794 AC

794 AC

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.


Nominal Payload Capacity 291 t
Engine Model Cat® C175-16
Gross Power – SAE J1995 2610 kW
Bore 175 mm
Stroke 220 mm
Displacement 85 l
Steer Angle 39 °
Total Reduction Ratio 35 to 1
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Cooling System Variable speed, hydraulically driven cooling system
Generator/Alternator Brushless, engine mounted, dual bearing
Wheel Motor Cat AC induction, rear axle mounted
Body Raise Time – High Idle 24 s
High Idle Body Lower Time – Float 20 s
Note (1) Twin, two-stage hydraulic cylinders mounted inside main frame; double-acting cylinders in both stages.
Note (2) Power raise in both stages; power down in both stages possible.
Note (3) Automatic body-lower modulation reduces impact on frame.
Pump Flow – High Idle (HAA at 1,800 rpm) 840 l/min
Pump Flow – High Idle (LAA at 1,960 rpm) 910 l/min
Relief Valve Setting – Raise 20884 kPa
Total Cycle Time 44 s
Dynamic Retarding Power – Continuous 4086 kW
Electric Retarding Radial Grid Design
Front Wet Disc Brake Surface Area 131473 cm²
Rear – Wet Disc Brake Surface Area 198388 cm²
Standards ISO 3450:2011
Dump Body Plate Thickness Varies Depending on Body Selection – Canopy Plate 5 mm
Dump Body Plate Thickness Varies Depending on Body Selection – Floor Plate 16 mm
Dump Body Plate Thickness Varies Depending on Body Selection – Front Plate 9 mm
Dump Body Plate Thickness Varies Depending on Body Selection – Side Plate 8 mm
Heaped (SAE 2:1) 180-222 m³ (236-290 yd³)
Note Contact your local Cat dealer for body recommendations.
Struck 108-133 m³ (142-175 yd³)
Canopy Width (without optional rock deflectors) 9068 mm
Centerline Front Tire Width 7024 mm
Centerline of Rear Dual Tire Width 5727 mm
Dump Clearance 1555 mm
Front Axle Clearance 969 mm
Front Canopy Height 8024 mm
Ground Clearance 906 mm
Height – Top of ROPS 6779 mm
Inside Body Width 8560 mm
Loading Height – Empty 6995 mm
Note Dimensions based on 193.6 m³ (253 yd³) HE Body.
Outside Body Width 9062 mm
Overall Height – Body Raised 14747 mm
Overall Length 15463.5 mm
Overall Tire Width 8738 mm
Rear Axle – Clearance 934 mm
Rear Axle – Tail 4716 mm
Wheel Base 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 2610 kW
Gross Machine Operating Weight (GMW) 521631 kg
Minimum Turning Radius 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 60 km/h
FOPS Standards FOPS (Falling Object Protective Structure) meets ISO 3449:1992.
ROPS Standards ROPS (Rollover Protective Structure) meets ISO 3471:1994.
Cooling System 799 l
Crankcase 310 l
Final Drive – Each 254 l
Fuel Tank 4922 l
Hydraulic System – Including Tank 1458 l
Hydraulic Tank 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.
Note 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.
Front Axle – Empty 49 %
Front Axle – Loaded 33 %
Rear Axle – Empty 51 %
Rear Axle – Loaded 67 %
Body Weight 28186 kg
Chassis Weight 189233 kg
Gross Machine Operating Weight 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.


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