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Off-highway trucks 794 AC
Request a QuoteKey Information
Engine Model
297 t
Nominal machine weight
521,631 kg
Gross power - SAE J1995
2,610 kW
Overview
High Payloads. High Speeds. Superior Braking Capacities.
The CAT 794 Electric Drive Truck® has a payload of 327 tons, a higher speed on slopes, a 34% higher retarding power compared to competing trucks, better braking performance, and easier maintenance. The result? High availability, more confident users, and increased productivity. The 794 features an electric powertrain designed, integrated, and supported by Caterpillar. Validated by numerous mining operations worldwide, the 794 has demonstrated its performance in a wide range of applications, making it the ideal choice for a variety of applications. Its hauling capacity exceeds every load, every cycle, and every workday. Furthermore, it delivers better results at the largest mine: yours.
AdvantagesUp to 8% More Payload
Thanks to reduced empty weight and a higher nominal gross machine weight, the nominal payload is higher than that of competing trucks.
34% Additional Retarding Power
Superior retarding power and oil-cooled disc brakes on all four wheels enhance driver confidence.
Improved Gradeability Up to 8%
Can travel at a maximum speed of 60 km/h / 37 mph while loaded on a maximum slope of 28%.
Key Features
- Security
- The productivity
- Driver Comfort
- Versatility
- Ease of maintenance
- Training Ca and powertrain group
- Durability
- Technological solutions
Security
Better visibility thanks to the wide field of vision in the cabin. 600 mm (24 in) wide steps, a flat platform, kick plates, and motorized step (optional) ensure safe ascent and descent. Features aimed at enhancing confidence, such as an anti-tip system, traction controls, a parking brake alarm when the driver leaves the cabin, and an automatic retarder. Best-in-class braking, with oil-immersed disc brakes on all four wheels with mixed and dynamic mechanical maneuvering brakes, plus an automatic retarder control that facilitates and improves deceleration. Ground-level locking system, engine and propulsion locking system (in the ECM cabinet), VIMS monitoring center, and energy dissipation function when stopping.
The productivity
Physical availability proven at 90%. Increased speed that allows for transporting more materials in a work period, or transporting the same amount of materials with fewer trucks. Lower empty weight and better nominal gross weight of the machine for a greater nominal payload than on competing trucks. Ease of use and cost reduction through the integration of the Cat engine, AC drive system, hydraulic circuit, and controls. Excellent control at low speeds in maintenance areas and optimal accelerator response for leaving loading or unloading zones.
Driver Comfort
Ergonomic layout in the cabin, excellent panoramic visibility as well as controls, levers, and switches positioned to facilitate their use. Automatic air conditioning, reduction of vibrations and noise level. Next-generation seat, equipped with a height adjustment device, adjustable shoulder support to prevent rubbing of the seat belt, as well as back, side, and lumbar supports to increase stability.
Versatility
Proven in the field and in service worldwide - on four continents and in nine countries. Ideal for a variety of applications and ores: soft rock, hard rock, deep pit and flat transport; low altitude, high altitude, high ambient temperatures and cold weather. Power performance optimization allows the 794 to operate in all areas of the mine: from deep pits to downhill routes; from flat and smooth roads to areas with high rolling resistance, all with the same engine. Greater power is available to enhance productivity in deeper pits, and easy adjustment to lower power allows the 794 to better align with mixed fleets and maintain fuel costs at a lower level.
Ease of maintenance
Open engine access door and platforms for engine, alternator, and converter maintenance, as well as filters and maintenance points at ground level. Component layout with reduced hydraulic circuit, all hydraulic pipes on one side and electrical wiring on the other side. Separate traction motors, brakes, and reducers. Modular component design for easy installation and removal. AC grid fan motor for longer lifespan and reduced maintenance, plus pressurized and filtered AC drive that requires less maintenance.
Training Ca and powertrain group
Reduced operating costs thanks to the integrated engine and powertrain, designed, validated, and manufactured 100% by Caterpillar. Radial deceleration grid with AC electric motor that requires no regular engine maintenance and is quieter and lighter than enclosed grids. AC dynamic drive deceleration provides continuous braking power, and an AC electric motor reduces maintenance. High voltage IGBT circuits for maximum efficiency of the AC drive system, and a brushless double-bearing alternator that offers a long lifespan and reduced maintenance, without the need for timing. Variable hydraulic fan, which ensures optimized cooling, even at idle, for increased component performance and lifespan.
