M320 Excavator | Wheel Excavator | Cat® Excavator | Cat

Engine

Engine Power - ISO 14396	174 hp 129 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric) 176 hp (metric)
Engine Model	Cat® C4.4 Cat® C4.4
Net Power - ISO 9249	171 hp 128 kW
Net Power - ISO 9249 (DIN)	174 hp (metric) 174 hp (metric)
Bore	4 in 105 mm
Stroke	5 in 127 mm
Displacement	269 in³ 4.4 l
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Note (1)	Net power advertised is the power available at the flywheel when engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. Net power advertised is the power available at the flywheel when engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. 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. ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels* up to: 100% 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. 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.

Machine Weight

Operating Weight Maximum	47400 lb 21500 kg
Operating Weight Minimum	44100 lb 20000 kg
Note (1)	Operating weight includes full fuel tank, operator, General Duty (GD) bucket and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2.92 m (9'7") stick and 4000 kg (8,800 lb) counterweight. Operating weight includes full fuel tank, operator, General Duty (GD) bucket and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2.92 m (9'7") stick and 4000 kg (8,800 lb) counterweight.

Drive

Maximum Travel Speed

22 mile/h 35 km/h

Hydraulic System

Main System - Maximum Flow - Implement	113 gpm 429 L/min
Maximum Pressure - Implement Circuit - Normal	5080 psi 35000 kPa
Maximum Pressure - Implement Circuit - Heavy Lift	5370 psi 37000 kPa
Maximum Pressure - Implement Circuit - Travel Circuit	5080 psi 35000 kPa

Swing Mechanism

Maximum Swing Speed	11 r/min 11 r/min
Maximum Swing Torque	45700 lbf·ft 62 kN·m

Service Refill Capacities

Fuel Tank	89.3 gal (US) 338 l
Cooling System	7.7 gal (US) 29 l
Hydraulic Tank	39.9 gal (US) 151 l
Hydraulic System - Including Tank	71.3 gal (US) 270 l

Dimensions

Boom	One-Piece Boom 5.7 m (18'7") One-Piece Boom 5.7 m (18'7")
Stick	2.92 m (9'7") 2.92 m (9'7")
Bucket	General Duty (GD) 1.19 m³ (1.56 yd³) General Duty (GD) 1.19 m³ (1.56 yd³)
Shipping Height - Top of Cab	11 ft 3355 mm
Shipping Length	31.5 ft 9600 mm
Support Point	9.4 ft 2860 mm
Tail Swing Radius	9.2 ft 2817 mm
Counterweight Clearance	4.3 ft 1316 mm
Ground Clearance	1.1 ft 325 mm
Undercarriage Length	16.9 ft 5160 mm
Wheel Base	9.2 ft 2800 mm

Working Ranges and Forces

Boom	One-Piece Boom 5.7 m (18'7") One-Piece Boom 5.7 m (18'7")
Stick	2.92 m (9'7") 2.92 m (9'7")
Bucket	General Duty (GD) 1.19 m³ (1.56 yd³) General Duty (GD) 1.19 m³ (1.56 yd³)
Digging Height	32 ft 9740 mm
Dump Height	22.2 ft 6780 mm
Maximum Digging Depth	21.1 ft 6430 mm
Maximum Vertical Wall Digging Depth	17.8 ft 5413 mm
Maximum Reach at Ground Line	32.4 ft 9880 mm
Stick Forces (ISO)	22931 lbf 102 kN
Bucket Forces (ISO)	26977 lbf 120 kN
Note (1)	All Dimensions are approximate. Values are with 10.00-20 Dual Pneumatic Tires. All Dimensions are approximate. Values are with 10.00-20 Dual Pneumatic Tires.

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 1 kg (2.2 lb) of refrigerant, which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg (2.2 lb) of refrigerant, which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).