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Off-highway trucks 798 AC
Request a QuoteKey Information
Nominal Payload (Tires 33.00R51)
372 t
Nominal machine weight
623,690 kg
Gross power - SAE J1995
2,610 kW
Overview
Transport More, More Efficiently and More Reliably
The CAT® 798 AC electric drive truck is designed to transport more materials, with greater efficiency, maneuverability, and reliability than any other electric drive truck on the market. Although it is a recent addition to the leading Cat range, this truck offers the same excellent performance you expect from Cat trucks. The 798 AC provides a payload of 372 tonnes (410 US tons), high speed on slopes, easier maintenance, and excellent electrical performance during deceleration and braking. The result? Improved productivity, high availability, and more confident drivers. By carrying more with each load, each cycle, and each workday, it creates a low-cost per ton transport operation that delivers better results.
Advantages
Excellent Nominal Payload
Offering the highest standard payload in its class
Up to 18% More Torque
Cat TorqueBoost technology unleashes the maximum capacity of the powertrain
Simpler and Less Frequent Maintenance
Thanks to better maintenance access, long maintenance intervals, maintenance-friendly layout, modular design, etc.
Key Features
- Security
- The productivity
- Driver Comfort
- Easy Maintenance
- Durability And Long Lifespan
- Durability
- Technological Solutions
- Cat Bins
Security
Better visibility thanks to the wide field of vision from the cabin and the radial retarder grid that improves the view on the right. 600 mm (23.6 in) wide steps, a flat platform, kick plates, and motorized steps (optional) secure the ascent and descent. Features aimed at enhancing confidence such as anti-rollover, traction controls, reverse passage limiter, automatic retarder control, and door sensor warning linked to parking brake engagement. Total dynamic braking through a compact radial grid, supported by the proven Caterpillar oil-cooled brake design on all four wheels, for stable maneuverability and safe braking. Fully independent secondary braking system that offers precise control in case of emergency through a hydraulic-controlled secondary brake pedal that serves as a backup to electronic controls.
The productivity
The most efficient electric drive dump truck in its category: it allows for moving more tons per liter (US tons per US gallon) and transporting more materials faster, which allows you to either do more during a work day or transport the same amount of materials with fewer dump trucks. Available with higher power to increase productivity in deeper quarries, as well as lower power, electronically adjustable, to allow the 798 to better adapt to mixed fleets. Ease of use and cost reduction thanks to the close integration of the Cat engine, AC drive system, hydraulic circuit, and controls. End-to-end visibility of all dump truck parameters to optimize energy efficiency, slope speed, and parasitic loads throughout the operating range. Excellent control of slow speed in maintenance areas as well as superior engine torque and acceleration when moving away from the excavator.
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.
Easy Maintenance
A high displacement, a nominal idle speed, and a reasonable nominal power improve productive time on tracks and reduce downtime. The intake manifolds and turbochargers are located outside the engine's "V", which provides more space for maintenance technicians to work on the upper part of the engine and in the engine bay. Sealed and pressurized inverter cabinet that requires no cleaning, eliminating hundreds of hours of maintenance over the life of the dump truck. Engine walkways and maintenance platforms, modular components, and ground-level grouped maintenance points for convenience. Extended oil change interval (up to three times) with standard engine equipment, including the centrifugal oil filter (COF) and the self-cleaning filter (SCF).
Durability And Long Lifespan
First general overhaul after 25,000 hours for reduced ownership cost, with a proven C175 engine and electric drive system. Validated and proven straight chassis beam design that eliminates bends and breaks generated at stress concentration locations. Exceptional durability ensured by a boxed construction that uses Caterpillar patented steel for excellent welding characteristics. Increased chassis lifespan thanks to fully boxed beams in critical areas, reducing stress levels. The chassis, powertrain, engine, and components are designed for refurbishment, offering multiple lives of like-new performance at a fraction of the new price.
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 thanks to the centrifugal oil filter (COF), self-cleaning engine filter as standard, 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 Driver Safety System (DSS) (optional) alerts the driver if signs of fatigue or distraction are detected.
