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 (2) 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 (3) Optional 2,750 hp and 3,100 hp ratings. Optional emission ratings. Contact factory for available offerings. Optional 2,750 hp and 3,100 hp ratings. Optional emission ratings. Contact factory for available offerings. Less
Note (4) High altitude configurations available for altitudes up to 4267 m (14,000 ft) without derate. High altitude configurations available for altitudes up to 4267 m (14,000 ft) without derate. Less
Standard Gross Power - SAE J1995 3500.0 HP 2610.0 kW Less

Final Drives

Total Reduction Ratio 35 to 1 35 to 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

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
Note Contact your local Cat dealer for body recommendations. Contact your local Cat dealer for body recommendations. Less
Struck 108-133 m³ (142-175 yd³) 108-133 m³ (142-175 yd³) Less

Dimensions (Approximate)

Canopy Width (without optional rock deflectors) 29.75 ft 9068.0 mm Less
Centerline Front Tire Width 23.0 ft 7024.0 mm Less
Centerline of Rear Dual Tire Width 18.75 ft 5727.0 mm Less
Dump Clearance 3.0 ft 1555.0 mm Less
Front Axle Clearance 3.17 ft 969.0 mm Less
Front Canopy Height 26.33 ft 8024.0 mm Less
Ground Clearance 2.67 ft 906.0 mm Less
Height - Top of ROPS 22.25 ft 6779.0 mm Less
Inside Body Width 28.08 ft 8560.0 mm Less
Loading Height - Empty 22.92 ft 6995.0 mm Less
Note Dimensions based on 193.6 m³ (253 yd³) HE Body. Dimensions based on 193.6 m³ (253 yd³) HE Body. Less
Outside Body Width 29.75 ft 9062.0 mm Less
Overall Height - Body Raised 48.42 ft 14747.0 mm Less
Overall Length 50.75 ft 15463.5 mm Less
Overall Tire Width 28.67 ft 8738.0 mm Less
Rear Axle - Clearance 3.08 ft 934.0 mm Less
Rear Axle - Tail 15.5 ft 4716.0 mm Less
Wheel Base 21.83 ft 6644.5 mm Less

ROPS

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

Service Refill Capacities

Cooling System 211.0 gal (US) 799.0 l Less
Crankcase 82.0 gal (US) 310.0 l Less
Final Drive - Each 67.0 gal (US) 254.0 l Less
Fuel Tank 1300.0 gal (US) 4922.0 l Less
Hydraulic System - Including Tank 385.0 gal (US) 1458.0 l Less
Hydraulic Tank 296.0 gal (US) 1121.0 l Less

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. 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 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. 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

Tires

Note (1) 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 (2) 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

Weight Distributions - Approximate

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

Weights - Approximate

Body Weight 62140.0 lb 28186.0 kg Less
Chassis Weight 417187.0 lb 189233.0 kg Less
Gross Machine Operating Weight 1150000.0 lb 521631.0 kg Less
Note (1) Consult your tire manufacturer for maximum tire load. Consult your tire manufacturer for maximum tire load. Less
Note (2) 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 (3) Body weight varies depending on how body is equipped. Body weight varies depending on how body is equipped. 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 AC 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
  • Alarm, backup

ELECTRICAL
  • 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
  • Air conditioner

OPERATOR ENVIRONMENT
  • 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
  • Seat, trainer, air suspension
  • Seatbelt, trainer, two point
  • Tinted glass
  • Wiper, windshield, intermittent control and washer
  • Extended life coolant to –35° C (–30° F)
  • Traction control system
  • Auxiliary “buddy” dumping quick connect
  • Auxiliary steering quick connect (towing)
  • Rotating component guards

FLUIDS
  • Fast fill fuel system (LH and RH side)

OTHER STANDARD 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
  • 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 AC Optional Equipment

OPTIONAL EQUIPMENT
  • 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