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Caterpillar · Hydraulic Excavator

Caterpillar 311C U Specs

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Overview
The Caterpillar 311C U is a hydraulic excavator listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 79 hp, operating weight of 26,411 lb, working depth of 18.34 ft, reach of 26.58 ft, capacity of 0.7 yd³ and travel speed of 3.5 mph. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Caterpillar 311C U against similar hydraulic excavator models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
26,411.40
lb
Gross Power
79.20
hp
Max Digging Depth
18.34
ft
Reference Bucket Capacity
0.70
yd3
Full Specifications
22 specs
Dimensions
Ground Clearance 1.50 ft / 0.46 m
Length of Track on Ground 8.57 ft / 2.61 m
Max Digging Depth 18.34 ft / 5.59 m
Max Loading Height 18.94 ft / 5.77 m
Max Reach Along Ground 26.58 ft / 8.10 m
Max Vertical Wall Digging Depth 16.21 ft / 4.94 m
Shipping Height Of Unit 9.09 ft / 2.77 m
Shipping Length Of Unit 22.68 ft / 6.91 m
Tail Swing Radius 5.75 ft / 1.75 m
Width To Outside Of Tracks 8.17 ft / 2.49 m
Engine
Displacement 259 cu in / 4.3 L
Engine Make 2236
Engine Model 3064T
Gross Power 79 hp / 59.1 kW
Hydraulic Pump Flow Capacity 57.10 gal/min / 216.1 L/min
Hydraulic System Relief Valve Pressure 4,975 psi / 343.0 bar
Number of Cylinders 4
Operating Weight 26,411 lb / 11,980 kg
Power Measured @ 1,800 rpm
Reference Bucket Capacity 0.70 yd³ / 0.54 m³
Undercarriage
Max Travel Speed 3.48 mph / 5.6 km/h
Shoe Size 19.69 in / 500 mm
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Frequently Asked Questions

What is the operating weight of the Caterpillar 311C U? +

The Caterpillar 311C U has an operating weight of 26,411 lb (11,980 kg). This places it in a class suited for hydraulic excavator applications where ground pressure and transport weight are key considerations.

How powerful is the Caterpillar 311C U engine? +

The Caterpillar 311C U produces 79 hp (59.1 kW) of engine power. This output is typical for its weight class and designed to handle demanding Hydraulic Excavator work cycles efficiently.

What is the maximum digging depth of the Caterpillar 311C U? +

The Caterpillar 311C U has a maximum digging depth of 18.34 ft (5.59 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Caterpillar 311C U? +

The Caterpillar 311C U has a maximum reach along the ground of 26.58 ft (8.10 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Caterpillar 311C U? +

The Caterpillar 311C U has a maximum travel speed of 3.5 mph (5.6 km/h), enabling efficient movement between work areas on the job site.

How does the Caterpillar 311C U compare to similar Hydraulic Excavator models? +

You can compare the Caterpillar 311C U side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.

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