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794 AC Mining Truck
Nominal Rated Payload
327 ton (US)
297 t
Rated Gross Machine Weight
1,150,000 lb
521,631 kg
Gross Power - SAE J1995
3,500 HP
2,610 kW
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SPECIFICATIONS
The Cat® 794 AC electric drive truck delivers a full 327-ton (297-tonne) 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. 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.
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
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
3,029 psi
20,884 kPa
Body Raise Time - High Idle
24 s
24 s
High Idle Body Lower Time - Float
20 s
20 s
Total Cycle Time
44 s
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.
Braking System
Service Brakes
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area
20,378 in²
131,473 cm²
Rear - Wet Disc Brake Surface Area
30,750 in²
198,388 cm²
Standards
ISO 3450:2011
Parking Brake
Four-corner, Multi-disc, Spring applied, Hydraulically Released
Load Brake
Rear service brakes
Dynamic Retarding Power - Continuous
5,480 HP
4,086 kW
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.
Dimensions (Approximate)
Height - Top of ROPS
22.25 ft
6,779 mm
Overall Length
50.75 ft
15,463.5 mm
Wheel Base
21.83 ft
6,644.5 mm
Rear Axle - Tail
15.5 ft
4,716 mm
Ground Clearance
2.67 ft
906 mm
Dump Clearance
3 ft
1,555 mm
Loading Height - Empty
22.92 ft
6,995 mm
Overall Height - Body Raised
48.42 ft
14,747 mm
Centerline Front Tire Width
23 ft
7,024 mm
Front Axle Clearance
3.17 ft
969 mm
Canopy Width (without optional rock deflectors)
29.75 ft
9,068 mm
Outside Body Width
29.75 ft
9,062 mm
Inside Body Width
28.08 ft
8,560 mm
Front Canopy Height
26.33 ft
8,024 mm
Rear Axle - Clearance
3.08 ft
934 mm
Centerline of Rear Dual Tire Width
18.75 ft
5,727 mm
Overall Tire Width
28.67 ft
8,738 mm
Overall Canopy Width
31.5 ft
9,611 mm
Engine
Gross Power - SAE J1995
3,500 HP
2,610 kW
Standard Gross Power - SAE J1995
3,500 HP
2,610 kW
Engine Model
Cat® C175-16
Optional Gross Power - SAE J1995
3,100 HP
2,312 kW
Optional Gross Power - SAE J1995 (Option 2)
2,750 HP
2,051 kW
Rated Speed
1,800 r/min
1,800 r/min
Net Power - SAE J1349
3,405 HP
2,539 kW
Emissions Rating
Fuel Optimized
Bore
6.9 in
175 mm
Stroke
8.7 in
220 mm
Displacement
5,187 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)
Final Drives
Total Reduction Ratio
35:01:00
ROPS
ROPS Standards
ROPS (Rollover Protective Structure) meets ISO 3471:1994.
FOPS Standards
FOPS (Falling Object Protective Structure) meets ISO 3449:1992.
Service Refill Capacities
Fuel Tank
1,300 gal (US)
4,922 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)
1,121 l
Hydraulic System - Including Tank
385 gal (US)
1,458 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.
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 °
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.
Weight Distributions - Approximate
Front Axle - Empty
49 %
49 %
Rear Axle - Empty
51 %
51 %
Front Axle - Loaded
33 %
33 %
Rear Axle - Loaded
67 %
67 %
Weights - Approximate
Nominal Rated Payload
327 ton (US)
297 t
Rated Gross Machine Weight
1,150,000 lb
521,631 kg
Chassis Weight
426,237 lb
193,338 kg
Body Weight
64,346 lb
29,187 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)
- 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
- C175-16 Diesel Engine
- 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
- 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
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