Durability
Designed to use less fuel, which reduces engine emissions and carbon footprint. Engine compliant with the American EPA Tier 4 Final / European Stage V standard (optional) which reduces NOx emissions by 62% and particulate matter by 93% compared to Tier 1 emission levels. Waste reduction through centrifugal oil filter (COF), improved engine oil filtration module (EEOF), standard self-cleaning engine filter, extended oil change intervals, and reduced oil consumption. Engines compatible with diesel fuel blended with low carbon intensity fuels such as biofuels and renewable fuels, as well as power options such as trolley. Cat Rebuild and Cat Reman programs, which preserve raw materials, save energy, and reduce emissions.
Technological solutions
Equipped as standard with the Product Link™ Elite monitoring system, which provides information on the status and payload to maintain high performance and enable proactive maintenance planning. Factory pre-equipped for a Cat MineStar™ Command system for fully integrated transport, an autonomous transport solution proven to increase productivity by up to 30%. Optional MineStar Fleet system, a fleet monitoring system, to measure, manage, and optimize all transport operations. Optional MineStar Detect proximity detection system, which uses cameras to give the driver a better view of what is happening around their equipment. The optional Cat Driver Safety System (DSS) alerts the driver if signs of fatigue or distraction are detected.
Product Specifications for 794 AC
- ENGINE
- Gross Power - SAE J19952610 kW
- Gross Power Standard - SAE J19952610 kW
- Engine ModelC175-16 CAT®
- Gross Power with Option - SAE J19952312 kW
- Gross Power Optional - SAE J1995 (Option 2)2051 kW
- Rated Speed1800 RPM
- Net Power - SAE J13492539 kW
- Emissions RateFuel Consumption Optimization
- Bore175 mm
- Stroke220 mm
- Displacement85 l
- Note (1)Contact factory for high altitude arrangement.
- Note (2)Tier 4 / EU Stage V option available for regions that require these emission standards.
- Note (3)Tier 4 / EU Stage V engine option, Net Power - SAE J1349: 3434 HP (2561 kW)
- WEIGHT (APPROXIMATE)
- Nominal Payload297 t
- Nominal Gross Machine Weight521631 kg
- Chassis Weight193338 kg
- Body Weight29187 kg
- Note (1)Contact tire manufacturer for maximum load.
- Note (2)Chassis weight includes full fuel and fluids, standard and mandatory equipment, 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 allowances.
- Note (4)Tier 4 Final / Stage V chassis weight: 193 372 kg (426 312 lb)
- FINAL DRIVES
- Gear Ratio - Total35:01:00
- AC DRIVE SYSTEM
- Gear Ratio - Total35:01:00
- Maximum Speed, Loaded60 km/h
- AlternatorBrushless, mounted on engine, double bearing
- ControlIGBT inverter technology, pressurized and air-cooled cabinet, with filtration
- Wheel MotorHigh-torque induction AC, mounted on rear axle
- Cooling CircuitVariable-speed hydraulic-driven cooling circuit
- TIRES
- Standard Tires53/80 R63
- Rims36" x 63"
- Note (1)Quick change rims available as option.
- Note (2)Caterpillar recommends a comprehensive study of the intended application and consultation with the tire supplier for proper tire selection and TKPH (TMPH) capabilities.
- BRAKE SYSTEM
- Service BrakesFour-wheel, oil-cooled, hydraulic control, oil-cooled, oil-immersed disc brakes
- Front Oil-Cooled Disc Brake Surface Area131473 cm²
- Rear Oil-Cooled Disc Brake Surface Area198388 cm²
- StandardsISO 3450:2011
- Parking BrakeSpring-applied, hydraulically released, multidisc, on all wheels
- Secondary BrakeRear wheel dynamic braking
- Dynamic Retarding - Continuous4086 kW
- Electric RetardingGrid design
- WEIGHT DISTRIBUTION, APPROXIMATE
- Empty Front Axle49%
- Empty Rear Axle51%
- Loaded Front Axle33%
- Loaded Rear Axle67%
- BODY HOIST
- Pump Flow at Maximum Engine Speed (HAA at 1800 RPM)840 l/min
- Pump Flow at Maximum Engine Speed (LAA at 1960 RPM)910 l/min
- Hoist Relief Valve Setting20884 kPa
- Raising Time - High Idle24 s
- Lowering Time - High Idle, Free Flow20 s
- Total Cycle Time44 s
- Note (1)Twin two-stage hydraulic cylinders, internally mounted in the main frame; double-acting cylinders on both stages.
