The Cat® M320 Excavator maximizes performance with up to 16 percent more swing torque to get the job done faster. Save time and money with up to 10 percent overall savings in maintenance costs, longer service intervals, and 100 percent daily ground-level maintenance. Combined with a comfortable working environment, the M320 keeps you working quickly and efficiently.
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Engine
Engine Power - ISO 14396
174.0 HP
129.0 kW
Engine Model
C4.4
C4.4
Engine Power - Maximum Gross - ISO 14396 - Metric
129.4 kW (176 hp) (PS)
129.4 kW (176 hp) (PS)
Bore
4.0 in
105.0 mm
Displacement
268.5 in³
4.4 l
Stroke
5.3 in
135.0 mm
Hydraulic System
Main System - Maximum Flow - Implement
81.0 gal/min
306.0 l/min
Maximum Pressure - Equipment
5366.0 psi
37000.0 kPa
Maximum Pressure - Swing
5729.0 gal/min
39500.0 kPa
Maximum Pressure - Travel
5076.0 gal/min
35000.0 kPa
Machine Weight
Operating Weight Maximum
46740.0 lb
21200.0 kg
Operating Weight Minimum
41450.0 lb
18800.0 kg
Service Refill Capacities
Cooling System
8.4 gal (US)
31.7 l
Diesel Exhaust Fluid (DEF)
7.9 gal (US)
30.0 l
Hydraulic System - Including Tank
71.3 gal (US)
270.0 l
Hydraulic Tank
40.9 gal (US)
155.0 l
Final Drive
0.7 gal (US)
2.5 l
Fuel Tank
124.2 gal (US)
470.0 l
Service Refill
Engine Oil
3.4 gal (US)
13.0 l
Dimensions
Boom
5260 mm (17'3")
5260 mm (17'3")
Bucket
0.98 m³ GD (1.28 yd³)
0.98 m³ GD (1.28 yd³)
Stick
2.5 m (8' 2")
2.5 m (8' 2")
Shipping Height - Top of Cab
11.0 ft
3370.0 mm
Shipping Length
29.3 ft
8925.0 mm
Counterweight Clearance
4.3 ft
1306.0 mm
Ground Clearance
1.4 ft
420.0 mm
Support Point
11.8 ft
3580.0 mm
Tail Swing Radius
8.5 ft
2600.0 mm
Wheel Base
8.9 ft
2700.0 mm
Working Ranges and Forces
Boom Type
VA Boom
VA Boom
Bucket
0.98 m³ GD (1.28 yd³)
0.98 m³ GD (1.28 yd³)
Stick
2.5 m (8' 2")
2.5 m (8' 2")
Reach at Ground Level
30.5 ft
9290.0 mm
Vertical Wall Digging Depth
13.9 ft
4230.0 mm
Cutting Height
32.6 ft
9950.0 mm
Bucket Forces (ISO)
30799.0 lbf
137.0 kN
Stick Forces (ISO)
20682.0 lbf
92.0 kN
Note (1)
Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1535 mm (5'0").
Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1535 mm (5'0").
Swing Mechanism
Swing Speed
9.2 r/min
9.2 r/min
Maximum Swing Torque
37000.0 ft·lbf
50.0 kN·m
Air Conditioning System
Note
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg of refrigerant which has a CO2 equivalent of 1.216 metric tonnes.
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg of refrigerant which has a CO2 equivalent of 1.216 metric tonnes.