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Mining Trucks

798 AC Electric Drive Mining Truck

Gross Power - SAE J1995 3500 HP
Engine Model Cat® C175-16
Standard Gross Power - SAE J1995 3500 HP
Optional Gross Power - SAE J1995 3100 HP

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.

Engine

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

Weights - Approximate

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

Operating Specifications

Top Speed - Loaded
40mile/h
Steer Angle
39°
Minimum Turning Radius
53ft
Note (1)
Payload assumes no debris, no extra options or attachments.
Note (2)
Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.

Final Drives

Total Reduction Ratio
35:1

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
Cooling System
Cat variable speed, hydraulically driven cooling system
Total Reduction Ratio
35:1
Top Speed - Loaded
40mile/h

Tires

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.
Rims
44" x 63" Rims

Body Hoists

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

Braking System

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

Weight Distributions - Approximate

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

Capacity - HE Body - 100% fill factor

Struck
129-200 m³ (168-261 yd³)
Heaped (SAE 2:1)
218-276 m³ (285-361 yd³)
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate
1in
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate
0.5in
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate
0.38in
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate
0.2in
Note
Contact your local Cat dealer for body recommendations.

Service Refill Capacities

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

ROPS

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

Sound

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.
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.

Steering

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

Dimensions (Approximate)

Height - Top of ROPS
22.1ft
Overall Length
51.44ft
Wheel Base
21.9ft
Rear Axle - Tail
16.07ft
Ground Clearance
3.37ft
Dump Clearance
5.72ft
Loading Height - Empty
25.54ft
Overall Height - Body Raised
48.85ft
Centerline Front Tire Width
23.06ft
Front Axle Clearance
2.81ft
Canopy Width (without optional rock deflectors)
31.62ft
Outside Body Width
31.62ft
Inside Body Width
29.44ft
Front Canopy Height
26.01ft
Rear Axle - Clearance
2.8ft
Centerline of Rear Dual Tire Width
19.5ft
Overall Tire Width
30.27ft
Dump Clearance - Empty
5.72ft
Front Axle Clearance - Loaded
2.81ft
Overall Canopy Width (with rock deflectors)
33.15ft
Outside Body/Canopy Width (without rock deflectors)
31.62ft
Front Canopy Height - Empty
26.01ft
Rear Axle Clearance - Loaded
2.8ft
Overall Tire Width - Empty
30.27ft
Note
Dimensions listed includes canopy deflectors

Cab

Air Conditioning
HFC - 134A refrigerant: 21,600 Btu/h
Heater / Defroster
24600Btu/h
Note
Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning.
ROPS Standards (1)
The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008.
ROPS Standards (2)
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.

Suspension

Type
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front
4in
Effective Cylinder Stroke - Rear
2in
Rear axle - Oscillation
+/- 5.32 degrees

Standard Equipment:

