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Mining Trucks

798 AC Electric Drive Mining Truck

Nominal Rated Payload

410 ton (US)

Rated Gross Machine Weight

1,375,000 lb

Gross Power - SAE J1995

3,500 HP

SPECIFICATIONS

The Cat® 798 AC electric drive truck is designed to haul more — with more efficiency, controllability, and reliability than any other electric drive truck in the marketplace. And while it may be a recent addition to the Cat ultra-class lineup, it delivers the same powerful, proven performance you expect from a Cat truck. The 798 AC delivers a payload up to 372 tonnes (410 tons), high speed on grade, easier maintenance, and excellent electric retarding and brake performance. The result? Improved productivity, high availability, and more confident operators.

    AC Drive System

    Total Reduction Ratio

    35:01:00

    Top Speed - Loaded

    40 mile/h

    Generator/Alternator

    Brushless, engine mounted, dual bearing

    Controls

    IGBT Inverter Technology, air cooled, pressurized cabinet with filtration

    Wheel Motor

    Cat high-torque AC induction, rear axle mounted

    Cooling System

    Cat variable speed, hydraulically driven cooling system

    Body Hoists

    Type

    Twin, two-stage hydraulic cylinders with snubbing valve.

    Pump Flow - High Idle

    257.3 gal/min

    Relief Valve Setting - Raise

    3,029 psi

    Body Raise Time - High Idle

    21 s

    Body Lower Time - Float

    22 s

    Body Power Down- High Idle

    17.5 s

    Note (1)

    Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages.

    Note (2)

    Power raise in both stages; power down capability in both stages.

    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

    22,642 in²

    Rear - Wet Disc Brake Surface Area

    32,730 in²

    Standards

    Service and Secondary: ISO 3450:2011

    Electric Retarding

    Radial Grid Design

    Dynamic Retarding Power - Continuous

    5,480 HP

    Parking Brakes

    Four-corner, Multi-disc, Spring Applied, Hydraulically Released

    Load Brake

    Rear service brakes

    Note

    Anti-Lock Brake System (ABS) optional with CMD package

    Cab

    Air Conditioning

    HFC - 134A refrigerant: 21,600 Btu/h

    Heater / Defroster

    24,600 Btu/h

    Note

    Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning.

    ROPS Standards (1)

    The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008.

    ROPS Standards (2)

    ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.

    FOPS Standards

    FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.

    Capacity - HE Body - 100% fill factor

    Struck

    129-200 m³ (168-261 yd³)

    Heaped (SAE 2:1)

    218-276 m³ (285-361 yd³)

    Note

    Contact your local Cat dealer for body recommendations.

    Dimensions (Approximate)

    Height - Top of ROPS

    22.1 ft

    Overall Length

    51.44 ft

    Wheel Base

    21.9 ft

    Rear Axle - Tail

    16.07 ft

    Dump Clearance - Empty

    5.72 ft

    Loading Height - Empty

    25.54 ft

    Overall Height - Body Raised

    48.85 ft

    Centerline Front Tire Width

    23.06 ft

    Front Axle Clearance - Loaded

    2.81 ft

    Overall Canopy Width (with rock deflectors)

    33.15 ft

    Outside Body/Canopy Width (without rock deflectors)

    31.62 ft

    Inside Body Width

    29.44 ft

    Front Canopy Height - Empty

    26.01 ft

    Rear Axle Clearance - Loaded

    2.8 ft

    Centerline of Rear Dual Tire Width

    19.5 ft

    Overall Tire Width - Empty

    30.27 ft

    Overall Length (High Altitude only)

    51.87 ft

    Note

    Dimensions listed includes canopy deflectors

    Engine

    Gross Power - SAE J1995

    3,500 HP

    Engine Model

    Cat® C175-16

    Net Power - SAE J1349

    3,405 HP

    Optional Gross Power - SAE J1995

    3,100 HP

    Rated Speed

    1,800 r/min

    Emissions Rating

    Fuel Optimized

    Bore

    6.9 in

    Stroke

    8.7 in

    Displacement

    5,187 in³

    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)

    U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.

    Note (3)

    Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp

    Engine - High Altitude Only

    Engine Model

    Cat® C175-20

    Gross Power SAE J1995:2014

    4,150 HP

    Net Power - SAE J1349:2011

    4,000 HP

    Rated Speed

    1,750 r/min

    Emissions Rating

    Fuel Optimized

    Bore

    6.9 in

    Stroke

    8.7 in

    Displacement

    6,469 in³

    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

    Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp

    Service Refill Capacities

    Fuel Tank

    1,300 gal (US)

    Fuel Tank (Tier 4)

    1,200 gal (US)

    Diesel Exhaust Fluid Tank

    100 gal (US)

    Cooling System

    211 gal (US)

    Crankcase

    82 gal (US)

    Final Drive - Each

    67 gal (US)

