794 AC Mining Truck

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794 AC – 2016, Tier 2 equivalent

What will it take to boost your bottom line? The Cat® 794 AC electric drive truck delivers a full 320-ton payload, increased speed on grade, 40% 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.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 297tonnes (327tons) 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.
  • Standard Equipment
  • Optional Equipment
  • Specs

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

Specs

Overview

Long Name:
794 AC Mining Truck
Name:
794 AC
Brand:
Caterpillar
Status:
Current

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 / 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:
35:1

AC Drive System

Total Reduction Ratio:
35:1
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 % / 49 %
Rear Axle - Empty:
51 % / 51 %
Front Axle - Loaded:
33 % / 33 %
Rear Axle - Loaded:
67 % / 67 %

Body Hoists

Pump Flow - High Idle (HAA at 1,800 rpm):
221 gal/min / 840 l/min

Capacity - HE Body - 100% fill factor

Struck:
108-133 m³ (142-175 yd³)

Body Hoists

Pump Flow - High Idle (LAA at 1,960 rpm):
240 gal/min / 910 l/min

Capacity - HE Body - 100% fill factor

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

Body Hoists

Relief Valve Setting - Raise:
3029 psi / 20884 kPa
Body Raise Time - High Idle:
24 s / 24 s

Capacity - HE Body - 100% fill factor

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

Body Hoists

High Idle Body Lower Time - Float:
20 s / 20 s

Capacity - HE Body - 100% fill factor

Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate:
0.2 in / 5 mm

Body Hoists

Total Cycle Time:
44 s / 44 s

Capacity - HE Body - 100% fill factor

Note:
Contact your local Cat dealer for body recommendations.

Body Hoists

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.

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.

ROPS

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

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 ° / 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