798 AC Electric Drive Mining Truck

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.

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Specifications

Overview

Engine

Gross Power - SAE J1995

2610 kW

Engine Model

Cat® C175-16

Net Power - SAE J1349

2539 kW

Optional Gross Power - SAE J1995

2312 kW

Rated Speed

1800 r/min

Emissions Rating

Fuel Optimized

Bore

175 mm

Stroke

220 mm

Displacement

85 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)

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

Net Power - SAE J1349:2011

2983 kW

Rated Speed

1750 r/min

Emissions Rating

Fuel Optimized

Bore

175 mm

Stroke

220 mm

Displacement

106 l

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.

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.

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.

Grease Tank

41 kg

Note (1)

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

Wheel Base

6674 mm

Engine - High Altitude Only

Gross Power SAE J1995:2014

3095 kW

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

Weights - Approximate

Rated Gross Machine Weight

623690 kg

Chassis Weight

205852 kg

Body Weight Range

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

Nominal Rated Payload

372 t

Weight Distributions - Approximate

Front Axle - Empty

47 %

Rear Axle - Empty

53 %

Front Axle - Loaded

33 %

Rear Axle - Loaded

67 %

Turning Circle

Note

Weight distributions optimized with Cat body.

Note

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

Note

Contact your local Cat dealer for body recommendations.

Note

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

Note

Turning Diameter (ISO 7457:1997)

Note

Dimensions listed includes canopy deflectors

Final Drives

Total Reduction Ratio

35:01:00

Operating Specifications

Top Speed - Loaded

64 km/h

AC Drive System

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

Service Refill Capacities

Cooling System

Cat variable speed, hydraulically driven cooling system

Fuel Tank

4922 l

Fuel Tank (Tier 4)

4542 l

Diesel Exhaust Fluid Tank

379 l

Cooling System

799 l

Crankcase

310 l

Final Drive - Each

254 l

Hydraulic System - Including Tank

1458 l

Hydraulic Tank

1121 l

Fuel Tank

7571 l

Cooling System

1032 l

Crankcase

471 l

Hydraulic Tank

1032 l

Tires

Rims

44" x 63" Rims

Standard Tires

59/80 R63

Braking System

Service Brakes

Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated

Front Wet Disc Brake Surface Area

146081 cm²

Rear - Wet Disc Brake Surface Area

211163 cm²

Electric Retarding

Radial Grid Design

Dynamic Retarding Power - Continuous

4086 kW

Load Brake

Rear service brakes

Brakes

Standards

Service and Secondary: ISO 3450:2011

Undercarriage

Parking Brakes

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

Capacity - Dual Slope - 100% Fill Factor

Struck

129-200 m³ (168-261 yd³)

Capacity - MSD II - 100% Fill Factor

Heaped (SAE 2:1)

218-276 m³ (285-361 yd³)

Ripper

Type

Twin, two-stage hydraulic cylinders with snubbing valve.

Type

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

Body Hoists

Pump Flow - High Idle

964 L/min

Relief Valve Setting - Raise

20884 kPa

Body Raise Time - High Idle

21 s

Body Lower Time - Float

22 s

Body Power Down- High Idle

17.5 s

Suspension

Effective Cylinder Stroke - Front

254 mm

Effective Cylinder Stroke - Rear

133.35 mm

Service Refill Capacities - High Altitude Only

Hydraulic System (includes tank)

1296 l

Air Conditioning System

Air Conditioning

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

Cab

Heater / Defroster

24600 Btu/h

ROPS Standards (1)

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

ROPS

FOPS Standards

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

Sound

Sound Standards

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

Steering

Steer Angle

39 °

Turning Diameter - Front

32.4 m

Steering Standards

ISO 5010:2019

Dimensions

Height - Top of ROPS

6720 mm

Centerline of Rear Dual Tire Width

5943 mm

Dimension

Overall Length

15679 mm

Loading Height - Empty

7784 mm

Overall Height - Body Raised

14890 mm

Centerline Front Tire Width

7028 mm

Inside Body Width

8973 mm

Dimensions (Approximate) - Dual Slope

Rear Axle - Tail

4898 mm

Dimensions (Approximate)

Dump Clearance - Empty

1744 mm

Front Axle Clearance - Loaded

855 mm

Overall Canopy Width (with rock deflectors)

10103 mm

Outside Body/Canopy Width (without rock deflectors)

9639 mm

Front Canopy Height - Empty

7928 mm

Rear Axle Clearance - Loaded

854 mm

Overall Tire Width - Empty

9226 mm

Overall Length (High Altitude only)

15810 mm

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