M320 Wheeled Excavator
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.
Specifications
Equipment
Product Brochures
Attachments
Units:
Engine
Engine Power - ISO 14396
174 hp
129.4 kW
Engine Power - ISO 14396 (DIN)
176 hp (metric)
176 hp (metric)
Engine Model
C4.4
Net Power - ISO 9249
171 hp
127.8 kW
Net Power - ISO 9249 (DIN)
174 hp (metric)
174 hp (metric)
Bore
4 in
105 mm
Displacement
268.5 in³
4.4 l
Stroke
5.3 in
135 mm
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.
Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations“ (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
Transmission
Maximum Travel Speed
21.7 mile/h
35 km/h
Hydraulic System
Main System - Maximum Flow - Implement
81 gal/min
306 l/min
Maximum Pressure - Equipment
5366 psi
37000 kPa
Maximum Pressure - Swing
5729 gal/min
39500 kPa
Maximum Pressure - Travel
5076 gal/min
35000 kPa
Machine Weight
Operating Weight Maximum
46740 lb
21200 kg
Operating Weight Minimum
41450 lb
18800 kg
Service Refill Capacities
Cooling System
8.4 gal (US)
31.7 l
Diesel Exhaust Fluid (DEF)
7.9 gal (US)
30 l
Hydraulic System - Including Tank
71.3 gal (US)
270 l
Hydraulic Tank
40.9 gal (US)
155 l
Final Drive
0.7 gal (US)
2.5 l
Fuel Tank
124.2 gal (US)
470 l
Dimensions
Boom
5260 mm (17'3")
Bucket
0.98 m³ GD (1.28 yd³)
Stick
2.5 m (8' 2")
Shipping Height - Top of Cab
11 ft
3370 mm
Shipping Length
29.3 ft
8925 mm
Counterweight Clearance
4.3 ft
1306 mm
Ground Clearance
1.4 ft
420 mm
Support Point
11.8 ft
3580 mm
Tail Swing Radius
8.5 ft
2600 mm
Wheel Base
8.9 ft
2700 mm
Working Ranges and Forces
Boom Type
VA Boom
Bucket
0.98 m³ GD (1.28 yd³)
Stick
2.5 m (8' 2")
Reach at Ground Level
30.5 ft
9290 mm
Vertical Wall Digging Depth
13.9 ft
4230 mm
Cutting Height
32.6 ft
9950 mm
Bucket Forces (ISO)
30799 lbf
137 kN
Stick Forces (ISO)
20682 lbf
92 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").
Swing Mechanism
Swing Speed
9.2 r/min
9.2 r/min
Maximum Swing Torque
37000 ft·lbf
50 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.
Standard Equipment
NOTE
CAB
CAT TECHNOLOGY
ELECTRICAL SYSTEM
ENGINE
HYDRAULIC SYSTEM
SAFETY AND SECURITY
SERVICE AND MAINTENANCE
UNDERCARRIAGE AND STRUCTURES