    Hydraulic Tank

    296 gal (US)

    Hydraulic System - Including Tank

    385 gal (US)

    Grease Tank

    90 lb

    Note (1)

    DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option

    Service Refill Capacities - High Altitude Only

    Fuel Tank

    2,000 gal (US)

    Cooling System

    273 gal (US)

    Crankcase

    124 gal (US)

    Hydraulic Tank

    273 gal (US)

    Hydraulic System (includes tank)

    342 gal (US)

    Steering

    Steer Angle

    39 °

    Turning Diameter - Front

    106.3 ft

    Steering Standards

    Steering Standards: ISO 5010:2007

    Note

    Turning Diameter (ISO 7457:1997)

    Suspension

    Type

    Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments

    Effective Cylinder Stroke - Front

    10 in

    Effective Cylinder Stroke - Rear

    in

    Tires

    Rims

    44" x 63" Rims

    Standard Tires

    59/80 R63

    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

    47 %

    Rear Axle - Empty

    53 %

    Front Axle - Loaded

    33 %

    Rear Axle - Loaded

    67 %

    Note

    Weight distributions optimized with Cat body.

    Weights - Approximate

    Nominal Rated Payload

    410 ton (US)

    Rated Gross Machine Weight

    1,375,000 lb

    Chassis Weight

    453,826 lb

    Body Weight Range

    38 833 - 43 275 kg (85,611 - 95,406 lb)

    Note (1)

    Consult your tire manufacturer for maximum tire load.

    Note (2)

    Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires.

    Note (3)

    Body weight varies depending on how body is equipped.

    • POWER TRAIN
      • Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) Fuel Optimized , U.S. EPA Tier 2 equivalent (available for applicable markets)
      • Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) U.S. EPA Tier 4 Final / EU Stage V (available for applicable markets)
      • C175-16 Diesel Engine
        – Turbocharging (4) / Aftercooled (ATAAC)
        – Centrifugal oil filter
        – Self-cleaning oil filter
        – Charging Alternator (225 amp), brushless
        – Pre-lubrication/engine
        – Air cleaner with precleaner (4)
        – Multi-point oil pressure sensing
        – Exhaust - Muffler, Right Side Exit
      • Cat C175-20 Diesel Engine (High Altitude Only)
        - 3095 kW (4,150 hp) Fuel Optimized (available for applicable markets)
        - Centrifugal oil filter
        - Self-cleaning oil filter
        - Charging Alternator (225 amp), brushless
        - Pre-lubrication/engine
        - Air cleaner with precleaner (4)
        - Multi-point oil pressure sensing
        - Exhaust - Muffler, Right Side Exit
      • Braking system:
        – Electric dynamic retarding with blended low speed
        – Oil-cooled, Multi-disc (front and rear) - Service, Parking, Secondary
        – Load Brake (rear axle only)
        – Extended Life Brake Disc Material
        – Automatic Retarder Control (ARC)
        – Brake Release Motor (towing)
      • Cat® AC Drivetrain:
        – AC generator
        – AC induction motors (high-torque)
        – IGBT motor control
        – Radial retarding grid with AC motor control
        – Programmable top speed
        – TorqueBoost technology
        – Traction control system
      • Directional Shift Management:
        – Body-up reverse neutralizer
        – Body-up shift inhibitor
        – Reverse shift inhibitor
        – Neutral coast inhibitor
        – Neutral start inhibitor
      • Additional Features:
        – Rear axle continuous lubrication and filtration
        – Rear axle continuous oil cooling
    • OPERATION AND CONTROLS
      • Integrated ROPS/FOPS cab, insulated/sound suppressed
      • Seat, operator, air suspension, adjustable, heated/cooled
      • Seatbelt, operator, three point
      • Seat, trainer, air suspension, adjustable
      • Seatbelt, trainer, two point
      • Steering wheel, tilt, telescopic, horn
      • Horn, electric
      • Directional shift lever
      • Single Pedal Retarding & oil-cooled brake control
      • Automatic Retard Control (ARC) toggle switch
      • Load brake switch
      • Windshield with tinted/safety glass
      • Window, electric powered, operator/passenger
      • Windshield Wipers (2), intermittent control and washer
      • Visor (2)
      • Storage rear of seats
      • Cup holder (2)
      • Dome courtesy light
      • Entertainment radio ready with speakers and wiring harnesses
      • Converter, 12V
      • 12V DC power supply (1)
      • Mirrors, standard (Left-Flat, Right-Convex)
      • Fixed access ladder, left hand ground access
      • Fixed access ladder, right hand round access (High Altitude Only)
      • HVAC:
        – Pressurized, filtered environment
        – Air conditioner
        – Heater/defroster
      • Metric or English gauges:
        – Speedometer
        – Tachometer
        – Electric hour meter
        – Fuel level
        – DEF level (U.S. EPA Tier 4 Final / EU Stage V engines only)
        – Hydraulic oil temperature
        – Engine coolant temperature
      • Service & Information:
        – Diagnostic connection port
        – Electric engine control fault indicator
        – Alarm, Park brake / open operator door
        – Third party telematics port
        – VIMS message center advisor
    • ELECTRICAL
      • Audible Alarm, backup
      • Electrical system, 24V with fuses and breakers
      • Batteries, 12V (8) 90 amp hour
      • Ground level Battery charge receptacle
      • Lighting, signals/service:
        – Headlights (4 low beam, 4 high beam), LED
        – Headlights (4 low beam, 2 high beam), LED (High Altitude only)
        – Backup and marker/hazard, LED
        – Directional signals (front and rear), LED
        – Front stair access/service deck, LED
        – Stop/tail lights, LED
        – Engine compartment, LED
        – Inverter energy warning lights, LED
      • Payload indicator, red/green
      • Payload, digital display
    • ADDITIONAL FEATURES AND EQUIPMENT
      • Accumulators (Steering & Brake) – Australian and Canadian certified
      • Automatic lubrication system
      • Rotating component guards
      • Mud Flaps
      • Tow hooks and pins (front)
      • Tow pin (rear) (empty truck only)
      • 44 x 63 rims, six position (6)
      • Fueling:
        – 4922 L (1,300 gal) fuel tank (Fuel optimized engines only)
        – 4543 L (1,200 gal) fuel tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
        – 379 L (100 gallon) DEF tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
        – Fuel filter with water separator
        – 210 GPM Fast fill fuel system (Left and Right)
      • Service:
        – Engine service platforms (2)
        – ANSI or ISO service instructions
        – S•O•S℠ sample points (hydraulic oil, engine coolant, engine oil)
        – Ground level machine lockout (battery)
        – Ground level engine shut-down
        – Drivetrain lockout
        – Drivetrain lockout at ground level (High Altitude only)
        – Engine start lockout
        – Auxiliary "buddy" dumping quick connect
        – Auxiliary steering quick connect (towing)
    • CAT® TECHNOLOGY PRODUCTS
      • Cat® MineStar™ Detect (Radar and Camera) System
      • Cat® Product Link™ Elite (Cellular)
    • DUMP BODY
      • High Efficiency (HE) body, 218-276 m³ (285-361 yd³)
        – HE Body Mounting Group
        – Rock ejectors (chain)
    • ANTIFREEZE
      • Cat Extended Life Coolant (ELC) protects to –35° C (–30° F)

