Off-Highway Trucks

Cat 773

Payload
56.5t
Body Capacity
35.75m³
Loaded Speed
66.9km/hr

G Series represents a new era for the 773, and with your long-term success as our goal, we've developed this truck to be more productive and economical. It offers your operators the confidence, comfort and control to run at peak efficiency, and it can feed your crushers and haul material at a lower cost per ton. When you also consider its performance and fuel efficiency, the 773G is the right truck for our generation.

Specifications

Payload
56.5t
Body Capacity
35.75m³
Loaded Speed
66.9km/hr
Operating Weight
102,740kg
Power
578kW (785.8hp)
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Specifications

Engine
Bore 137mm Displacement 27l Engine Model Cat® C27 Engine Power - ISO 14396 570kW Gross Power - SAE J1995 578kW Net Power - 80/1269/EEC 568kW Net Power - ISO 9249 568kW Net Power - SAE J1349 536kW Net Torque 4269N·m Note (1) Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) 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) No engine derating required up to 3048 m (10,000 ft) for Tier 4/Stage V. Peak Torque - Speed 1200r/min Rated Engine Speed 1800r/min Stroke 152mm
Weights - Approximate
Maximum Gross Vehicle Weight 102739kg
Operating Specifications
Body Capacity - SAE 2:1 35.8m³ Maximum Allowable Payload (120%)* 66.4t Maximum Working Payload (110%) 60.8t Nominal Payload Class (100%) 55.3t Note (1) Capacity with Dual Slope body – no liner. Note (2) * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. Target Payload (100%) 55.3t Top Speed - Loaded 66.9km/h
Transmission
Forward - 1 10.6km/h Forward - 2 15km/h Forward - 3 20.3km/h Forward - 4 27km/h Forward - 5 36.7km/h Forward - 6 49.4km/h Forward - 7 66.9km/h Note Maximum travel speeds with standard 24.00R35 (E4) tires. Reverse 14km/h
Final Drives
Differential Ratio 3.64:1 Planetary Ratio 4.80:1 Total Reduction Ratio 17.49:1
Brakes
Brake Standards ISO 3450:2011 Brake Surface - Front 655cm² Brake Surface - Rear 61269cm²
Body Hoists
Body Lower Time - Float 14s Body Power Down - High Idle 14s Body Raise Time - High Idle 10s Pump Flow - High Idle 448l/min Relief Valve Setting - Lower 3450kPa Relief Valve Setting - Raise 17250kPa
Capacity - Dual Slope - 100% Fill Factor
Heaped (SAE 2:1)* 35.75m³ Note (1) Contact your local Cat dealer for body recommendation. Note (2) * ISO 6483:1980. Struck 26.86m³
Capacity - Flat Floor - 100% Fill Factor
Heaped (SAE 2:1)* 35.49m³ Note (1) Contact your local Cat dealer for body recommendation. Note (2) * ISO 6483:1980. Struck 26.25m³
Weight Distributions - Approximate
Front Axle - Empty 53% Front Axle - Loaded 35% Rear Axle - Empty 47% Rear Axle - Loaded 65%
Suspension
Empty Loaded Cylinder Stroke Front 234mm Empty Loaded Cylinder Stroke Rear 149mm Rear axle - Oscillation 8.1°
Service Refill Capacities
Brake/Hoist Hydraulic Tank 176l Brake Hoist System 322l Cooling System 171l Crankcase 90l Differential - Final Drives 145l Fuel Tank 795l Steering System - Including Tank 54l Steering Tank 36l Torque Converter - Transmission System - HRC 70l
Tires
Note (1) Productive capabilities of the 773G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. Note (2) Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. Standard Tire 24.00R35 (E4)
ROPS
FOPS Standards Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
Sound
Sound Standards (1) The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed. Sound Standards (2) The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 86 dB(A). Sound Standards (3) 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
Steer Angle 31° Steering Standards SAE J1511 FEB94 ISO 5010:1992 Turning Circle - Clearance Diameter 26.1m Turning Diameter - Front 23.5m

How does the 773 Compare?

  • Cat 773
    Off-Highway Trucks Cat 773
    Payload
    56.5t
    Body Capacity
    35.75m³
    Loaded Speed
    66.9km/hr
    SELECTED MODEL

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  • Cat 772G
    Off-Highway Trucks Cat 772G
    Payload
    47.2t
    Body Capacity
    31.2m³
    Loaded Speed
    79.7km/hr

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  • Cat 775G
    Off-Highway Trucks Cat 775G
    Payload
    64t
    Body Capacity
    42.23m³
    Loaded Speed
    66.9km/hr

    Add to favourites Remove from favourites {D2066F66-E4D4-4A69-BB07-164286DAB7BC}

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