798 AC Mining Truck

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Overview

The Cat® 798 AC electric-drive truck is designed to haul more ore — with more speed, more stability and more reliability than any other electric-drive truck in the marketplace. And while it may be the newest addition to the Cat ultra-class lineup, it delivers the same powerful, proven performance you expect from a Cat truck. The 798 delivers a full 372-tonne (410-ton) payload, increased speed on grade, more retarding power than competitive trucks, superior brake performance and easier maintenance. The result? High availability, more confident operators and improved productivity.

Operating Specifications

Units:
Nominal Payload Capacity 410.0 ton (US) 372.0 t Less
Steer Angle 39.0 ° 39.0 ° Less
Note (2) Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. Less
Minimum Turning Radius 53.0 ft 16.2 m Less
Top Speed - Loaded 40.0 mile/h 64.0 km/h Less
Note (1) Payload assumes no debris, no extra options or attachments. Payload assumes no debris, no extra options or attachments. Less

Engine

Engine Model Cat C175-16 Cat C175-16 Less
Gross Power - SAE J1995 3500.0 HP 2610.0 kW Less
Bore 6.9 in 175.0 mm Less
Stroke 8.7 in 220.0 mm Less
Displacement 5187.0 in³ 85.0 l Less
Net Power - SAE J1349 3405.0 HP 2539.0 kW Less
Standard Gross Power - SAE J1995 3500.0 HP 2610.0 kW Less
Note (1) Contact factory for high altitude configuration. Contact factory for high altitude configuration. Less
Optional Gross Power - SAE J1995 3100.0 HP 2312.0 kW Less
Rated Speed 1800.0 r/min 1800.0 r/min Less
Emissions Rating Fuel Optimized Fuel Optimized Less

Final Drives

Total Reduction Ratio 35 to 1 35 to 1 Less

Service Refill Capacities

Fuel Tank 1300.0 gal (US) 4922.0 l Less
Crankcase 82.0 gal (US) 310.0 l Less
Hydraulic System - Including Tank 385.0 gal (US) 1458.0 l Less
Hydraulic Tank 296.0 gal (US) 1121.0 l Less
Cooling System 211.0 gal (US) 799.0 l Less
Final Drive - Each 67.0 gal (US) 254.0 l Less

Weight Distributions - Approximate

Rear Axle - Loaded 67.0 % 67.0 % Less
Rear Axle - Empty 53.0 % 53.0 % Less
Front Axle - Empty 47.0 % 47.0 % Less
Front Axle - Loaded 33.0 % 33.0 % Less

Capacity - HE Body - 100% fill factor

Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate 0.5 in 12.7 mm Less
Struck 126.4-187.2 m³ (165-245 yd³) 126.4-187.2 m³ (165-245 yd³) Less
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate 1.0 in 25.4 mm Less
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate 0.38 in 9.5 mm Less
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate 0.2 in 5.0 mm Less
Note Contact your local Cat dealer for body recommendations. Contact your local Cat dealer for body recommendations. Less
Heaped (SAE 2:1) 215.4-266 m³ (282-348 yd³) 215.4-266 m³ (282-348 yd³) Less

AC Drive System

Cooling System Variable speed, hydraulically driven cooling system Variable speed, hydraulically driven cooling system Less
Wheel Motor Cat AC induction, rear axle mounted Cat AC induction, rear axle mounted Less
Generator/Alternator Brushless, engine mounted, dual bearing Brushless, engine mounted, dual bearing Less
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration IGBT Inverter Technology, air cooled, pressurized cabinet with filtration Less

Braking System

Dynamic Retarding Power - Continuous 5480.0 HP 4086.0 kW Less
Rear - Wet Disc Brake Surface Area 30750.0 in² 198388.0 cm² Less
Electric Retarding Radial Grid Design Radial Grid Design Less
Standards ISO 3450:2011 ISO 3450:2011 Less
Front Wet Disc Brake Surface Area 20378.0 in² 131473.0 cm² Less

Dimensions (Approximate)

Centerline Front Tire Width 23.04 ft 7024.0 mm Less
Rear Axle - Tail 16.13 ft 4916.0 mm Less
Wheel Base 21.84 ft 6658.0 mm Less
Overall Length 51.59 ft 15724.0 mm Less
Note Dimensions based on SAE 2:1 230 m³ (301 yd³) HE Body. Dimensions based on SAE 2:1 230 m³ (301 yd³) HE Body. Less
Front Axle Clearance 3.37 ft 1026.0 mm Less
Inside Body Width 30.05 ft 9160.0 mm Less
Front Canopy Height 26.0 ft 7928.0 mm Less
Height - Top of ROPS 22.12 ft 6742.0 mm Less
Overall Height - Body Raised 49.25 ft 15011.0 mm Less
Ground Clearance 3.37 ft 1026.0 mm Less
Canopy Width (without optional rock deflectors) 31.62 ft 9638.0 mm Less
Centerline of Rear Dual Tire Width 19.5 ft 5943.0 mm Less
Loading Height - Empty 25.75 ft 7850.0 mm Less
Outside Body Width 31.62 ft 9638.0 mm Less
Dump Clearance 5.94 ft 1809.0 mm Less
Overall Tire Width 30.32 ft 9243.0 mm Less
Rear Axle - Clearance 3.59 ft 1094.0 mm Less

