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M318D

Wheel Excavators

The D Series incorporates innovations for improved performance and versatility. Increased lifting capacity, improved cycle times and ease of operation lead to increased productivity and lower operating costs.

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Engine Model Cat® C6.6 with ACERT™ Technology
Net Power 124 kW
Gross Power 130 kW
Bore 105 mm
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M318D
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FEATURES & BENEFITS

Engine

Powerful PerformanceThe Cat® C6.6 engine with ACERT™ Technology introduces a series of evolutionary, incremental improvements that provide breakthrough engine performance... Read more

Hydraulics

Dedicated Swing PumpA dedicated variable displacement piston pump and fixed displacement piston motor power the swing mechanism. This closed hydraulic circuit maximizes s... Read more

SmartBoom™

Rock ScrapingScraping rock and finishing work is easy and fast. SmartBoom™ simplifies the task and allows the operator to concentrate on stick and bucket, while boom free... Read more

Environmentally Responsible Design

Fuel EfficiencyThe D Series Wheel Excavators are designed for outstanding performance with high fuel efficiency. This means more work done in a day, less fuel consumed an... Read more

Operator Comfort

Interior Operator StationImproved visibility and ergonomics are some of the many new features of the D Series Wheel Excavators. The operator station provides maximum spac... Read more

Undercarriage

Increased Travel SpeedThe maximum travel speed for the M318D has been increased from 34 to 37 km/h, reducing travel time between sites and increasing productivity.Heavy-D... Read more

Booms and Sticks

DesignBooms and sticks are welded, box section structures with thick, multiplate fabrications in high stress areas, for rugged performance and long service life.Flexibili... Read more

Work Tools

Work ToolsCat work tools are designed to function as an integral part of your excavator and to provide the best possible performance in your particular application. All w... Read more

Serviceability and Complete Customer Support

Ground Level MaintenanceCaterpillar designed its D Series Wheel Excavators with the operator and service technician in mind. Gull-wing doors, with pneumatically-assisted... Read more

SPECIFICATIONS FOR M318D

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Engine
Engine Model Cat® C6.6 with ACERT™ Technology
Net Power 124 kW
Gross Power 130 kW
Bore 105 mm
Stroke 127 mm
Displacement 6.6 l
Cylinders 6
Maximum Torque - 1,400 rpm 805 N·m
Net Power - 80/1269/EEC 124 kW
Net Power - ISO 9249 124 kW
Net Power - 1,800 rpm - ISO 9249 124 kW
Ratings 1800 r/min
Weights
Dozer Blade 740 kg
Outriggers 1030 kg
Counterweight 4000 kg
One-Piece Boom* - Rear Dozer Only 17350 kg
Sticks - Long (2800 mm) 600 kg
Sticks - Short (2200 mm) 550 kg
VA Boom* - Rear Dozer Only 17850 kg
Operating Weight 18 200 to 20 100 kg (40,124 to 44,313 lb)
One-Piece Boom* - Rear Dozer, Front Outriggers 18350 kg
One-Piece Boom* - Front and Rear Outriggers 18550 kg
Sticks - Medium (2500 mm) 580 kg
Sticks - Industrial (3300 mm) 520 kg
VA Boom* - Front and Rear Outriggers 19100 kg
VA Boom* - Rear Dozer, Front Outriggers 18900 kg
Swing Mechanism
Swing Speed 10.5 r/min
Swing Torque 48 kN·m
Hydraulic System
Maximum Flow - Implement/Travel Circuit 290 l/min
Maximum Pressure - Auxiliary Circuit - High Pressure 350 bar
Maximum Pressure - Swing Mechanism 310 bar
Maximum Flow - Auxiliary Circuit - High Pressure 250 l/min
Tank Capacity 170 l
Maximum Pressure - Auxiliary Circuit - Medium Pressure 185 bar
Maximum Pressure - Implement Circuit - Normal 350 bar
System 255 l
Maximum Flow - Swing Mechanism 112 l/min
Maximum Flow - Auxiliary Circuit - Medium Pressure 50 l/min
Maximum Pressure - Implement Circuit - Heavy Lift 375 bar
Maximum Pressure - Travel Circuit 350 bar
Transmission
Drawbar Pull 99 kN
Maximum Gradeability 60%
Creeper Speed - 2nd Gear 13 km/h
Creeper Speed - 1st Gear 3 km/h
Forward/Reverse - 2nd Gear 37 km/h
Forward/Reverse - 1st Gear 8 km/h
Service Refill Capacities
Cooling 36 l
Engine Crankcase 15 l
Rear Axle - Housing (Differential) 14 l
Front Steering Axle - Differential 10.5 l
Final Drive 2.5 l
Powershift Transmission 2.5 l
Fuel Tank 385 l
Tires
Standard 1) 10.00-20 (dual pneumatic)
Optional 1) 11.00-20 (dual pneumatic) 2) 18 R 19.5 XF (single pneumatic) 3) 10.00-20 (dual solid rubber)
Undercarriage
Ground Clearance 370 mm
Minimum Turning Radius - Wide Axle - End of One-Piece Boom 8500 mm
Minimum Turning Radius - Standard Axle - Outside of Tire 6400 mm
Oscillation Axle Angle ±9°
Minimum Turning Radius - Standard Axle - End of One-Piece Boom 8300 mm
Minimum Turning Radius - Wide Axle - End of VA Boom 7100 mm
Maximum Steering Angle 35°
Minimum Turning Radius - Standard Axle - End of VA Boom 7000 mm
Minimum Turning Radius - Wide Axle - Outside of Tire 6500 mm
Bucket Specifications
Bucket Capacities 0.38 to 1.26 m3 (0.50 to 1.65 yd3)
Working Ranges
Maximum Reach - Ground Level 9600 mm
Maximum Digging Depth 6360 mm
Drive
Maximum Travel Speed 37 km/h
Sound Levels
Exterior Sound Exterior Sound
Cab/ROPS/FOGS
Standards Standards

SELECT MODELS TO COMPARE

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Engine Model Cat® C7.1 ACERT™
Net Power 126 kW
Net Power - Maximum - 80/1269/EEC 126 kW
Net Power - Rated - 80/1269/EEC 126 kW
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M317

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Engine Power - ISO 14396 112 kW
Net Power - ISO 9249 108 kW
Bore 105 mm
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M320D2

Engine Model Cat C7.1
Net Power 124 kW
Bore 105 mm
Stroke 135 mm
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M322F (2017)

Engine Model Cat C7.1
Net Power 126 kW
Bore 105 mm
Stroke 135 mm
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M316F (2017)

Engine Model Cat C4.4
Net Power 105 kW
Bore 105 mm
Stroke 127 mm
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M315D2

Engine Model Cat® C4.4
Net Power 95 kW
Bore 105 mm
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related attachment

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General Duty

General Duty Bucket 600 mm (24 in): 462-8166
General Duty

General Duty Bucket 450 mm (18 in): 385-5644
General Duty

General Duty Bucket 750 mm (30 in): 387-5718
General Duty

General Duty Bucket 600 mm (24 in): 388-9586

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