Category : Off-Highway Trucks ➔ Manufacturer : Caterpillar ➔ Model : 785C ➔
The Caterpillar 785C is a rigid-frame off-highway haul truck designed for large-scale mining and heavy earthmoving applications. It is part of Caterpillar's 785 series and is used to transport high volumes of overburden, ore, and aggregate in demanding site conditions. The 785C features a high-capacity dump body, diesel powertrain, and heavy-duty suspension for operation on rough haul roads. Common specifications include a large payload rating, articulated service access, and operator cab designed for visibility and control. The model is widely recognized in quarry, mining, and construction fleets for material transport in continuous production environments.
Approximate Weights - Dual Slope
Caterpillar 785C Off-Highway Truck Approximate Weights - Dual Slope specifications
Body
46,865.00 lbs (21,257.63 kg)
Chassis
164,134.00 lbs (74,450.02 kg)
Front Axle - Empty
47 %
Front Axle - Loaded
33 %
Gross Weight - Empty
211,035.00 lbs (95,723.98 kg)
Rear Axle - Empty
53 %
Rear Axle - Loaded
67 %
Approximate Weights - Flat Floor
Caterpillar 785C Off-Highway Truck Approximate Weights - Flat Floor specifications
Body
56,630.00 lbs (25,686.97 kg)
Chassis
164,134.00 lbs (74,450.02 kg)
Front Axle - Empty
47 %
Front Axle - Loaded
33 %
Gross Weight - Empty
225,200.00 lbs (102,149.13 kg)
Rear Axle - Empty
53 %
Rear Axle - Loaded
67 %
Standard Liner
4,400.00 lbs (1,995.81 kg)
Body Hoists
Caterpillar 785C Off-Highway Truck Body Hoists specifications
Body Lower Time - Float
16.2 s
Body Lower Time - High Idle
15.9 s
Body Power Down - High Idle
15.9 s
Body Raise Time - High Idle
15.2 s
Pump Flow - High Idle
198.00 gpm (749.43 lpm)
Relief Valve Setting - Raise
2500 psi
Brakes
Caterpillar 785C Off-Highway Truck Brakes specifications
Brake Surface - Front
9497 in2
Brake Surface - Rear
13908 in2
Standards
SAE J1473 OCT90 ISO 3450-1985
Capacity - Dual Slope - 100% Fill Factor
Caterpillar 785C Off-Highway Truck Capacity - Dual Slope - 100% Fill Factor specifications
Heaped (Sae 2:1)
102 cu yd
Struck
74 cu yd
Capacity - Flat Floor - 100% Fill Factor
Caterpillar 785C Off-Highway Truck Capacity - Flat Floor - 100% Fill Factor specifications
Heaped (Sae 2:1)
119 cu yd
Struck
96 cu yd
Dimensions
Caterpillar 785C Off-Highway Truck Dimensions specifications
Dump Ground Clearance
4.21 ft (1.28 m)
Dump Height
36.83 ft (11.23 m)
Ground Clearance
3.24 ft (0.99 m)
Overall Height
19.00 ft (5.79 m)
Overall Length
36.25 ft (11.05 m)
Overall Width
20.60 ft (6.28 m)
Wheelbase
17.00 ft (5.18 m)
Dump
Caterpillar 785C Off-Highway Truck Dump specifications
Dump Angle
49 degrees
Load Capacity - Heaped
119 cu yd
Load Capacity - Struck
96 cu yd
Lower Time
15.9 sec
Raise Time
15.2 sec
Rated Payload
300,000.00 lbs (136,077.88 kg)
Engine
Caterpillar 785C Off-Highway Truck Engine specifications
Aspiration
Turbocharged
Bore
6.70 in (17.02 cm)
Displacement
3,158.00 cu in (51,750.46 cu cm)
Engine Make
2236
Engine Model
3512B-EUI
Gross Power
1,451.00 hp (1,082.03 kw)
Gross Power - Sae J1995
1,450.00 hp (1,081.28 kw)
Net Power
1,348.00 hp (1,005.22 kw)
Net Power - 80/1269/Eec
1,348.00 hp (1,005.22 kw)
Net Power - Cat
1,348.00 hp (1,005.22 kw)
Net Power - Iso 9249
1,348.00 hp (1,005.22 kw)
Net Power - Sae J1349
1,348.00 hp (1,005.22 kw)
Number Of Cylinders
16
Power Measured @
1750 rpm
Stroke
7.50 in (19.05 cm)
Torque Rise
23 %
Final Drives
Caterpillar 785C Off-Highway Truck Final Drives specifications
