Caterpillar

M320 Wheel Excavator

Name: M320 Wheel Excavator
Brand: Caterpillar

Engine Power – ISO 14396

174 hp

129.4 kW

Operating Weight Maximum

46740 lb

21200 kg

Maximum Travel Speed

21.7 mile/h

35 km/h

Overview

The Cat® M320 Wheel Excavator helps provide top performance with high swing torque to get the job done fast. With low maintenance costs, long service intervals, and 100 percent daily ground level check, the M320 helps save you time and money. A cab made for operator comfort helps keep you working quickly and efficiently.

Media

Stick Steer for Cat® Excavators

Exterior

360° Exterior view. Double click on the image to zoom in on any area of the product.

Interior

360° Interior view. Double click on the image to zoom in on any area of the product.

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Features

Latest Features

High Performance

Work in Comfort

Low Maintenance Costs

Simple to Operate

Safety Features

Integrated Cat® Technologies

Sustainability

Specifications

US Metric

Engine

Spec	Value
Engine Power – ISO 14396	174 hp 129.4 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 127.8 kW
Net Power – ISO 9249 (DIN)	174 hp (metric) 174 hp (metric)
Bore	4.1 in 105 mm
Stroke	5.3 in 135 mm
Displacement	268.5 in³ 4.4 l
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note (1)	Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed at 2,200 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 the engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated 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. 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.

Drive

Spec	Value
Maximum Travel Speed	21.7 mile/h 35 km/h

Hydraulic System

Spec	Value
Main System – Maximum Flow – Implement	81 gal/min 306 l/min
Maximum Pressure – Implement Circuit – Normal	5076 psi 35000 kPa
Maximum Pressure – Implement Circuit – Heavy Lift	5366 psi 37000 kPa
Maximum Pressure – Implement Circuit – Travel Circuit	5076 psi 35000 kPa

Swing Mechanism

Spec	Value
Maximum Swing Speed*	9.2 r/min 9.2 r/min
Maximum Swing Torque	38722 lbf·ft 52.5 kN·m
Note (1)	For CE-marked machine default value may be set lower For CE-marked machine default value may be set lower

Machine Weight

Spec	Value
Operating Weight Maximum	46740 lb 21200 kg
Operating Weight Minimum	41450 lb 18800 kg
Note (1)	Operating weight includes full fuel tank, operator, bucket 700 kg (1,543 lb) and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2500 mm (8'2") stick, 3600 kg (7,937 lb) counterweight, bucket and 220 kg (485 lb) quick coupler. Operating weight includes full fuel tank, operator, bucket 700 kg (1,543 lb) and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2500 mm (8'2") stick, 3600 kg (7,937 lb) counterweight, bucket and 220 kg (485 lb) quick coupler.

Service Refill Capacities

Spec	Value
Fuel Tank	124.2 gal (US) 470 l
Diesel Exhaust Fluid (DEF)	7.9 gal (US) 30 l
Cooling System	8.4 gal (US) 31.7 l
Hydraulic Tank	40.9 gal (US) 155 l
Hydraulic System – Including Tank	71.3 gal (US) 270 l

Dimensions

Spec	Value
Boom	Variable Adjustable Boom 5260 mm (17'3") Variable Adjustable Boom 5260 mm (17'3")
Stick	2500 mm (8'2") 2500 mm (8'2")
Bucket	GD 0.98 m³ (1.28 yd³) GD 0.98 m³ (1.28 yd³)
Shipping Height – Top of Cab	11.1 ft 3370 mm
Shipping Length	29.3 ft 8925 mm
Support Point	11.7 ft 3580 mm
Tail Swing Radius	8.5 ft 2600 mm
Counterweight Clearance	4.3 ft 1306 mm
Ground Clearance	1.4 ft 420 mm
Undercarriage Length	16.6 ft 5050 mm
Wheel Base	8.9 ft 2700 mm

Working Ranges and Forces

Spec	Value
Boom	Variable Adjustable Boom 5260 mm (17'3") Variable Adjustable Boom 5260 mm (17'3")
Stick	2500 mm (8'2") 2500 mm (8'2")
Bucket	GD 0.98 m³ (1.28 yd³) GD 0.98 m³ (1.28 yd³)
Maximum Cutting Height	32.6 ft 9950 mm
Maximum Loading Height	22.8 ft 6960 mm
Maximum Digging Depth	19.8 ft 6030 mm
Maximum Vertical Wall Digging Depth	13.9 ft 4230 mm
Maximum Reach at Ground Line	30.5 ft 9290 mm
Stick Forces (ISO)	20682 lbf 92 kN
Bucket Forces (ISO)	30799 lbf 137 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"). Force values are calculated with heavy lift on, a GD bucket (pin-on) and a tip radius of 1462 mm (4'10"). 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"). Force values are calculated with heavy lift on, a GD bucket (pin-on) and a tip radius of 1462 mm (4'10").

Air Conditioning System

Spec	Value
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 (1.9 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 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).