    • POWER TRAIN
      • Cat® C175-16 Diesel Engine: 2312 kW (3,100 hp) power setting (Fuel optimized / U.S. EPA Tier 2 equiv. engines only)
      • Cat C175-20 Diesel Engine (High Alititude only): 2983 kW (4,000 hp) power setting, Fuel Optimized (available for applicable markets)
      • Body heat exhaust
    • OPERATION AND CONTROLS
      • Throttle lock
      • Timer, engine shutdown
      • Heated mirrors (Left and Right)
      • Powered access ladder, left hand ground access
      • 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
    • OPERATIONS AND CONTROLS
      • Powered access ladder, right hand ground access (High Altitude only)
    • ELECTRICAL
      • Lighting, signals/service:
        – Fog lights, LED
        – Work lights, LED
        – Side profile lights, LED
        – Dump body marker/stop lights, LED
      • Retarding indicator light, multi-color, cab exterior
      • Payload, digital display
    • ADDITIONAL FEATURES AND EQUIPMENT
      • Fueling: 300 GPM Fast fill fuel system (Left and Right)
      • Portable fire extinguisher
      • Front bumper single-point center tow
      • Wheel chocks (ANSI and ISO)
      • 44 x 63 rims, quick change (2 quick change, 4 standard)
      • Service:
        – Inverter platform (rear access)
        – Service Center, fast-fill
    • CAT® TECHNOLOGY PRODUCTS
      • Cat® MineStar™ Detect (Camera Only) System
      • Cat® Product Link™ Elite (Satellite)
      • Cat® MineStar™ Health
      • Cat® MineStar™ Fleet
      • Cat® MineStar™ Terrain
      • Cat® MineStar™ Command-Ready
      • Cat® MineStar™ Command
      • Cat® Trolley Assist Attachment
    • DUMP BODY
      • HE rock box liner
      • HE canopy rock deflectors
      • HE rear tire rock deflectors
      • HE impact liner
      • Chain and solid bar
      • Canopy Extension
    • ANTIFREEZE
      • Antifreeze/coolant protects to –50° C (–58° F)

    WHY CHOOSE EMPIRE

    • Machines built tough and ready to run in rugged applications

    • Trusted advisors to help you find and maximize your equipment

    • Wide inventory of rental equipment that lets you try before you buy

    • Full service and support to ensure performance and longevity