- Note (2)Forced oil supply to both stages for lifting and lowering.
- Note (3)Automatic body descent control reduces impact loads on the frame.
- BODY CAPACITY: HE BODY, 100% FILL FACTOR
- Struck108-133 m³ (142-175 yd³)
- Heaped (SAE2:1)180-222 m³ (236-290 yd³)
- Dump Body Plate Thickness Varies by Body Model - Floor Plate16 mm
- Dump Body Plate Thickness Varies by Body Model - Front Plate9 mm
- Dump Body Plate Thickness Varies by Body Model - Side Plate8 mm
- Dump Body Plate Thickness Varies by Body Model - Roof Plate5 mm
- NoteFor more information on the body, please contact your local Cat dealer.
- MAINTENANCE CAPACITIES
- Fuel Tank4922 l
- Cooling System799 l
- Crankcase310 l
- Final Drives - Each254 l
- Hydraulic Tank1121 l
- Hydraulic System - Including Tank1458 l
- Diesel Exhaust Fluid Tank378 l
- Note (1)DEF tank available only for Tier 4 / EU Stage V engine option.
- ROPS
- ROPS Standards (Roll-Over Protective Structure)ROPS frame meets ISO 3471:1994 standards.
- FOPS StandardsFOPS frame meets ISO 3449:1992 standards.
- SOUND LEVELS
- Acoustic Standards (1)Sound pressure level measured following specified duty cycle procedures of ISO 6394 and 6396 is 75 dB(A) for a Caterpillar cab properly installed and maintained per Caterpillar recommendations, tested with doors and windows closed.
- Acoustic Standards (2)Hearing protection may be needed when operating with an open operator station/cab (when not properly maintained or when doors/windows are open) for extended periods or in noisy environments.
- STEERING
- Steering StandardsISO 5010:2007
- NoteGross weight as determined by the manufacturer is 521631 kg (1150000 lb).
- Steering Angle39°
- DIMENSIONS (APPROXIMATE)
- Height - Top of ROPS6779 mm
- Overall Length15463.5 mm
- Wheelbase6644.5 mm
- Rear Axle - Overall Rear4716 mm
- Ground Clearance906 mm
- Dump Clearance1555 mm
- Loading Height - Empty6995 mm
- Overall Height - Body Raised14747 mm
- Front Axle - Centerline to Center of Tires7024 mm
- Front Axle Ground Clearance969 mm
- Roof Width - Without Optional Rock Deflectors9068 mm
- Outside Body Width9062 mm
- Inside Body Width8560 mm
- Height at Front of Canopy8024 mm
- Rear Axle - Dump Height934 mm
- Rear Axle - Centerline to Centerline of Dual Tires5727 mm
- Overall Tire Width8738 mm
- Overall Canopy Width9611 mm
- OPERATING CHARACTERISTICS
- Note (2)Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight allowances.
- Note (1)Rated payload depicted is based on no debris, options, or extra equipment included.
Standard Equipment for 794 AC
-
POWERTRAIN
- C175-16 Diesel Engine:
- - Turbocharged (4)/Aftercooled
- - Air-to-Air Aftercooler (ATAAC)
- - Quad-Element Air Cleaner with Precleaner
- - High Idle Control
- - Multi-Point Oil Pressure Sensor
- - Engine Pre-Lubrication
- Braking System:
- - Brake Release System for Towing
- - Oil-Cooled Multi-Disc Brakes (Front and Rear) (Parking, Dynamic Retarding, Service, and Retarder)
- - Automatic Retarder Control
- - Electric Dynamic Retarding Combined with Low-Speed Brake Retarding
- - Long-Life Brake Material Discs
- Cat AC Power Train:
- - Cat AC IGBT Induction Motors
- - AC Generator
- - AC Grid Cooler
- Neutral Coast Inhibit with Body Raise
- Programmable Maximum Speed
- Continuous Rear Axle Lubrication/Filtration
- Reverse Inhibit
- Directional Shift Management
- Neutral Start Interlock
- Retarder Shift Inhibit
- Neutral Start Disable
-
ELECTRICAL EQUIPMENT
- Reverse Warning
- 150A Brushless Alternator
- 12V Batteries (8) 90Ah
- Electric Converter, 12V
- 24V Electrical System, 10A, 15A, 20A Fuses and Circuit Breakers
