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M320 Wheel Excavator

Engine Power - ISO 14396

174 hp

Operating Weight Maximum

46,740 lb

Maximum Travel Speed

21.7 mile/h

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SPECIFICATIONS

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.

FULL SPECIFICATIONS

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

Dimensions

Boom

Variable Adjustable Boom 5260 mm (17'3")

Stick

2500 mm (8'2")

Bucket

GD 0.98 m³ (1.28 yd³)

Shipping Height - Top of Cab

11.1 ft

Shipping Length

29.3 ft

Support Point

11.7 ft

Tail Swing Radius

8.5 ft

Counterweight Clearance

4.3 ft

Ground Clearance

1.4 ft

Undercarriage Length

16.6 ft

Wheel Base

8.9 ft

Drive

Maximum Travel Speed

21.7 mile/h

Engine

Engine Power - ISO 14396

174 hp

Engine Power - ISO 14396 (DIN)

176 hp (metric)

Engine Model

Cat C4.4

Net Power - ISO 9249

171 hp

Net Power - ISO 9249 (DIN)

174 hp (metric)

Bore

4.1 in

Stroke

5.3 in

Displacement

268.5 in³

Biodiesel Capability

Up to B20¹

Emissions

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.

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.

Hydraulic System

Main System - Maximum Flow - Implement

81 gpm

Maximum Pressure - Implement Circuit - Normal

5,076 psi

Maximum Pressure - Implement Circuit - Heavy Lift

5,366 psi

Maximum Pressure - Implement Circuit - Travel Circuit

5,076 psi

Machine Weight

Operating Weight Maximum

46,740 lb

Operating Weight Minimum

41,450 lb

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.

Service Refill Capacities

Fuel Tank

124.2 gal (US)

Diesel Exhaust Fluid (DEF)

7.9 gal (US)

Cooling System

8.4 gal (US)

Hydraulic Tank

40.9 gal (US)

Hydraulic System - Including Tank

71.3 gal (US)

Swing Mechanism

Maximum Swing Speed*

9.2 r/min

Maximum Swing Torque

38,722 lbf·ft

Note (1)

*For CE-marked machine default value may be set lower

Working Ranges and Forces

Boom

Variable Adjustable Boom 5260 mm (17'3")

Stick

2500 mm (8'2")

Bucket

GD 0.98 m³ (1.28 yd³)

Maximum Cutting Height

32.6 ft

Maximum Loading Height

22.8 ft

Maximum Digging Depth

19.8 ft

Maximum Vertical Wall Digging Depth

13.9 ft

Maximum Reach at Ground Line

30.5 ft

Stick Forces (ISO)

20,682 lbf

Bucket Forces (ISO)

30,799 lbf

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").

STANDARD EQUIPMENT

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
- Sound-suppressed ROPS cab
- Keyless push-to-start engine control
- Height-adjustable console, infinite with no tool
- High-resolution 254 mm (10 in) LCD touchscreen monitor
CAT TECHNOLOGY
- VisionLink
- Remote Flash and Remote Troubleshoot
ELECTRICAL SYSTEM
- LED lights on chassis (left-hand, right-hand) and counterweight
- Programmable time-delay LED working lights
- Roading and indicator lights, front and rear
- Maintenance free batteries
- Centralized electrical disconnect switch
ENGINE
- Power Mode Selector
- One-touch low idle with automatic engine speed control
- Automatic engine idle shutdown
- 52°C (125°F) high-ambient cooling capacity
- Cold start capability -18°C (0°F)
- Double element air filter with integrated pre-cleaner
HYDRAULIC SYSTEM
- Boom, stick, and bucket drift reduction valves
- Automatic hydraulic oil warm up
- Heavy lift mode
SAFETY AND SECURITY
- Rear and right-side-view cameras
- Wide angle mirrors
- Lockable disconnect switch
- Anti-skid plate and countersunk bolts on service platform
- Signal/warning horn
SERVICE AND MAINTENANCE
- Scheduled Oil Sampling (S·O·S℠) ports
- Integrated vehicle health management system
UNDERCARRIAGE AND STRUCTURES
- Automatic brake/axle lock
- All wheel drive

OPTIONAL EQUIPMENT

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOM AND STICKS
- 5650 mm (18'6") One-piece boom
- 5260 mm (17'3") Variable Adjustable boom
- 2500 mm (8'2") stick
- 2900 mm (9'6") stick
CAB
- Operator Protective Guards (OPG)
CAT TECHNOLOGY
- Cat Grade with 2D
- Cat Grade with 2D with Attachment Ready Option (ARO)
- Laser catcher
- Cat Grade 3D ready
- Cat Grade Connectivity
- Cat Grade with Assist
- Cat Payload
- Cat Tiltrotator (TRS) Integration
ELECTRICAL SYSTEM
- Electrical refueling pump
HYDRAULIC SYSTEM
- Boom/stick lowering check valves
- Bucket cylinder check valves
- One-slider joysticks
- Two-slider joysticks
- Joystick steering
SAFETY AND SECURITY
- 360° visibility
- Inspection lighting
- 2D E-fence
- Cab Avoidance
SERVICE AND MAINTENANCE
- Automatic lubrication system for implement and swing system
UNDERCARRIAGE AND STRUCTURES
- 10.00-20 16 PR, dual tires
- 11.00-20-16 PR, dual tires
- 315/70R22.5, no gap dual tires (Europe only)
- 445/70R 19.5, single tires
- 300-80-22.5 dual pneumatic, spacerless tire
- 3600 kg (7,937 lb) counterweight (Europe only)
- 4200 kg (9,260 lb) counterweight