794 AC Mining Truck

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Product Description

Designed and manufactured by Caterpillar, the 794 AC electric drive truck is single sourced from one manufacturer and supported by the best dealer network. The 794 AC is designed to:

  • Deliver a true 291 tonnes (320 tons) capacity
  • Deliver reliability and uptime
  • Deliver easy serviceability
  • Deliver low owning and operating cost
  • Deliver operator confidence with four corner wet disc blended service brakes and traction control
The 794 AC is built to deliver to your bottom line.

Operating Specifications
Nominal Payload Capacity
320 ton (US)
291 t
Engine Model
Cat® C175-16
Gross Power - SAE J1995
3500 HP
2610 kW
6.9 in
175 mm
8.7 in
220 mm
5187 in³
85 l
Operating Specifications
Steer Angle
39 °
39 °
Final Drives
Total Reduction Ratio
35 to 1
AC Drive System
IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Cooling System
Variable speed, hydraulically driven cooling system
Brushless, engine mounted, dual bearing
Wheel Motor
Cat AC induction, rear axle mounted
Braking System
Dynamic Retarding Power - Continuous
5480 HP
4086 kW
Electric Retarding
Radial Grid Design
Front Wet Disc Brake Surface Area
20378 in²
131473 cm²
Rear - Wet Disc Brake Surface Area
30750 in²
198388 cm²
ISO 3450:2011
Capacity - HE Body - 100% fill factor
Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate
0.2 in
5 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate
0.63 in
16 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate
0.35 in
9 mm
Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate
0.31 in
8 mm
Heaped (SAE 2:1)
180-222 m³ (236-290 yd³)
Contact your local Cat dealer for body recommendations.
108-133 m³ (142-175 yd³)
Dimensions (Approximate)
Canopy Width (without optional rock deflectors)
29.75 ft
9068 mm
Centerline Front Tire Width
23 ft
7024 mm
Centerline of Rear Dual Tire Width
18.75 ft
5727 mm
Dump Clearance
3 ft
1555 mm
Front Axle Clearance
3.17 ft
969 mm
Front Canopy Height
26.33 ft
8024 mm
Ground Clearance
2.67 ft
906 mm
Height - Top of ROPS
22.25 ft
6779 mm
Inside Body Width
28.08 ft
8560 mm
Loading Height - Empty
22.92 ft
6995 mm
Dimensions based on 193.6 m³ (253 yd³) HE Body.
Outside Body Width
29.75 ft
9062 mm
Overall Height - Body Raised
48.42 ft
14747 mm
Overall Length
50.75 ft
15463.5 mm
Overall Tire Width
28.67 ft
8738 mm
Rear Axle - Clearance
3.08 ft
934 mm
Rear Axle - Tail
15.5 ft
4716 mm
Wheel Base
21.83 ft
6644.5 mm
Note (1)
Power ratings apply at 1,800 rpm when tested under the specified conditions for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 99 kPa (29.61 Hg) dry barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18.390 BTU/lb) when engine used at 30° C (86° F).
Note (3)
Optional 2,750 hp and 3,100 hp ratings. Optional emission ratings. Contact factory for available offerings.
Note (4)
High altitude configurations available for altitudes up to 4267 m (14,000 ft) without derate.
Standard Gross Power - SAE J1995
3500 HP
2610 kW
Operating Specifications
Gross Machine Operating Weight (GMW)
1150000 lb
521631 kg
Minimum Turning Radius
53 ft
16.2 m
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.
Top Speed - Loaded
37 mile/h
60 km/h
FOPS Standards
FOPS (Falling Object Protective Structure) meets ISO 3449:1992.
ROPS Standards
ROPS (Rollover Protective Structure) meets ISO 3471:1994.
Service Refill Capacities
Cooling System
211 gal (US)
799 l
82 gal (US)
310 l
Final Drive - Each
67 gal (US)
254 l
Fuel Tank
1300 gal (US)
4922 l
Hydraulic System - Including Tank
385 gal (US)
1458 l
Hydraulic Tank
296 gal (US)
1121 l
Sound Standards (1)
The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 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.
Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
Note (1)
Production capabilities of the 794 AC truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection.
Weight Distributions - Approximate
Front Axle - Empty
49 %
49 %
Front Axle - Loaded
33 %
33 %
Rear Axle - Empty
51 %
51 %
Rear Axle - Loaded
67 %
67 %
Weights - Approximate
Body Weight
62140 lb
28186 kg
Chassis Weight
417187 lb
189233 kg
Gross Machine Operating Weight
1150000 lb
521631 kg
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.
Steering Standards
ISO 5010:2007
Standard Tires
53/80 R63.

Standard Equipment


Optional Equipment


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