Weights - Approximate

Chassis Weight 451116.0 lb 204623.0 kg Less
Note (2) Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. Less
Note (3) Body weight varies depending on how body is equipped. Body weight varies depending on how body is equipped. Less
Note (1) Consult your tire manufacturer for maximum tire load. Consult your tire manufacturer for maximum tire load. Less
Body Weight Range 37 564-41 936 kg (82,814-92,453 lb) 37 564-41 936 kg (82,814-92,453 lb) Less
Target Gross Machine Weight (TGMW) 1375000.0 lb 623690.0 kg Less

ROPS

ROPS Standards ROPS (Rollover Protective Structure) cab offered by Caterpillar meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. ROPS (Rollover Protective Structure) cab offered by Caterpillar meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. Less
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 for Operator and ISO 13459:2012 Level II FOPS criteria for Trainer. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 for Operator and ISO 13459:2012 Level II FOPS criteria for Trainer. Less

Steering

Note Target Gross Machine Weight is 623 690 kg (1,375,000 lb). Target Gross Machine Weight is 623 690 kg (1,375,000 lb). Less
Steering Standards ISO 5010:2007 ISO 5010:2007 Less

Sound

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. 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. Less
Sound Standards (1) The operator sound pressure level measured according to work cycle procedures specified in ISO 6394:2008 and ISO 6396:2008 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed. The operator sound pressure level measured according to work cycle procedures specified in ISO 6394:2008 and ISO 6396:2008 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed. Less

Tires

Note (1) Production capabilities of the 798 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production. Production capabilities of the 798 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production. Less
Note (2) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection. Less
Standard Tires 59/80 R63. 59/80 R63. Less

Features:

  • High Performance Engine – The Cat® C175-16 engine offers reliability and durability with proven performance in the large mining truck application
  • Focus on Safety – Wide access stairways, service platforms for the engine, traction alternator and control cabinet, four corner wet disc brakes, and industry leading retarding
  • Enhanced Serviceability – Open engine and traction alternator access, simplified hydraulics, grouped electrical and hydraulic routing, ground level filters and service points
  • Reliable AC Electric Drive System – The Cat AC electric drive power train is Caterpillar designed, integrated and supported
  • Comfortable Cab – Operators find the spacious and quiet cab offers excellent visibility with intuitive, easy to learn controls
  • Truck Body Options – Caterpillar designed and built bodies provide optimal performance and reliability.

798 AC Standard Equipment

POWER TRAIN
  • C175-16 Diesel Engine
    – Turbocharging (4)/aftercooled
    – Air to air after cooler (ATAAC)
    – Air cleaner (4) with precleaner
    – 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
  • Rear axle oil cooler
  • Reverse shift inhibitor
  • Directional shift management
  • Standard accumulator – Australian and Canadian certified
  • Neutral coast inhibitor
  • Body-up shift inhibitor
  • Neutral start inhibitor

ELECTRICAL
  • Alarm, backup
  • Brushless alternator 225 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:
    – LED 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
    – 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 (RH side)
  • Fuel filter with water separator
  • Ground level battery lockout
  • Machine lockout
  • Engine start lockout
  • Ground level engine shut-down
  • Rock ejectors (chain)
  • Tow hooks and pin (front)
  • Tow pin (rear) (empty truck only)
  • Mudflaps
  • Automatic lubrication system
  • S·O·SSM sample points (hydraulic, cooling, engine)
  • Payload red/green indicator
  • Cat DETECT radar and camera system
  • Product Link™ Elite
  • 4922 L (1,300 gal) fuel tank and fast fill system (right hand fill)

798 AC Optional Equipment

OPTIONAL EQUIPMENT
  • 2312 kW (3,100 hp) setting available
  • Throttle lock
  • Timer, engine shutdown
  • Body heat exhaust
  • Fog lights
  • LED Work Lights
  • English or Metric gauges
  • Payload, digital display
  • Powered access ladder
  • Inverter platform
  • Fast fill fuel system (front and left)
  • Rims: Six (6) position and quick change
  • ANSI and ISO service instructions
  • Retarding indicator light
  • Front bumper center tow attachment
  • Brake wear indicator tool
  • Coolant –50° C (–58° F)
  • HE dump body rock box liner
  • Heated mirrors (LH and RH)
  • Wheel chocks (ANSI and ISO)
  • Portable fire extinguisher
  • Murphy gauge
  • High efficiency dump body
    – 1530 kg/m³ (2,580 lb/yd³) density body
    – 1650 kg/m³ (2,780 lb/yd³) density body
    – 1770 kg/m³ (2,980 lb/yd³) density body
  • Side profile lighting
  • Central service