Cat Bins
Bins designed to fit the chassis, sized to meet payload requirements and functioning as part of the dump truck system. Option for a high-efficiency (HE) tipping bin, lightweight, simplified, and durable. With its unique minimal structure design, the HE bin offers a long lifespan while minimizing weight for increased payload. HE bin sized and configured to meet the specific needs of the mine, induced by fragmentation, abrasion, cohesion, and loading equipment.
Product Specifications for 798 AC
- ENGINE
- Gross Power - SAE J19952610 kW
- Engine ModelC175-16CAT®
- Net Power - SAE J13492539 kW
- Gross Power with option - SAE J19952312 kW
- Rated Speed1800 rpm
- Emissions RateFuel consumption optimization
- Bore175 mm
- Stroke220 mm
- Displacement85 l
- Note (1)Net power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
- Note (2)USA EPA Tier 4 Final / EU Stage V available in applicable markets.
- Note (3)Selectable power ratings at optimized fuel consumption: 2312 kW / 3100 HP
- ENGINE - HIGH ALTITUDE ONLY
- Engine ModelC175-20CAT®
- Gross Power SAE J1995:20143095 kW
- Net Power - SAE J1349:20112983 kW
- Rated Speed1750 rpm
- Emissions RateFuel consumption optimization
- Bore175 mm
- Stroke220 mm
- Displacement106 l
- Note 1Net power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
- Note 2Selectable power ratings at optimized fuel consumption: 2983 kW / 4000 HP
- WEIGHTS (APPROXIMATE)
- Nominal Payload372 t
- Nominal Gross Machine Weight623690 kg
- Chassis Weight205852 kg
- Body Weight Range38,833 - 43,275 kg (85,611 - 95,406 lb)
- Note (1)Contact your tire manufacturer for maximum load capabilities.
- Note (2)Chassis weight includes full fuel, body mounting group, rims, and tires.
- Note (3)Body weight varies depending on the equipment it supports.
- APPROXIMATE WEIGHT DISTRIBUTION
- Front Axle, Empty47%
- Rear Axle, Empty53%
- Front Axle, Loaded33%
- Rear Axle, Loaded67%
- NoteWeight distributions optimized with Cat Body.
- AC DRIVE SYSTEM
- Total Reduction Ratio35:01:00
- Maximum Speed, Loaded64 km/h
- AlternatorBrushless, mounted on engine, double bearing
- ControlsIGBT inverter technology, pressurized air-cooled cabinet, with filtration
- Wheel MotorHigh torque induction motor, Cat mounted on rear axle
- Cooling SystemVariable-speed hydraulic-driven Cat cooling system
- TIRES
- Rims44" x 63" rims
- Standard Tires59/80R63
- Note (1)Quick Change Rims available as an option.
- Note (2)Caterpillar recommends that you consult the tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
- BRAKE SYSTEM
- Braking SystemFour-wheel, oil-cooled, hydraulic control, oil bath disc brakes
- Front Oil Bath Disc Brake Area146081 cm²
- Rear Oil Bath Disc Brake Area211163 cm²
- StandardsService and secondary brakes: ISO 3450:2011
- Electric RetarderRadial grid design
- Dynamic Retarding Power - Continuous4086 kW
- Parking BrakesFour-wheel, multidisc, spring applied hydraulically released
- Secondary BrakesRear wheel park brakes
- NoteAntilock Brake System (ABS) available with CMD package
- HE BODY CAPACITY, 100% VOLUME
- Struck129-200 m³ (168-261 yd³)
- Heaped (SAE2:1)218-276 m³ (285-361 yd³)
- NoteFor more information on the body, contact your local Cat dealer.
- BODY HOIST
- TypeTwo-stage, twin-acting cylinders with check valves.
- Pump Flow, maximum at rated speed964 l/min
- Relief Valve Setting, Hoist20884 kPa
- Hoist System Cycle Time, maximum at rated speed21 s
- Lowering Time - Empty at idle22 s
- Lowering Time - Loaded at idle17.5 s
- Note (1)Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders on both stages.
- Note (2)Forced-flow oil supply to both stages for hoisting and lowering.
- Note (3)Automatic Body Down Slowdown retards body impact on frame.
