M320 - Tier 4 / Stage V

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

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.

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M320 (07E) Wheel Excavator - Product Brochure (Aus-NZ, Europe, N Am, Tu¨rkiye) M320 (07E) Wheel Excavator - Technical Specifications (Aus-NZ, Europe, N Am, Tu¨rkiye)

Specifications
Equipment
Related Products

Engine
Engine Power - ISO 14396	174 hp / 129.4 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric)
Engine Model	Cat C4.4
Net Power - ISO 9249	171 hp / 127.8 kW
Net Power - ISO 9249 (DIN)	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
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.

Drive
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 - 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
Maximum Swing Speed*	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

Machine Weight
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.

Service Refill Capacities
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
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 / 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
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 / 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").

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).

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

Equipment Management

Cat® Equipment Management gives you access to the data you need to keep your equipment on the job site and earning money. You can track equipment location and hours, monitor machine use and health, then take informed action that will keep your operation running smoothly, efficiently and profitably.

Model
VisionLink®
Cat Remote Troubleshooting

GC Hammers

Cat® hammers make short work of your demolition, construction, and quarry needs. Combine the simple, lightweight design of the GC Hammer series with the reliability, durability, and value you expect from Cat products. The result is a low cost per hour solution providing the consistent power and performance you need.

Model	Blows per Minute	Minimum Operating Weight	Rated Flow - Minimum
H115 GC S	450 to 800	3098 lb / 1405 kg	24 gal/min / 90 l/min
H120 GC S	400 to 800	3849 lb / 1746 kg	33 gal/min / 125 l/min

Performance Hammers

Cat® hydraulic hammers make short work of your demolition, construction, quarry and production breaking needs. Cat Hammers are high performance breakers, designed to help you get the most from your Cat excavators.

Model	Blows per Minute	Minimum Operating Weight	Rated Flow - Minimum
H115 S	370 to 800	2354 lb / 1070 kg	19 gal/min / 70 l/min
H130 S	320 to 600	3850 lb / 1750 kg	32 gal/min / 120 l/min

Primary Pulverizers

Productive demolition and maximum up time with one point of support for your entire system.

Model	Cycle Time - Open	Cycle Time - Close	Crushing Force - Primary Cutter
P318 Primary Pulverizer	1.6 s	1 s	308 Sh Ton / 2740 kN

Multi-Processor with Demolition Jaws

Used to reduce any strength concrete, with and without rebar.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Demolition Jaw	1.6 s	18 tons	1 s

Multi-Processor with Universal Jaws

Used for precision demolition, sectioning concrete and down-sizing concrete for crushers.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Universal Jaw	1.6 s	18 tons	1 s

Multi-Processor with Pulverizer Jaws

Used to completely separate rebar from concrete and reduce concrete to the smallest size; also has great picking capability.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Pulverizer Jaw	1.6 s	18 tons	1 s

Tiltrotators

Helps you get the job done faster with the quality you expect from Cat products. Integrated to your excavator, Tiltrotators are productive, easy-to-use, and add value to your operation. Tiltrotators are a versatile solution providing enhancements to your operation.

Model	Machine Class	Weight	Interface Options: Top-Bottom
TRS20 Tiltrotator: 645-6920	18-24 ton Excavators	1779 lb / 807 kg	HCS70 / HCS70
TRS20 Tiltrotator: 645-6921	18-24 ton Excavators	1664 lb / 755 kg	Pin-on / S70

Vibratory Plate Compactors

Vibratory action and dynamic force provides excellent compaction in a compact size.

Model	Impulse Force	Cycles/Minimum	Base Plate Width
CVP75	16508 lb / 74 kN	2200	29 in / 737 mm
CVP110	24669 lb / 110 kN	2200	34 in / 864 mm

Multi-Processor with Shear Jaws

Used to reduce angle iron, channel iron, beams, pipe, rebar, cable and tires.

Model	Cycle Time - Open	Excavator Minimum	Cycle Time - Close
MP318 Shear Jaw	1.6 s	18 tons	1 s