Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : M322D ➔
The Caterpillar M322D is a wheeled excavator in Caterpillar's M Series, designed for road work, utility projects, material handling, and general excavation. It is powered by a Caterpillar diesel engine and uses a hydraulic system optimized for digging, lifting, and attachment operation. The M322D typically features a cab with operator controls, a wheeled undercarriage for mobility between job sites, and compatibility with a range of buckets and work tools. As an excavator, it is used in construction, municipal, and infrastructure applications where travel speed and versatility are important. Specifications may vary by configuration, region, and production year.
Boom/Stick Excavator Option 1
Caterpillar M322D Excavator Boom/Stick Excavator Option 1 specifications
Max Digging Depth
21.30 ft (6.49 m)
Max Reach Along Ground
33.80 ft (10.30 m)
Boom/Stick Mobile Excavator Option 1
Caterpillar M322D Excavator Boom/Stick Mobile Excavator Option 1 specifications
Max Cutting Height
34.70 ft (10.58 m)
Max Digging Depth
19.70 ft (6.00 m)
Max Loading Height
22.80 ft (6.95 m)
Max Reach Along Ground
31.50 ft (9.60 m)
Max Vertical Wall Dig Depth
14.60 ft (4.45 m)
Shipping Height of Unit
10.70 ft (3.26 m)
Shipping Length of Unit
31.00 ft (9.45 m)
Boom/Stick Mobile Excavator Option 2
Caterpillar M322D Excavator Boom/Stick Mobile Excavator Option 2 specifications
Max Cutting Height
34.90 ft (10.64 m)
Max Digging Depth
20.70 ft (6.31 m)
Max Loading Height
23.60 ft (7.19 m)
Max Reach Along Ground
32.30 ft (9.85 m)
Max Vertical Wall Dig Depth
14.60 ft (4.45 m)
Shipping Height of Unit
10.60 ft (3.23 m)
Shipping Length of Unit
31.00 ft (9.45 m)
Boom/Stick Mobile Excavator Option 3
Caterpillar M322D Excavator Boom/Stick Mobile Excavator Option 3 specifications
Max Cutting Height
35.90 ft (10.94 m)
Max Digging Depth
22.00 ft (6.71 m)
Max Loading Height
24.70 ft (7.53 m)
Max Reach Along Ground
33.60 ft (10.24 m)
Max Vertical Wall Dig Depth
15.90 ft (4.85 m)
Shipping Height of Unit
10.70 ft (3.26 m)
Shipping Length of Unit
31.00 ft (9.45 m)
Boom/Stick Mobile Excavator Option 4
Caterpillar M322D Excavator Boom/Stick Mobile Excavator Option 4 specifications
Max Cutting Height
31.80 ft (9.69 m)
Max Digging Depth
19.00 ft (5.79 m)
Max Loading Height
20.70 ft (6.31 m)
Max Reach Along Ground
31.90 ft (9.72 m)
Max Vertical Wall Dig Depth
14.70 ft (4.48 m)
Shipping Height of Unit
10.90 ft (3.32 m)
Shipping Length of Unit
31.70 ft (9.66 m)
Bucket
Caterpillar M322D Excavator Bucket specifications
Bucket Capacities
2.05 cu yd (1.57 cu m)
Maximum Bucket Capacity
2.10 cu yd (1.61 cu m)
Minimum Bucket Capacity
0.80 cu yd (0.61 cu m)
Reference Bucket Capacity
1.60 cu yd (1.22 cu m)
Dimensions
Caterpillar M322D Excavator Dimensions specifications
Ground Clearance
1.30 ft (0.40 m)
Height - Top of Cab
10.50 ft (3.20 m)
Overall Width
9.10 in (23.11 cm)
Overall Width - Outriggers Down
13.00 ft (3.96 m)
Tail Swing Radius
9.10 ft (2.77 m)
Upper Structure Clearance
4.30 ft (1.31 m)
Wheelbase
9.10 ft (2.77 m)
DRIVE SYSTEM
Caterpillar M322D Excavator DRIVE SYSTEM specifications
Maximum Travel Speed
15.60 mph (25.11 kph)
Engine
Caterpillar M322D Excavator Engine specifications
Bore
4.20 in (10.67 cm)
Displacement
403.00 cu in (6,604.00 cu cm)
Engine Model
Cat C6.6 with ACERT Technology
Gross Power
173.00 hp (129.01 kw)
Make
Caterpillar
Maximum Torque - 1,400 rpm