- Battery Charger Receptacle
- Lighting, Signals/Maintenance:
- - Halogen Light Kit
- - Backup and Hazard Lights
- - Turn Signals (Front and Rear, Diode Type)
- - Front Access Ladder/Service Platform
- - Stop/Tail Lights (Diode Type)
- - Engine Compartment
- - Converter Energy Warning LED Indicators
-
DRIVER'S COMPARTMENT
- Air Conditioner
- 12V DC Power Supply (1)
- Cup Holder (2)
- Diagnostic Connection Port
- Ceiling Light
- Ambient Radio Readiness:
- - 20A Switched/10A Memory Converter
- - Speakers and Wiring Harness
- Instruments/Indicators
- Temperature: Hydraulic Oil
- Temperature: Engine Coolant
- Fuel Level
- DEF Level Indicator (Tier 4 / Stage V only)
- Electric Drive Control Fault Indicator
- Electric Maintenance Meter
- Speedometer
- Tachometer
- VIMS Advisor Message Center
- Heater/Defroster
- Behind-Seat Storage Space
- Isolated/Insulated ROPS (Roll-Over Protective Structure) Cab
- Driver's Seat, Air-Suspension
- Three-Point Driver Side Seat Belt
- Instructor Seat, Air-Suspension
- Two-Point Instructor Side Seat Belt
- Tilt and Telescoping Steering Column
- Tinted Glass
- Electric Window, Driver/Passenger Side
- Windshield Wiper, Intermittent Control and Washer
- Fixed Access Ladder
-
FLUIDS
- Long-Life Coolant to -35°C (-30°F)
-
OTHER STANDARD EQUIPMENT
- Traction Control System
- Quick "Buddy" Dump Coupler
- Quick Steer Hookup (Towing)
- Rotating Component Guards
- Dual-Fill Fuel System (Left and Right Side)
- Fast Fuel DEF System (Right Side) - Tier 4 / Stage V only
- Fuel Filter with Water Separator
- Ground-Level Battery Disconnect
- Machine Lockout
- Anti-Start System Lockout
- ECM Cabinet Lockout
- Ground-Level Engine Shutdown
- Rock Ejector (Chain)
- Front Tow Hooks and Pin
- Rear Tow Pin (Empty Hauler Only)
- Mud Flaps
- Coolant Level Indicator (On Radiator)
- Automatic Lubrication System
- S•O•S Sampling Ports (Hydraulic, Coolant, Engine)
Available Options for 794 AC
-
OPTIONAL EQUIPMENT
- Options of 2050kW (2750HP) and 2312kW (3100HP) available
- HAA Configurations available
- Throttle Lock
- Engine Shutdown Timer
- Heat Diffusion Bucket
- Gel Batteries (8)
- Xenon (HID) Headlamp Kit
- LED Lighting Kit
- Fog Lights
- LED Spotlights
- Instruments in Imperial or Metric Units
- Payload Display, Digital
- Motorized Access Ladder
- Converter Platform
- Quick Fuel Circuit Fill Device (Front and Right)
- Rims: Six (6) Position and Quick Change
- ANSI and ISO Maintenance Instructions
- Slow Down Indicator Light
- Cabin Base for Additional Display
- Radio/CD Player
- Front Bumper Tow Equipment
- Brake Wear Indicator
- Coolant, -50°C (-58°F)
- Rock Compartment Reinforcement for HE Dump Body
- Rock Deflectors for HE Dump Body Roof
- Heated Mirrors (Left and Right)
- Rear Axle Oil Cooler
- Standard Accumulators and Australia/Canada Certified Accumulators
- Hot Start, Cold Weather
- Diesel Fuel Heater
- Wheel Chocks (ANSI or ISO)
- Portable Fire Extinguisher
- Murphy Gauge
- High-Efficiency Dump Body
- Density 1543kg/m³ (2600lb/yd³) Dump Body
- Density 1721kg/m³ (2900lb/yd³) Dump Body
- Density 1839kg/m³ (3100lb/yd³) Dump Body
- Density 2076kg/m³ (3500lb/yd³) Dump Body
- Roof Extension
- Rock Box
- Side Profile Lighting
- Centralized Maintenance
- Language Display Selection - English, Spanish, Italian, Portuguese, Dutch, Norwegian, Swedish, Estonian, Latin, Lithuanian, Slovak, Slovenian, Greek, Romanian, Russian, Polish, Czech, Hungarian, Icelandic, Finnish, Danish, Thai, Indonesian, Vietnamese, Malay, Chinese
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