  • Power Train
    • Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) Fuel Optimized , U.S. EPA Tier 2 equivalent (available for applicable markets)
    • Cat® C175-16 Diesel Engine: 2610 kW (3,500 hp) U.S. EPA Tier 4 Final / EU Stage V (available for applicable markets)
    • C175-16 Diesel Engine
      – Turbocharging (4) / Aftercooled (ATAAC)
      – Centrifugal oil filter
      – Self-cleaning oil filter
      – Charging Alternator (225 amp), brushless
      – Pre-lubrication/engine
      – Air cleaner with precleaner (4)
      – Multi-point oil pressure sensing
      – Exhaust - Muffler, Right Side Exit
    • Braking system:
      – Electric dynamic retarding with blended low speed
      – Oil-cooled, Multi-disc (front and rear) - Service, Parking, Secondary
      – Load Brake (rear axle only)
      – Extended Life Brake Disc Material
      – Automatic Retarder Control (ARC)
      – Brake Release Motor (towing)
    • Cat® AC Drivetrain:
      – AC generator
      – AC induction motors (high-torque)
      – IGBT motor control
      – Radial retarding grid with AC motor control
      – Programmable top speed
      – TorqueBoost technology
      – Traction control system
    • Directional Shift Management:
      – Body-up reverse neutralizer
      – Body-up shift inhibitor
      – Reverse shift inhibitor
      – Neutral coast inhibitor
      – Neutral start inhibitor
    • Additional Features:
      – Rear axle continuous lubrication and filtration
      – Rear axle continuous oil cooling
  • Operation And Controls
    • Integrated ROPS/FOPS cab, insulated/sound suppressed
    • Seat, operator, air suspension, adjustable, heated/cooled
    • Seat, trainer, air suspension, adjustable
    • Seatbelt, trainer, two point
    • Steering wheel, tilt, telescopic, horn
    • Horn, electric
    • Directional shift lever
    • Single Pedal Retarding & oil-cooled brake control
    • Automatic Retard Control (ARC) toggle switch
    • Load brake switch
    • Windshield with tinted/safety glass
    • Window, electric powered, operator/passenger
    • Windshield Wipers (2), intermittent control and washer
    • Visor (2)
    • Storage rear of seats
    • Cup holder (2)
    • Dome courtesy light
    • Entertainment radio ready with speakers and wiring harnesses
    • Converter, 12V
    • 12V DC power supply (1)
    • Mirrors, standard (Left-Flat, Right-Convex)
    • Fixed access ladder, left hand ground access
    • HVAC:
      – Pressurized, filtered environment
      – Air conditioner
      – Heater/defroster
    • Metric or English gauges:
      – Speedometer
      – Tachometer
      – Electric hour meter
      – Fuel level
      – DEF level (U.S. EPA Tier 4 Final / EU Stage V engines only)
      – Hydraulic oil temperature
      – Engine coolant temperature
    • Service & Information:
      – Diagnostic connection port
      – Electric engine control fault indicator
      – Alarm, Park brake / open operator door
      – Third party telematics port
      – VIMS message center advisor
  • Electrical
    • Audible Alarm, backup
    • Electrical system, 24V with fuses and breakers
    • Batteries, 12V (8) 90 amp hour
    • Ground level Battery charge receptacle
    • Lighting, signals/service:
      – Headlights (4 low beam, 4 high beam), LED
      – Backup and marker/hazard, LED
      – Directional signals (front and rear), LED
      – Front stair access/service deck, LED
      – Stop/tail lights, LED
      – Engine compartment, LED
      – Inverter energy warning lights, LED
    • Payload indicator, red/green
    • Payload, digital display
  • Additional Features And Equipment
    • Accumulators (Steering & Brake) – Australian and Canadian certified
    • Automatic lubrication system
    • Rotating component guards
    • Mud Flaps
    • Tow hooks and pins (front)
    • Tow pin (rear) (empty truck only)
    • 44 x 63 rims, six position (6)
    • Fueling:
      – 4922 L (1,300 gal) fuel tank (Fuel optimized engines only)
      – 4543 L (1,200 gal) fuel tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
      – 379 L (100 gallon) DEF tank (U.S. EPA Tier 4 Final / EU Stage V engines only)
      – Fuel filter with water separator
      – 210 GPM Fast fill fuel system (Left and Right)
    • Service:
      – Engine service platforms (2)
      – ANSI or ISO service instructions
      – SOS℠ sample points (hydraulic oil, engine coolant, engine oil)
      – Ground level machine lockout (battery)
      – Ground level engine shut-down
      – Drivetrain lockout
      – Engine start lockout
      – Auxiliary "buddy" dumping quick connect
      – Auxiliary steering quick connect (towing)
  • Cat® Technology Products
    • Cat® MineStar Detect (Radar and Camera) System
    • Cat® Product Link Elite (Cellular)
  • Dump Body
    • High Efficiency (HE) body, 218-276 m³ (285-361 yd³)
      – HE Body Mounting Group
      – Rock ejectors (chain)
  • Antifreeze
    • Cat Extended Life Coolant (ELC) protects to –35° C (–30° F)

Optional Equipment:

  • Power Train
    • Cat® C175-16 Diesel Engine: 2312 kW (3,100 hp) power setting (Fuel optimized / U.S. EPA Tier 2 equiv. engines only)
    • Cat® C175-16 Diesel Engine: 2050 kW (2,750 hp) power setting (Fuel optimized & U.S. EPA Tier 4 Final / EU Stage V engines)
    • Body heat exhaust
  • Operation And Controls
    • Throttle lock
    • Timer, engine shutdown
    • Heated mirrors (Left and Right)
    • Powered access ladder, left hand ground access
    • Language monitors: English, Spanish, Italian, Portuguese, Dutch, Norwegian, Swedish, Estonian, Latin, Lithuanian, Slovakian, Slovenian, Greek, Romanian, Russian, Polish, Czech, Hungarian, Icelandic, Finnish, Danish, Thai, Indonesian, Vietnam, Malaysian, Chinese
  • Electrical
    • Lighting, signals/service:
      – Fog lights, LED
      – Work lights, LED
      – Side profile lights, LED
      – Dump body marker/stop lights, LED
    • Retarding indicator light, multi-color, cab exterior
  • Additional Features And Equipment
    • Fueling: 300 GPM Fast fill fuel system (Left and Right)
    • Portable fire extinguisher
    • Front bumper single-point center tow
    • Wheel chocks (ANSI and ISO)
    • 44 x 63 rims, quick change (2 quick change, 4 standard)
    • Service:
      – Inverter platform (rear access)
      – Service Center, fast-fill
  • Cat® Technology Products
    • Cat® MineStar Detect (Camera Only) System
    • Cat® Product Link Elite (Satellite)
    • Cat® MineStar Health
    • Cat® MineStar Fleet
    • Cat® MineStar Terrain
    • Cat® MineStar Command-Ready
    • Cat® MineStar Command
    • Cat® Trolley Assist Attachment
  • Dump Body
    • HE rock box liner
    • HE canopy rock deflectors
    • HE rear tire rock deflectors
    • HE impact liner
  • Antifreeze
    • Antifreeze/coolant protects to –50° C (–58° F)