553.00 lbs ft (749.76 nm)
Net Power
165.00 hp (123.04 kw)
Net Torque
553.20 lbs ft (750.03 nm)
Number of Cylinders
6
Power Measured @
2000 rpm
Ratings
2000 rpm
Stroke
5.00 in (12.70 cm)
Torque Measured @
1400 rpm
Hydraulic System
Caterpillar M322D Excavator Hydraulic System specifications
Maximum Flow - Auxiliary Circuit - High Pressure
55.00 gpm (208.18 lpm)
Maximum Flow - Auxiliary Circuit - Medium Pressure
13.00 gpm (49.21 lpm)
Maximum Flow - Implement/Travel Circuit
92.00 gpm (348.22 lpm)
Maximum Flow - Swing Mechanism
30.00 gpm (113.55 lpm)
Maximum Pressure - Auxiliary Circuit - High Pressure
5076 psi
Maximum Pressure - Auxiliary Circuit - Medium Pressure
2683 psi
Maximum Pressure - Implement Circuit - Heavy Lift
5439 psi
Maximum Pressure - Implement Circuit - Normal
5076 psi
Maximum Pressure - Swing Mechanism
4931 psi
Maximum Pressure - Travel Circuit
5076 psi
System
92.00 gal (348.22 l)
Tank Capacity
58.00 gal (219.53 l)
Operating Specifications
Caterpillar M322D Excavator Operating Specifications specifications
Alternator Supplied Amperage
75 amps
Cooling System Fluid Capacity
8.80 gal (33.31 l)
Engine Oil Capacity
4.00 gal (15.14 l)
Front Diff Fluid Capacity
3.00 gal (11.36 l)
Fuel Capacity
101.80 gal (385.31 l)
Hydraulic Pump Flow Capacity
92.50 gpm (350.11 lpm)
Hydraulic Pump Type
Piston
Hydraulic System Fluid Capacity
88.50 gal (334.97 l)
Hydraulic System Relief Valve Pressure
5076 psi
Max Steering Angle
35 degrees
Operating Weight
49,604.10 lbs (22,500.07 kg)
Oscillating Axle Angle
9 degrees
Rear Diff Fluid Capacity
3.90 gal (14.76 l)
Tire Size
11.00-20 16PR dual
Service Refill Capacities
Caterpillar M322D Excavator Service Refill Capacities specifications
Cooling
9.80 gal (37.09 l)
Engine Crankcase
4.00 gal (15.14 l)
Final Drive
0.70 gal (2.65 l)
Front Steering Axle - Differential
2.90 gal (10.98 l)
Fuel Tank
102.00 gal (386.07 l)
Powershift Transmission
0.70 gal (2.65 l)
Rear Axle - Housing (Differential)
3.70 gal (14.00 l)
Swing Mechanism
Caterpillar M322D Excavator Swing Mechanism specifications
Swing Speed
9 rpm
Swing Torque
41,303.00 lbs ft (55,998.61 nm)
Tires
Caterpillar M322D Excavator Tires specifications
Optional
1) 10.00-20 (dual solid rubber)
Standard
1) 11.00-20 (dual pneumatic)
Transmission
Caterpillar M322D Excavator Transmission specifications
Creeper Speed - 1st Gear
2.00 mph (3.22 kph)
Creeper Speed - 2nd Gear
7.50 mph (12.07 kph)
Drawbar Pull
25,179.00 lbs (11,421.02 kg)
Forward/Reverse - 1st Gear
4.00 mph (6.44 kph)
Forward/Reverse - 2nd Gear
16.00 mph (25.75 kph)
Max Travel Speed
16.00 mph (25.75 kph)
Maximum Gradeability
60%
Number of Forward Gears
2
Number of Reverse Gears
2
Transmission Type
Gear
Undercarriage
Caterpillar M322D Excavator Undercarriage specifications
Ground Clearance
1.30 ft (0.40 m)
Oscillation Axle Angle
9 degrees
Weights
Caterpillar M322D Excavator Weights specifications
Dozer Blade
2,028.00 lbs (919.89 kg)
One-Piece Boom - Front and Rear Outriggers
45,085.00 lbs (20,450.24 kg)
One-Piece Boom - Rear Dozer, Front Outriggers
44,533.00 lbs (20,199.85 kg)
Outriggers
2,778.00 lbs (1,260.08 kg)
VA Boom - Front and Rear Outriggers
46,518.00 lbs (21,100.24 kg)
VA Boom - Rear Dozer Only
43,321.00 lbs (19,650.10 kg)
VA Boom - Rear Dozer, Front Outriggers
45,966.00 lbs (20,849.85 kg)
Working Ranges
Caterpillar M322D Excavator Working Ranges specifications
Maximum Digging Depth
22.00 ft (6.71 m)
Maximum Reach - Ground Level
33.90 ft (10.33 m)