- SUSPENSION
- TypeNitrogen/oil cylinders, independent pin joint mounts, top and bottom shear pad trunnion mounts
- Front Suspension Stroke254 mm
- Rear Suspension Stroke133.35 mm
- FLUID CAPACITIES
- Fuel Tank4922 l
- Fuel Tank (Tier 4)4542 l
- Diesel Exhaust Fluid Tank379 l
- Cooling System799 l
- Differential - each254 l
- Hydraulic Tank - Including Lines1458 l
- Steering Tank1121 l
- Grease Tank41 kg
- Note (1)DEF Tank available only for USA EPA Tier 4 Final / EU Stage V engine option
- FLUID CAPACITIES - HIGH ALTITUDE ONLY
- Fuel Tank7571 l
- Cooling System1032 l
- Differential - each471 l
- Steering Tank1032 l
- Hydraulic Tank (including lines)1296 l
- CAB
- Air ConditioningHFC-134A refrigerant: 21,600 Btu/h
- Heater Defroster24,600 Btu/h
- NoteAmbient temperature capability down to -15°C (5°F) for heater defroster and up to 50°C (122°F) for air conditioning.
- ROPS Standards (1)A-weighted sound pressure level of 75 dB(A) when tested according to ISO 6394:2008 and ISO 6396:2008.
- ROPS Standards (2)Roll Over Protective Structure (ROPS) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
- FOPS StandardsFalling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
- STEERING
- Steering Angle39°
- Turning Circle Front32.4 m
- Steering StandardsSteering standards: ISO 5010:2007
- NoteTurning circle (ISO 7457:1997)
- DIMENSIONS (APPROXIMATE)
- Height - Top of ROPS6720 mm
- Overall Length15679 mm
- Wheelbase6674 mm
- Rear Axle - Rear Face4898 mm
- Dump Clearance - Empty1744 mm
- Loading Height - Empty7784 mm
- Overall Height - Raised Bed14890 mm
- Width - Centerline of Front Tires7028 mm
- Front Axle Ground Clearance - Loaded855 mm
- Roof Width (with rock
- deflectors)10103 mm
- Roof/Body Width (without rock deflectors)9639 mm
- Inside Body Width8973 mm
- Front of Bed Height - Empty7928 mm
- Rear Axle Ground Clearance - Loaded854 mm
- Centerline of Dual Rear Tires Width5943 mm
- Overall Tire Width - Empty9226 mm
- Overall Length (high altitude only)15810 mm
- NoteDimensions include roof deflectors.
- ROPS
- ROPS Standards (Roll-Over Protective Structure)Caterpillar ROPS meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
- FOPS StandardsFalling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
- OPERATING SPECIFICATIONS
- Note (2)Refer to Cat 10/10/20 Payload Policy for maximum gross machine weight allowances.
- Note (1)Payload is the weight of material that a truck body is rated to carry. Actual payload must be confirmed by Caterpillar dealer.
- NOISE LEVELS
- Acoustic 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 noisy environment.
- Acoustic Standards (1)A-weighted sound pressure level, measured per ISO 6394:2008 and ISO 6396:2008 procedures, is 75 dB(A) for a Cat cab properly installed and maintained, and tested with the doors and windows closed.
