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794 AC Mining Trucks

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.

794 AC

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Designed and manufactured by Caterpillar, the 794 AC Electric Drive Truck is single sourced from one manufacturer and delivers a true 320 ton capacity.

Nominal Rated Payload
327 ton (US)
Rated Gross Machine Weight
1150000 lb
Gross Power - SAE J1995
3500 hp
Standard Gross Power - SAE J1995
3500 hp
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Gross Power - SAE J1995 2610 kW
Standard Gross Power - SAE J1995 2610 kW
Engine Model Cat® C175-16
Optional Gross Power - SAE J1995 2312 kW
Optional Gross Power - SAE J1995 (Option 2) 2051 kW
Rated Speed 1800 r/min
Net Power - SAE J1349 2539 kW
Emissions Rating Fuel Optimized
Bore 175 mm
Stroke 220 mm
Displacement 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)

Features

SAFETY

  • Greater visibility thanks to wide field of view from the cab.
  • Safer access and egress with standard 600 mm) (24 in) wide ladders, flat deck, toe kicks, and optional power access stair attachment.
  • Confidence-building features such as anti-rollback, traction controls, park brake warning when exiting the cab and automatic retarder.
  • Best braking in its class, with four-corner wet disc brakes with blended mechanical service brakes and dynamics, plus Automatic Retarding Control for easier and more efficient retarding.
  • Ground-level system lockout, engine lockout and propulsion lockout (in ECM cabinet), VIMS monitoring, and stored energy dissipation at shutdown.

PRODUCTIVITY

  • Proven 90% physical availability.
  • Significant speed advantage to move more over the course of a shift — or move the same amount of material with fewer trucks.
  • Lower empty weight and higher-rated GMW for a higher-rated field payload vs. competitive trucks.
  • Ease of operation and reduced costs thanks to integrated Cat engine, AC drive system, hydraulics and controls.
  • Excellent slow speed control within the service areas and superior throttle response on acceleration to move out of the loading or dump areas.

OPERATOR COMFORT

  • Ergonomic cab layout, excellent all-around visibility, and controls, levers and switches that are positioned for ease of use.
  • Automatic climate control and reduced vibration and sound.
  • Next generation seat with height adjuster, adjustable shoulder stock to keep the seatbelt from rubbing, and seat back, side and lumbar bolsters to increase stability.

VERSATILITY

  • Proven in the field and working around the world — on four continents and in nine countries.
  • Ideal for a variety of applications and ores: soft rock, hard rock, deep pit, and flat haul; low altitude, high altitude, high ambient, and cold weather.
  • Optimized horsepower performance that makes it possible for the 794 to run in all areas of the mine — from deep pits to downhill hauls; from smooth, flat roads to areas of high rolling resistance — with the same engine.
  • Higher horsepower available to boost productivity in deeper pits, and an easy adjustment to a lower horsepower that allows the 794 to better align with mixed fleets and keep fuel costs lower.

SERVICEABILITY

  • Open engine access and platforms for service of engine, generator and inverter, plus ground-level filters and service.
  • Component layout with minimized hydraulics, all hydraulic lines on one side, and electric wiring on the other side.
  • Separate traction motors, brakes and final drives.
  • Modular component design for easy removal and installation.
  • AC grid blower motor designed for longer life and less maintenance, plus pressurized and filtered AC drive inverter that requires less maintenance.

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
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
OPERATOR ENVIRONMENT
  • Air conditioner
  • 12V DC power supply (1)
  • Cup holder (2)
  • Diagnostic connection port
  • Dome courtesy light
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)

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