798 AC Electric Drive Mining Truck

Overview

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.

Key Features

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

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Specifications

Gross Power - SAE J1995	3500 hp
Engine Model	Cat® C175-16
Net Power - SAE J1349	3405 hp
Optional Gross Power - SAE J1995	3100 hp
Rated Speed	1800 r/min
Emissions Rating	Fuel Optimized
Bore	6.9 in
Stroke	8.7 in
Displacement	5187 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 Model	Cat® C175-20
Gross Power SAE J1995:2014	4150 hp
Net Power - SAE J1349:2011	4000 hp
Rated Speed	1750 r/min
Emissions Rating	Fuel Optimized
Bore	6.9 in
Stroke	8.7 in
Displacement	6469 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

Rated Gross Machine Weight	1375000 lb
Chassis Weight	453826 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.
Nominal Rated Payload	410 ton (US)

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

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

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.

Service Brakes	Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area	22642 in²
Rear - Wet Disc Brake Surface Area	32730 in²
Standards	Service and Secondary: ISO 3450:2011
Electric Retarding	Radial Grid Design
Dynamic Retarding Power - Continuous	5480 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

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.

Type	Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle	257.3 gpm
Relief Valve Setting - Raise	3029 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.

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	5 in

Fuel Tank	1300 gal (US)
Fuel Tank (Tier 4)	1200 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 System - Including Tank	385 gal (US)
Hydraulic Tank	296 gal (US)
Grease Tank	90 lb
Note (1)	DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option

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

Air Conditioning	HFC - 134A refrigerant: 21,600 Btu/h
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.
FOPS Standards	FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.

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

Steer Angle	39 °
Turning Diameter - Front	106.3 ft
Steering Standards	ISO 5010:2019
Note	Turning Diameter (ISO 7457:1997)

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