Standard Equipment for 798 AC
-
POWERTRAIN
- C175-16 CAT® Diesel Engine: 2610 kW (3500 HP), Fuel-Optimized, Equivalent to US EPA Tier 2 Standard (Available in Applicable Markets)
- C175-16 CAT® Diesel Engine: 2610 kW (3500 HP) USA EPA Tier 4 Final / EU Stage V (Available in Applicable Markets)
- C175-16 Diesel Engine
- Turbochargers (4) / Air-To-Air Aftercoolers (ATAAC)
- Centrifugal Oil Filter
- Self-Cleaning Oil Filter
- 225 A Brushless Charging Alternator
- Engine Pre-Lubrication
- Air Filter with Pre-Cleaner (4)
- Multi-Point Oil Pressure Sensors
- Exhaust Silencer, Right-Side Exit
- C175-20 Cat Diesel Engine (High Altitude Only)
- - Fuel-Optimized 3095 kW (4150 hp) (Available in Applicable Markets)
- - Centrifugal Oil Filter
- - Self-Cleaning Oil Filter
- - 225 A Brushless Charging Alternator
- - Engine Pre-Lubrication
- - Air Filter with Pre-Cleaner (4)
- - Multi-Point Oil Pressure Sensors
- - Silencer, Right-Side Exit
- Brake System:
- Combined Electric Dynamic Retarder with Low-Speed Braking
- Oil-Cooled Multi-Disc Brakes (Front and Rear) - Service, Parking, and Auxiliary
- Retarder Brake (Rear Axle Only)
- Long-Life Brake Discs
- Automatic Retarder Control (ARC)
- Brake Release Motor (Tow Release)
- CAT® AC Powertrain:
- Alternating Current Generator
- High-Torque AC Induction Motors
- IGBT Motor Control
- Regenerative Slowdown Grid with AC Motor Control
- Programmable Maximum Speed
- TorqueBoost Technology
- Advanced Traction Control System
- Direction Change Management:
- Back-Neutralizer with Raised Body
- Gear Change Limiter with Raised Body
- Reverse Inhibitor
- Neutral Lockout
- Neutral Start Limiter
- Additional Functions:
- Continuous Lubrication and Filtration for Rear Axle
- Continuous Oil Cooling for Rear Axle
-
DRIVER'S CAB AND CONTROLS
- Integrated ROPS/FOPS Cabin, Isolated/Sound-Reduced
- Driver's Seat, Air-Suspended, Adjustable, Heated/Cooled
- Three-Point Seatbelt, Driver's Side
- Instructor Seat, Air-Suspended, Adjustable
- Two-Point Seatbelt, Instructor's Side
- Tilt and Telescoping Steering Wheel, Horn
- Electric Horn
- Directional Change Lever
- Single-Pedal Retarder and Oil-Cooled Brake Control
- Automatic Retarder Control (ARC) Toggle Switch
- Brake Release Switch
- Windshield with Tinted/Safety Glass
- Power Windows, Driver/Passenger Side
- Windshield Wipers (2), Intermittent Control and Washer
- Sun Visors (2)
- Seatback Storage
- Cup Holders (2)
- Overhead Dome Light
- Ambient Radio Preparation with Speakers and Wiring Harness
- Converter, 12 V
- 12V DC Power Outlet (1)
- Mirrors, Standard (Flat Left, Convex Right)
- Fixed Access Ladder, Ground Level Access on Left Side
- Fixed Access Ladder, Ground Level Access on Right Side (High Altitude Only)
- Heating/Ventilation/Air Conditioning:
- Pressurized, Filtered Environment
- Air Conditioner
- Heater/Defroster
- Imperial or Metric Units Instruments:
- Speedometer
- Tachometer
- Electric Maintenance Meter
- Fuel Level Gauge
- DEF Level (US EPA Tier 4 Final / EU Stage V Engines Only)
- Hydraulic Oil Temperature
- Engine Coolant Temperature
- Maintenance and Information:
- Diagnostic Connector Port
- Electric Motor Control Fault Indicator
- Parking Brake/Driver's Door Open Alarm
- Third-Party Telematics Connector Port
- VIMS Message Center with Advisor
-
ELECTRICAL EQUIPMENT
- Backup Alarm
- 24 V Electrical System with Fuses and Circuit Breakers
- Batteries, 12 V (8) 90 Ah
- Ground-Level Battery Charging Receptacle
- Lighting, Signals/Maintenance:
- Headlights (4 Low Beam, 4 High Beam), LEDs
