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794 AC Mining Truck

  • OVERVIEW
  • SPECIFICATIONS
  • STANDARD / OPTIONAL
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)
  • Engine
  • Engine Model - Cat® C175-16
  • Gross Power - SAE J1995 - 3500 HP
  • Bore - 6.9 in
  • Stroke - 8.7 in
  • Displacement - 5187 in³
  • Operating Specifications
  • Steer Angle - 39 °
  • Final Drives
  • Total Reduction Ratio - 35 to 1
  • AC Drive System
  • 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 Hoists
  • 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) - 221 gal/min
  • Pump Flow - High Idle (LAA at 1,960 rpm) - 240 gal/min
  • Relief Valve Setting - Raise - 3029 psi
  • Total Cycle Time - 44 s
  • Braking System
  • Dynamic Retarding Power - Continuous - 5480 HP
  • Electric Retarding - Radial Grid Design
  • Front Wet Disc Brake Surface Area - 20378 in²
  • Rear - Wet Disc Brake Surface Area - 30750 in²
  • Standards - ISO 3450:2011
  • Capacity - HE Body - 100% fill factor
  • Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate - 0.2 in
  • Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate - 0.63 in
  • Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate - 0.35 in
  • Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate - 0.31 in
  • 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)
  • Dimensions (Approximate)
  • Canopy Width (without optional rock deflectors) - 29.75 ft
  • Centerline Front Tire Width - 23 ft
  • Centerline of Rear Dual Tire Width - 18.75 ft
  • Dump Clearance - 3 ft
  • Front Axle Clearance - 3.17 ft
  • Front Canopy Height - 26.33 ft
  • Ground Clearance - 2.67 ft
  • Height - Top of ROPS - 22.25 ft
  • Inside Body Width - 28.08 ft
  • Loading Height - Empty - 22.92 ft
  • Note - Dimensions based on 193.6 m³ (253 yd³) HE Body.
  • Outside Body Width - 29.75 ft
  • Overall Height - Body Raised - 48.42 ft
  • Overall Length - 50.75 ft
  • Overall Tire Width - 28.67 ft
  • Rear Axle - Clearance - 3.08 ft
  • Rear Axle - Tail - 15.5 ft
  • Wheel Base - 21.83 ft
  • Engine
  • 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
  • Operating Specifications
  • Gross Machine Operating Weight (GMW) - 1150000 lb
  • Minimum Turning Radius - 53 ft
  • 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
  • ROPS
  • 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)
  • Crankcase - 82 gal (US)
  • Final Drive - Each - 67 gal (US)
  • Fuel Tank - 1300 gal (US)
  • Hydraulic System - Including Tank - 385 gal (US)
  • Hydraulic Tank - 296 gal (US)
  • Sound
  • 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.
  • Steering
  • Note - Gross Machine Operating Weight is 521 631 kg (1,150,000 lb).
  • Tires
  • 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 %
  • Front Axle - Loaded - 33 %
  • Rear Axle - Empty - 51 %
  • Rear Axle - Loaded - 67 %
  • Weights - Approximate
  • Body Weight - 62140 lb
  • Chassis Weight - 417187 lb
  • Gross Machine Operating Weight - 1150000 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.
  • Steering
  • Steering Standards - ISO 5010:2007
  • Tires
  • Standard Tires - 53/80 R63.
  • Standard Equipment
  • POWER TRAIN
  • ELECTRICAL
  • OPERATOR ENVIRONMENT
  • FLUIDS
  • OTHER STANDARD EQUIPMENT
  • Optional Equipment
  • OPTIONAL EQUIPMENT