- Overall Length: 47.67 ft / 14529.82 mm
- Overall Width: 30.02 ft / 9150 mm
- Overall Height: 23.76 ft / 7240 mm
- Wheelbase: 23.63 ft / 7200 mm
Published dimensions and weight
Caterpillar 797
The Caterpillar 797 is a rock truck of about 231.3 t, built around the 3524A engine.
01Published dimensions and weight
Dimensions reference
Representative category illustration; exact model may differ.Measurement reference — not to scale

01Dimensions referenceLength × width × height
02WeightNot publishedNot published
03Selected published values89
Rigid rock trucks are commonly used to haul rock and bulk material on mines, quarries and large earthmoving sites. Published rows for Caterpillar 797 include published payload of 760000 lb / 344730.23 kg, published engine power of 3400 hp / 2535.4 kw, published maximum speed of 39.8 mph / 64 km/h. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (47.67 ft / 14529.82 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Width” field (30.02 ft / 9150 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Height” field (23.76 ft / 7240 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length47.67 ft14529.82 mm
Overall Width30.02 ft9150 mm
Overall Height23.76 ft7240 mm
Wheelbase23.63 ft7200 mm
Dump Height49.22 ft15000 mm
Height - Top Of Rops21.39 ft6.52 m
Inside Body Depth - Maximum10.98 ft3.35 m
Inside Body Length32.29 ft9.85 m
Inside Body Width26.25 ft8.01 m
Operating Width30.03 ft9153.15 mm
Outside Body Width27.97 ft8.53 m
Overall Body Length47.67 ft14.53 m
Overall Height - Body Raised49.18 ft15 m
Loading Height - Empty23.12 ft7.05 m
Centerline Front Tire Width21.65 ft6.6 m
Centerline Of Rear Dual Tire Width19.91 ft6.07 m
Dump Clearance6.13 ft1.87 m
Engine Guard Clearance3.75 ft1.15 m
Rear Axle - Clearance2.58 ft0.79 m
Rear Axle - Tail13.18 ft4.02 m
Wheel Base23.62 ft7.2 m
Overall Tire Width30.03 ft9.16 m
Dump
Rated Payload760000 lb344730.23 kg
Load Capacity - Heaped287.75 yd3220 m3
Load Capacity - Struck226.28 yd3173 m3
Engine
Engine Make22362236
Engine Model3524A3524A
Gross Power3400 hp2535.4 kw
Net Power3211 hp2394.5 kw
Displacement7139.8 cu in117.1 L
Net Power - Cat3211 hp2394.5 kw
Net Power - Iso 92493211 hp2394.5 kw
Net Power - Sae J13493178 hp2369.9 kw
Net Power - 80/1269/Eec3211 hp2394.5 kw
Gross Power - Sae J19953400 hp2535.4 kw
Operational
Fuel Capacity1799.9 gal6813 L
Tire Size55/80R6355/80R63
Transmission
Max Speed39.8 mph64 km/h
Reverse7.6 mile/h7.6 mile/h
Forward - 16.7 mph10.8 km/h
Forward - 29 mph14.5 km/h
Forward - 312.1 mph19.5 km/h
Forward - 416.3 mph26.3 km/h
Forward - 522 mph35.5 km/h
Forward - 629.7 mph47.8 km/h
Forward - 739.9 mph64.3 km/h
Steering
Steering StandardsMeets SAE J1511 OCT90 and ISO 5010-1984 standardsMeets SAE J1511 OCT90 and ISO 5010-1984 standards
Weights
Empty Weight1225748.3 lb555990 kg
Loaded Weight719875.5 lb326530 kg
Weight Distribution Front - Empty43.5 %43.5 %
Weight Distribution Rear - Empty46.5 %46.5 %
Weight Distribution Front - Loaded33 %33 %
Weight Distribution Rear - Loaded67 %67 %
Tires
Standard Tires55/80R63 tires55/80R63 tires
Brakes
StandardsMeet J-ISO 3450 JAN88 and ISO 3450-1996 standardsMeet J-ISO 3450 JAN88 and ISO 3450-1996 standards
Body Hoists
Pump Flow - High Idle323 gal/min323 gal/min
Relief Valve Setting - Raise3450.01 psi3450.01 psi
Body Raise Time - High Idle25 s25 s
Body Lower Time - Float18.5 s18.5 s
Body Power Down - High Idle17.3 s17.3 s
Final Drives
Planetary Ratio16.67:116.67:1
Differential Ratio1.265:11.265:1
Total Reduction Ratio21.09:121.09:1
Operating Specifications
Top Speed - Loaded40 mph64.4 km/h
Raise Time24 s24 s
Lower Time17.3 s17.3 s
Minimum Payload Capacity642680 lb291514.6 kg
Maximum Payload Capacity720000 lb326586.3 kg
Maximum Capacity Struck (Sae)228 yd3174.4 m3
Service Refill Capacities
Cooling System315 gal1192.5 L
Steering Tank62 gal234.7 L
Steering System - Including Tank114 gal431.6 L
Crankcase110 gal416.4 L
Brake/Hoist Hydraulic Tank263 gal995.6 L
Torque Converter/Transmission System - Including Sump166 gal628.4 L
Fuel Tank - Standard1000 gal3785.5 L
Weight Distributions - Approximate
Front Axle - Empty43.5 %43.5 %
Rear Axle - Empty56.5 %56.5 %
Weights - Approximate
Operating Weight - Empty510000 lb231332.2 kg
Operating Weight - Loaded1230000 lb557918.7 kg
Chassis Weight459462.7 lb208408.8 kg
Gross Machine Operating Weight (Gmw)1314000 lb596020.5 kg
Rops
Rops StandardsMeets SAE J1040 APR88, SAE J231 JAN81, ISO 3471-1994 and ISO 3449-1992 LEVEL IIMeets SAE J1040 APR88, SAE J231 JAN81, ISO 3471-1994 and ISO 3449-1992 LEVEL II
Sound
Sound StandardsMeets OSHA and MSHA occupational noise exposure criteriaMeets OSHA and MSHA occupational noise exposure criteria
Approximate Weights - Flat Floor
Chassis458500 lb207972.2 kg
Front Axle - Empty43.5 %43.5 %
Front Axle - Loaded33.3 %33.3 %
Rear Axle - Empty56.5 %56.5 %
Rear Axle - Loaded66.7 %66.7 %
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Manufacturer-published specifications.