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798 AC Electric Drive Mining Truck

798 AC Electric Drive Mining Truck

Hauls More - More Efficiently and Reliably

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More Comfort – More Performance – More Versatility

  • Class-Leading Nominal rated Payload

    Delivering the highest standard payload available in its size class

  • Up to 18% More Torque

    Unlock maximum drivetrain capability with Cat TorqueBoost technology

  • Easier Maintenance — Less Often

    With enhanced service access, long service intervals, service-friendly layouts, modular designs and more

Engine

Bore 6.9 in
Displacement 5187 in³
Emissions Rating Fuel Optimized
Engine Model Cat® C175-16
Gross Power - SAE J1995 3500 hp
Net Power - SAE J1349 3405 hp
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
Optional Gross Power - SAE J1995 3100 hp
Rated Speed 1800 r/min
Stroke 8.7 in

Engine - High Altitude Only

Bore 6.9 in
Displacement 6469 in³
Emissions Rating Fuel Optimized
Engine Model Cat® C175-20
Gross Power SAE J1995:2014 4150 hp
Net Power - SAE J1349:2011 4000 hp
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
Rated Speed 1750 r/min
Stroke 8.7 in

Weights - Approximate

Body Weight Range 38 833 - 43 275 kg (85,611 - 95,406 lb)
Chassis Weight 453826 lb
Nominal Rated Payload 410 ton (US)
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.
Rated Gross Machine Weight 1375000 lb

Weight Distributions - Approximate

Front Axle - Empty 47 %
Front Axle - Loaded 33 %
Note Weight distributions optimized with Cat body.
Rear Axle - Empty 53 %
Rear Axle - Loaded 67 %

AC Drive System

Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Cooling System Cat variable speed, hydraulically driven cooling system
Generator/Alternator Brushless, engine mounted, dual bearing
Top Speed - Loaded 40 mile/h
Total Reduction Ratio 35:01:00
Wheel Motor Cat high-torque AC induction, rear axle mounted

Tires

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.
Rims 44" x 63" Rims
Standard Tires 59/80 R63

Braking System

Dynamic Retarding Power - Continuous 5480 hp
Electric Retarding Radial Grid Design
Front Wet Disc Brake Surface Area 22642 in²
Load Brake Rear service brakes
Note Anti-Lock Brake System (ABS) optional with CMD package
Parking Brakes Four-corner, Multi-disc, Spring Applied, Hydraulically Released
Rear - Wet Disc Brake Surface Area 32730 in²
Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Standards Service and Secondary: ISO 3450:2011

Capacity - HE Body - 100% fill factor

Heaped (SAE 2:1) 218-276 m³ (285-361 yd³)
Note Contact your local Cat dealer for body recommendations.
Struck 129-200 m³ (168-261 yd³)

Body Hoists

Body Lower Time - Float 22 s
Body Power Down- High Idle 17.5 s
Body Raise Time - High Idle 21 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.
Pump Flow - High Idle 257.3 gal/min
Relief Valve Setting - Raise 3029 psi
Type Twin, two-stage hydraulic cylinders with snubbing valve.

Suspension

Effective Cylinder Stroke - Front 10 in
Effective Cylinder Stroke - Rear 5 in
Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments

Service Refill Capacities

Cooling System 211 gal (US)
Crankcase 82 gal (US)
Diesel Exhaust Fluid Tank 100 gal (US)
Final Drive - Each 67 gal (US)
Fuel Tank 1300 gal (US)
Fuel Tank (Tier 4) 1200 gal (US)
Grease Tank 90 lb
Hydraulic System - Including Tank 385 gal (US)
Hydraulic Tank 296 gal (US)
Note (1) DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option

Service Refill Capacities - High Altitude Only

Cooling System 273 gal (US)
Crankcase 124 gal (US)
Fuel Tank 2000 gal (US)
Hydraulic System (includes tank) 342 gal (US)
Hydraulic Tank 273 gal (US)

Cab

Air Conditioning HFC - 134A refrigerant: 21,600 Btu/h
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
Heater / Defroster 24600 Btu/h
Note Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning.
ROPS Standards (1) ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.

Sound

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

Steering

Note Turning Diameter (ISO 7457:1997)
Steer Angle 39 °
Steering Standards Steering Standards: ISO 5010:2007
Turning Diameter - Front 106.3 ft

Dimensions (Approximate)

Centerline Front Tire Width 23.06 ft
Centerline of Rear Dual Tire Width 19.5 ft
Dump Clearance - Empty 5.72 ft
Front Axle Clearance - Loaded 2.81 ft
Front Canopy Height - Empty 26.01 ft
Height - Top of ROPS 22.1 ft
Inside Body Width 29.44 ft
Loading Height - Empty 25.54 ft
Note Dimensions listed includes canopy deflectors
Outside Body/Canopy Width (without rock deflectors) 31.62 ft
Overall Canopy Width (with rock deflectors) 33.15 ft
Overall Height - Body Raised 48.85 ft
Overall Length 51.44 ft
Overall Length (High Altitude only) 51.87 ft
Overall Tire Width - Empty 30.27 ft
Rear Axle - Tail 16.07 ft
Rear Axle Clearance - Loaded 2.8 ft
Wheel Base 21.9 ft

Download resources

798 AC Tech Specs
798 AC Product Brochure
Brochure - Electric Drive Trucks Updates
798 AC Poster

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