Caterpillar · Mobile Excavator

Caterpillar M318 Mobile Excavator Specs

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Overview

The Caterpillar M318 Mobile Excavator is a mobile 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 140 hp, working depth of 16.70 ft, reach of 27.86 ft, travel speed of 21.0 mph, fuel capacity of 97.8 gal and hydraulic capacity of 79.3 gal. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Caterpillar M318 Mobile Excavator against similar mobile excavator models by power, weight, capacity, dimensions, speed, and other technical values.

Key Specifications

Gross Power
140
hp

Max Digging Depth
16.70
ft

Overall Width
9.68
ft

Full Specifications

49 specs

Dimensions

Ground Clearance 1.24 ft / 0.38 m

Height to Top of Cab 10.18 ft / 3.10 m

Max Cutting Height 27.99 ft / 8.53 m

Max Digging Depth 16.70 ft / 5.09 m

Max Loading Height 19.95 ft / 6.08 m

Max Reach Along Ground 27.86 ft / 8.49 m

Max Vertical Wall Dig Depth 9.62 ft / 2.93 m

Overall Width 9.68 ft / 2.95 m

Overall Width - Outriggers Down 12.59 ft / 3.84 m

Upper Structure Clearance 4.20 ft / 1.28 m

Wheelbase 9.03 ft / 2.75 m

boom w/ stick 1800mm 2

boom w/ stick 2400mm 3

boom w/ stick 2800mm 4

Engine

Creeper Speed - 2nd Gear 10

Displacement 403 cu in / 6.6 L

Engine Model 3116T

Flywheel Power 131 hp / 97.7 kW

Fuel Capacity 97.80 gal / 370.2 L

Fuel Tank 84.60 gal / 320.2 L

Fuel Tank Capacity 85 gal / 321.8 L

Gross Power 140 hp / 104.4 kW

Hydraulic Pump Flow Capacity 98.30 gal/min / 372.1 L/min

Hydraulic System Fluid Capacity 79.30 gal / 300.2 L

Hydraulic System Relief Valve Pressure 4,785 psi / 329.9 bar

Hydraulic Tank 35.70 gal / 135.1 L

Maximum Bucket Capacity 1.40 yd³ / 1.07 m³

Maximum Gradeability 57 %

Travel Speed 21 mph / 33.8 km/h

Hydraulics

Implement/Travel Circuit 68.68 gal/min / 260.0 L/min

Normal 4,779 psi / 329.5 bar

Travel Circuit 4,694 psi / 323.6 bar

Other

Bucket Digging Force - One Piece Boom 25,650 lb / 11,635 kg

Bucket Digging Force - Va Boom 25,650 lb / 11,635 kg

Maximum Digging Depth - One Piece Boom 20 ft / 6.10 m

Maximum Digging Depth - Va Boom 20.30 ft / 6.19 m

Maximum Reach - Ground Level 30.80 ft / 9.39 m

Maximum Reach - Ground Level, One Piece Boom 30.80 ft / 9.39 m

Maximum Reach - Ground Level, Va Boom 30.70 ft / 9.36 m

Stick Digging Force - One Piece Boom 16,875 lb / 7,654 kg

Stick Digging Force - Va Boom 16,875 lb / 7,654 kg

Cooling 9.30

Engine Crankcase 5.60 gal / 21.2 L

Front Steering Axle - Differential 2 lb / 1 kg

Hydraulic System - Including Tank 58.20 gal / 220.3 L

Maximum Travel Speed 21 mph / 33.8 km/h

Powershift Transmission 0.80

Rear Axle - Housing (Differential) 3 lb / 1 kg

Undercarriage

Max Travel Speed 21.20 mph / 34.1 km/h

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Frequently Asked Questions

How powerful is the Caterpillar M318 Mobile Excavator engine? +

The Caterpillar M318 Mobile Excavator produces 140 hp (104.4 kW) of engine power. This output is typical for its weight class and designed to handle demanding Mobile Excavator work cycles efficiently.

What is the maximum digging depth of the Caterpillar M318 Mobile Excavator? +

The Caterpillar M318 Mobile Excavator has a maximum digging depth of 16.70 ft (5.09 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Caterpillar M318 Mobile Excavator? +

The Caterpillar M318 Mobile Excavator has a maximum reach along the ground of 27.86 ft (8.49 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Caterpillar M318 Mobile Excavator? +

The Caterpillar M318 Mobile Excavator has a maximum travel speed of 21.0 mph (33.8 km/h), enabling efficient movement between work areas on the job site.

How does the Caterpillar M318 Mobile Excavator compare to similar Mobile Excavator models? +

You can compare the Caterpillar M318 Mobile Excavator 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.