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M322D

Wheel Excavators

The Cat® 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 123 kW
Gross Power 129 kW
Bore 105 mm
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M322D
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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 drive. This closed hydraulic circuit maximizes swing... 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

Heavy-Duty Axles and StabilizersThe D Series Wheel Excavator undercarriage provides rigidity and long life. Effective hydraulic line routing, transmission protection and... 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 M322D

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Engine
Engine Model Cat® C6.6 with ACERT™ Technology
Net Power 123 kW
Gross Power 129 kW
Bore 105 mm
Stroke 127 mm
Displacement 6.6 B
Cylinders 6
Maximum Torque - 1,400 rpm 750 N·m
Net Power - ISO 9249 123 kW
Ratings 2000 r/min
Net Power - 2,000 rpm - ISO 9249 123 kW
Net Power - 80/1269/EEC 123 kW
Weights
Dozer Blade 920 kg
Outriggers 1260 kg
VA Boom* - Rear Dozer Only 19650 kg
One-Piece Boom* - Rear Dozer, Front Outriggers 20200 kg
VA Boom* - Rear Dozer, Front Outriggers 20850 kg
One-Piece Boom* - Front and Rear Outriggers 20450 kg
VA Boom* - Front and Rear Outriggers 21100 kg
Counterweights - Optional 4400/5400 kg (9,700/11,905 lb)
Sticks - Long (2900 mm) 780 kg
Sticks - Short (2200 mm) 650 kg
One-Piece Boom* - Rear Dozer Only 19000 kg
Sticks - Medium (2500 mm) 700 kg
Counterweights - Standard 3900 kg
Operating Weight 19 500 to 23 500 kg (42,990 to 51,809 lb)
Swing Mechanism
Swing Speed 9 r/min
Swing Torque 56 kN·m
Hydraulic System
Maximum Flow - Auxiliary Circuit - Medium Pressure 50 l/min
Maximum Flow - Implement/Travel Circuit 350 l/min
Maximum Flow - Swing Mechanism 112 l/min
Tank Capacity 220 B
Maximum Pressure - Implement Circuit - Heavy Lift 375 bar
Maximum Pressure - Implement Circuit - Normal 350 bar
Maximum Flow - Auxiliary Circuit - High Pressure 250 l/min
Maximum Pressure - Travel Circuit 350 bar
Maximum Pressure - Swing Mechanism 340 bar
System 350 B
Maximum Pressure - Auxiliary Circuit - Medium Pressure 185 bar
Maximum Pressure - Auxiliary Circuit - High Pressure 350 bar
Transmission
Drawbar Pull 112 kN
Maximum Gradeability 60%
Creeper Speed - 2nd Gear 12 km/h
Forward/Reverse - 1st Gear 7 km/h
Forward/Reverse - 2nd Gear 25 km/h
Creeper Speed - 1st Gear 3 km/h
Service Refill Capacities
Final Drive 2.5 B
Engine Crankcase 15 B
Cooling 37 B
Fuel Tank 385 B
Front Steering Axle - Differential 11 B
Rear Axle - Housing (Differential) 14 B
Powershift Transmission 2.5 B
Tires
Standard 1) 11.00-20 (dual pneumatic)
Optional 1) 10.00-20 (dual solid rubber)
Undercarriage
Ground Clearance 380 mm
Minimum Turning Radius - Standard Axle - End of One-Piece Boom 9300 mm
Minimum Turning Radius - Standard Axle - End of VA Boom 7800 mm
Minimum Turning Radius - Standard Axle - Outside of Tire 6800 mm
Oscillation Axle Angle ±9°
Maximum Steering Angle 35°
Bucket Specifications
Bucket Capacities 0.44 to 1.57 m3 (0.57 to 2.05 yd3)
Working Ranges
Maximum Reach - Ground Level 10320 mm
Maximum Digging Depth 6680 mm
Drive
Maximum Travel Speed 25 km/h
Sound Levels
Exterior Sound Exterior Sound
Cab/ROPS/FOGS
Standards Standards

SELECT MODELS TO COMPARE

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M318

Engine Power - ISO 14396 129 kW
Engine Model C4.4
Bore 105 mm
Displacement 4.4 l
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M314

Engine Power - ISO 14396 100 kW
Engine Model Cat C3.6
Bore 98 mm
Displacement 3.6 l
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Wheel Excavators

M320F

Engine Model Cat® C7.1 ACERT™
Net Power 126 kW
Bore 105 mm
Stroke 135 mm
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M320F (2017)

Engine Model Cat C7.1
Net Power 126 kW
Bore 105 mm
Stroke 135 mm
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Wheel Excavators

M317

Engine Model C4.4
Engine Power - ISO 14396 112 kW
Net Power - ISO 9249 108 kW
Bore 105 mm
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Wheel Excavators

M316F (2017)

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

M317F (2017)

Engine Model Cat C4.4 with Twin Turbo
Net Power 112 kW
Bore 105 mm
Stroke 127 mm
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Wheel Excavators

M315

Engine Model 3054 TA
Net Power 85 kW
Gross Power 91 kW
Flywheel Power 85 kW
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