M320

Engine Power - ISO 14396:2002: 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 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.

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M320 Product Brochure (Aus-NZ, Eur, Korea, N Am) M320 Technical Specifications (Aus-NZ, Eur, Korea, N Am)

Specifications
Equipment
Related Products

Engine
Engine Power - ISO 14396:2002	174 hp / 129.4 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric)
Engine Model	C4.4
Net Power - ISO 9249	171 hp / 127.8 kW
Net Power - ISO 9249 (DIN)	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
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
- Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
- ROPS, sound suppression
- High-resolution 254 mm (10 in) LCD touchscreen monitor
CAT TECHNOLOGY
- VisionLink
- Remote Flash
- Remote Troubleshoot
ELECTRICAL SYSTEM
- LED lights on boom and cab
- LED lights on chassis (left-hand, right-hand) an counterweight
- Programmable time-delay LED working lights
- Roading and indicator lights, front and rear
- Maintenance free batteries
- Centralized electrical disconnect switch
- Electrical refueling pump
ENGINE
- Power Mode Selector
- One-touch low idle with auto engine speed control
- Auto engine idle shutdown
- 52° C (125° F) high-ambient cooling capacity
- Cold start capability -18° C (0° F)
- Double element air filter with integrated precleaner
- Electric fuel priming pump
- On-demand electric cooling fans with autoreverse function
HYDRAULIC SYSTEM
- Automatic swing brake
- Auto hydraulic oil warm up
- Electronic main control valve
- Boom and stick drift reduction valves
- Heavy lift mode
- Quick coupler circuit
- Separate dedicated swing pump
SAFETY AND SECURITY
- Rear and side-view cameras
- Wide angle mirrors
- Ground-level engine shutoff switch
- Anti-skid plate and countersunk bolts on service platform
- Signaling/warning horn
- Inspection lighting
- 2D E-Fence
SERVICE AND MAINTENANCE
- Sampling ports for Scheduled Oil Sampling (S-O-S)
- 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
- Deluxe cab
- Premium cab
- Auxiliary relay
CAT TECHNOLOGY
- Cat Grade Connectivity
- Cat Grade 2D
- Cat Grade with Attachment Ready Option (ARO)
- Cat Grade 3D dual GNSS
- Laser catcher
- Grade Assist
- Cat Payload
- Cat Tilt Rotator (TRS) Integration
ELECTRICAL SYSTEM
- Electrical refueling pump
HYDRAULIC SYSTEM
- One-slider joysticks
- Two-slider joysticks
- Combined flow/high-pressure auxiliary circuit
- SmartBoom
- Ride control
- Cat tilrotator support
- Joystick steering
SAFETY AND SECURITY
- 360° visibility
- Cat asset tracker
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
- 445/70R 19.5, single tires
- 300-80-22.5 dual pneumatic, spacerless tire
- 3600 kg (7,937 lb) counterweight
- 4200 kg (9,260 lb) counterweight

Grade

<p>Cat® Grade technologies combine digital design data, in-cab guidance, and automatic controls to enhance grading accuracy, reduce rework, and lower costs related to production earthmoving and rough, fine and finish grade applications.</p><p>Whether you're working on simple planes and slopes or complex contour designs, Grade technologies enable you to boost grading efficiency by as much as 50%, helping you get more work done – in less time and at a lower cost – than ever before.</p>

Model
Cat Grade with 2D for Excavators
Cat Grade with 3D for Excavators

Detect

On the surface, operators in the cabs of large mining equipment often cannot see if another machine or vehicle is too close for safe operation. Detect helps alleviate this potential safety hazard and can also be configured to provide valuable information about site conditions and other assets working in the area. Underground, continuous equipment movement on a longwall face can pose risks to those in the working area.

Model
Cat 2D E-fence for Excavators

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 Inspect
Cat Remote Troubleshooting
Cat Product Link

Payload

Cat® Payload technologies provide on-the-go load weighing to assist operators with hitting precise load targets every time, helping to reduce load times, optimize loading efficiency and increase jobsite productivity. Operators can track daily productivity from the cab, with quick access to information such as truck target weights, loads and cycle counts, material movement and daily totals. When combined with Cat Link technologies, detailed data can be accessed remotely to manage overall operations and keep production targets on track.

Model
Cat Payload for Excavators

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	Interface Options: Top-Bottom	Rotation Speed
TRS18 Tiltrotator: 605-4773	18-25	Pin-on / HCS70	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4774	18-25	Pin-on High Flow / HCS70	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4772	18-25	HCS70 / S70	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4771	18-25	HCS70 / HCS70	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4777	18-25	Pin-on / HCS70/55	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4778	18-25	Pin-on High Flow / HCS70/55	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4776	18-25	HCS70/55 / S70/55	7 seconds, per 1 full rotation
TRS18 Tiltrotator: 605-4775	18-25	HCS70/55 / HCS70/55	7 seconds, per 1 full rotation

Productivity

VisionLink® Productivity is a cloud-based application that is scalable to any size operation. Detailed Cat Production Measurement data, machine data and jobsite data are transmitted from the onboard Cat Product Link™ device directly to the web platform, for you to access wherever you are, via your mobile, tablet or desktop device.

Model
VisionLink® Productivity