Differential Ratio
2.10:1
Planetary Ratio
10.83:1
Total Reduction Ratio
22.75:1
Operating Specifications
Caterpillar 785C Off-Highway Truck Operating Specifications specifications
Lower Time
15.9 s
Machine Clearance Turning Diameter
100.40 ft (30.60 m)
Nominal Payload Capacity
300,000.00 lbs (136,077.88 kg)
Raise Time
15.2 s
Sae (2:1) Capacity
102 cu yd
Steer Angle
36 degrees
Top Speed - Loaded
34.00 mph (54.72 kph)
Turning Diameter - Front
90.20 ft (27.49 m)
Operational
Caterpillar 785C Off-Highway Truck Operational specifications
Alternator Supplied Amperage
75 amps
Brake/Hoist System Fluid Capacity
89.00 gal (336.87 l)
Cooling System Fluid Capacity
100.00 gal (378.50 l)
Diff And Final Drive Fluid Capacity
115.00 gal (435.28 l)
Engine Oil Capacity
24.00 gal (90.84 l)
Fuel Capacity
500.00 gal (1,892.50 l)
Hydraulic System Fluid Capacity
169.40 gal (641.18 l)
Operating Voltage
24 V
Steering System Fluid Capacity
31.00 gal (117.34 l)
Tire Size
33.00-R51 tires
Rops
Caterpillar 785C Off-Highway Truck Rops specifications
Rops Standards
SAE J1040 APR88 ISO 3471:1994
Service Refill Capacities
Caterpillar 785C Off-Highway Truck Service Refill Capacities specifications
Brake Hoist System - Includes Tank
169.00 gal (639.67 l)
Brake/Hoist Hydraulic Tank
89.00 gal (336.87 l)
Cooling System
100.00 gal (378.50 l)
Crankcase
54.00 gal (204.39 l)
Differential - Final Drives
115.00 gal (435.28 l)
Fuel Tank - Standard
500.00 gal (1,892.50 l)
Steering System - Including Tank
31.00 gal (117.34 l)
Steering Tank
24.00 gal (90.84 l)
Torque Converter/Transmission System - Including Sump
65.60 gal (248.30 l)
Sound
Caterpillar 785C Off-Highway Truck Sound specifications
Sound Standards
ANSI/SAE J1166 MAY90 SAE J88 APR95
Steering
Caterpillar 785C Off-Highway Truck Steering specifications
Steering Standards
SAE J1511 OCT90 ISO 5010:1992
Suspension
Caterpillar 785C Off-Highway Truck Suspension specifications
Effective Cylinder Stroke - Front
12.10 in (30.73 cm)
Effective Cylinder Stroke - Rear
6.50 in (16.51 cm)
Tires
Caterpillar 785C Off-Highway Truck Tires specifications
Standard Tires
33.00-R51 (E4) 33.00-R51 (E3)
Transmission
Caterpillar 785C Off-Highway Truck Transmission specifications
Forward - 1
7.50 mph (12.07 kph)
Forward - 2
10.20 mph (16.42 kph)
Forward - 3
13.80 mph (22.21 kph)
Forward - 4
18.60 mph (29.93 kph)
Forward - 5
25.20 mph (40.56 kph)
Forward - 6
34.00 mph (54.72 kph)
Max Speed
34.00 mph (54.72 kph)
Number Of Gears - Forward
6
Number Of Gears - Reverse
1
Reverse
6.8 mile/h
Transmission Type
Six-speed planetary
Weight Distributions - Approximate
Caterpillar 785C Off-Highway Truck Weight Distributions - Approximate specifications
Front Axle - Empty
47 %
Front Axle - Loaded
33 %
Rear Axle - Empty
53 %
Rear Axle - Loaded
67 %
Weights
Caterpillar 785C Off-Highway Truck Weights specifications
Empty Weight
225,200.00 lbs (102,149.13 kg)
Loaded Weight
550,000.00 lbs (249,476.11 kg)
Weight Distribution Front - Empty
47 %
Weight Distribution Front - Loaded
33 %
Weight Distribution Rear - Empty
53 %
Weight Distribution Rear - Loaded
67 %
Weights - Approximate
Caterpillar 785C Off-Highway Truck Weights - Approximate specifications
Chassis Weight
164,134.00 lbs (74,450.02 kg)
Gross Machine Operating Weight
550,000.00 lbs (249,476.11 kg)
Operating Weight - Empty - Dual-Slope Body
211,035.00 lbs (95,723.98 kg)
Operating Weight - Empty - Flat Floor Body
225,200.00 lbs (102,149.13 kg)
