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798 AC Electric Drive Mining Truck

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Product Description

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. By hauling more every load, every cycle and every shift, it creates a low-cost-per-ton hauling operation that delivers a better bottom line.

Specifications
Us
Metric
Engine
Gross Power - SAE J1995
3500 hp
2610 kW
Engine Model
Cat® C175-16
Net Power - SAE J1349
3405 hp
2539 kW
Optional Gross Power - SAE J1995
3100 hp
2312 kW
Rated Speed
1800 r/min
1800 r/min
Emissions Rating
Fuel Optimized
Bore
6.9 in
175 mm
Stroke
8.7 in
220 mm
Displacement
5187 in³
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 - High Altitude Only
Engine Model
Cat® C175-20
Gross Power SAE J1995:2014
4150 hp
3095 kW
Net Power - SAE J1349:2011
4000 hp
2983 kW
Rated Speed
1750 r/min
1750 r/min
Emissions Rating
Fuel Optimized
Bore
6.9 in
175 mm
Stroke
8.7 in
220 mm
Displacement
6469 in³
106 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
Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp
Weights - Approximate
Rated Gross Machine Weight
1375000 lb
623690 kg
Chassis Weight
453826 lb
205852 kg
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)
372 t
Weight Distributions - Approximate
Front Axle - Empty
47 %
47 %
Rear Axle - Empty
53 %
53 %
Front Axle - Loaded
33 %
33 %
Rear Axle - Loaded
67 %
67 %
Note
Weight distributions optimized with Cat body.
AC Drive System
Total Reduction Ratio
35:01:00
Top Speed - Loaded
40 mile/h
64 km/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
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.
Braking System
Service Brakes
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area
22642 in²
146081 cm²
Rear - Wet Disc Brake Surface Area
32730 in²
211163 cm²
Standards
Service and Secondary: ISO 3450:2011
Electric Retarding
Radial Grid Design
Dynamic Retarding Power - Continuous
5480 hp
4086 kW
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
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.
Body Hoists
Type
Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle
257.3 gpm
964 L/min
Relief Valve Setting - Raise
3029 psi
20884 kPa
Body Raise Time - High Idle
21 s
21 s
Body Lower Time - Float
22 s
22 s
Body Power Down- High Idle
17.5 s
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.
Suspension
Type
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front
10 in
254 mm
Effective Cylinder Stroke - Rear
5 in
133.35 mm
Service Refill Capacities
Fuel Tank
1300 gal (US)
4922 l
Fuel Tank (Tier 4)
1200 gal (US)
4542 l
Diesel Exhaust Fluid Tank
100 gal (US)
379 l
Cooling System
211 gal (US)
799 l
Crankcase
82 gal (US)
310 l
Final Drive - Each
67 gal (US)
254 l
Hydraulic System - Including Tank
385 gal (US)
1458 l
Hydraulic Tank
296 gal (US)
1121 l
Grease Tank
90 lb
41 kg
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
2000 gal (US)
7571 l
Cooling System
273 gal (US)
1032 l
Crankcase
124 gal (US)
471 l
Hydraulic Tank
273 gal (US)
1032 l
Hydraulic System (includes tank)
342 gal (US)
1296 l
Cab
Air Conditioning
HFC - 134A refrigerant: 21,600 Btu/h
Heater / Defroster
24600 Btu/h
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
Sound Standards
The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008.
Steering
Steer Angle
39 °
39 °
Turning Diameter - Front
106.3 ft
32.4 m
Steering Standards
ISO 5010:2019
Note
Turning Diameter (ISO 7457:1997)
Dimensions (Approximate)
Height - Top of ROPS
22.1 ft
6720 mm
Overall Length
51.44 ft
15679 mm
Wheel Base
21.9 ft
6674 mm
Rear Axle - Tail
16.07 ft
4898 mm
Dump Clearance - Empty
5.72 ft
1744 mm
Loading Height - Empty
25.54 ft
7784 mm
Overall Height - Body Raised
48.85 ft
14890 mm
Centerline Front Tire Width
23.06 ft
7028 mm
Front Axle Clearance - Loaded
2.81 ft
855 mm
Overall Canopy Width (with rock deflectors)
33.15 ft
10103 mm
Outside Body/Canopy Width (without rock deflectors)
31.62 ft
9639 mm
Inside Body Width
29.44 ft
8973 mm
Front Canopy Height - Empty
26.01 ft
7928 mm
Rear Axle Clearance - Loaded
2.8 ft
854 mm
Centerline of Rear Dual Tire Width
19.5 ft
5943 mm
Overall Tire Width - Empty
30.27 ft
9226 mm
Overall Length (High Altitude only)
51.87 ft
15810 mm
Note
Dimensions listed includes canopy deflectors
Standard/Optional

Standard Equipment

POWER TRAIN
OPERATION AND CONTROLS
ELECTRICAL
ADDITIONAL FEATURES AND EQUIPMENT
CAT® TECHNOLOGY PRODUCTS
DUMP BODY
ANTIFREEZE

Optional Equipment

POWER TRAIN
OPERATION AND CONTROLS
OPERATIONS AND CONTROLS
ELECTRICAL
ADDITIONAL FEATURES AND EQUIPMENT
CAT® TECHNOLOGY PRODUCTS
DUMP BODY
ANTIFREEZE
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