- Headlights (4 Low Beam, 2 High Beam), LEDs (High Altitude Only)
- Reversing and Clearance/Warning Lights, LEDs
- Turn Signals (Front and Rear), LEDs
- Access Ladder Front Lighting/Maintenance Platform, LEDs
- Stop/Tail Lights, LEDs
- Engine Compartment Lighting, LEDs
- Converter Energy Warning Indicators, LEDs
- Payload Indicator, Red/Green
- Payload Display, Digital
-
ADDITIONAL EQUIPMENT AND FEATURES
- Accumulators (Steering and Braking) - Certified for Australia and Canada
- Automatic Lubrication System
- Rotating Component Guards
- Fender Flaps
- Towing Hooks and Pins (Front)
- Towing Pin (Rear) (Empty Haul Only)
- 44 x 63 Wheels, Six-Position (6)
- Fueling System:
- 4922 L (1300 US gal) Fuel Tank (Fuel-Optimized Engines Only)
- 4543 L (1200 US gal) Fuel Tank (US EPA Tier 4 Final / EU Stage V Engines Only)
- 379 L (100 US gal) DEF Tank (US EPA Tier 4 Final / EU Stage V Engines Only)
- Fuel Filter with Water Separator
- 210 GPM Fast-Fill Fueling System (Left and Right)
- Maintenance:
- Engine Maintenance Platforms (2)
- ANSI or ISO Maintenance Instructions
- S•O•S℠ Sampling Points (Hydraulic Oil, Engine Coolant, Engine Oil)
- Ground-Level Machine Shutdown Device (Battery)
- Ground-Level Engine Shutdown
- Powertrain Shutdown Device
- High-Altitude Ground-Level Powertrain Shutdown Device (High Altitude Only)
- Engine Start Inhibitor
- Auxiliary Dump "Buddy" Quick Coupler
- Auxiliary Steering Quick Coupler (Towing)
- CAT® TECHNOLOGIES
- CAT® Minestar™ Detect System (Radar and Camera)
- Cat Product Link™ Elite (Cellular)
-
DUMP BODY
- High-Efficiency (HE) Dump Body, 218-276 m³ (285-361 yd³)
- HE Body Mounting Group
- Rock Ejector (Chain)
-
ANTIFREEZE
- Cat Extended Life Coolant (ELC) Protecting Down to –35°C (–30°F)
Available Options for 798 AC
-
POWERTRAIN
- C175-16 CAT® Diesel Engine: Power Setting 2312 kW (3100 HP) (Optimized Fuel Consumption / EPA Tier 2 Equivalent Engines Only)
- C175-20 Cat Diesel Engine (High Altitude Only): Power Setting 2983 kW (4000 hp), Optimized Fuel Consumption (Available in Applicable Markets)
- Heat Diffusion Hood
-
DRIVER'S COMPARTMENT AND CONTROLS
- Throttle Lock
- Engine Shutdown Timer
- Heated Mirrors (Left and Right)
- Electric Access Ladder, Ground-Level Access on Left Side
- Powered Access Ladder, Side Ground-Level Access on Right Side (High Altitude Only)
- Monitor Language 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
-
ELECTRICAL EQUIPMENT
- Lighting, Signals/Maintenance:
- LED Fog Lights
- LED Work Lights
- LED Side Profile Lights
- LED Tipper Cab Lights/Stop Lights
- External Multicolor Slow-Moving Indicator Light
- Payload Digital Display
-
ADDITIONAL EQUIPMENT AND FEATURES
- Fueling System: 300 GPM Fast Fuel Fill System (Left and Right)
- Portable Fire Extinguisher
- Single Center Front Bumper Tow Point
- Wheel Chocks (ANSI and ISO)
- 44 x 63 Rims, Quick Change (2 Quick Change, 4 Standard)
- Maintenance:
- Converter Platform (Rear Access)
- Quick Fill Service Center
- CAT® TECHNOLOGY PRODUCTS
- CAT® MineStar™ Detect System (Camera Only)
- CAT® Product Link™ Elite (Satellite)
- CAT® MineStar™ Health
- CAT® MineStar™ Fleet
- CAT® MineStar™ Terrain
- CAT® MineStar™ Command Pre-Equipment
- CAT® MineStar™ Command
- CAT® Hauling Cat Support Equipment
-
DUMP BODY
- HE Body Compartment Reinforcement
- HE Roof Rock Deflectors
- HE Rear Tire Rock Deflectors
- HE Bumper Reinforcement
- Chain and Bar Mass
- Roof Extension
-
ANTIFREEZE
- Antifreeze/Coolant, Protection Down to -50°C (-58°F)
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