LATEST FEATURES
Main content
Caterpillar
M320 Wheeled Excavator
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
Overview
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.
Media
Photos
Videos
360° View
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.
Features
HIGH PERFORMANCE WITH LOWER FUEL CONSUMPTION
WORK IN COMFORT
LOWER MAINTENANCE COSTS
SIMPLE TO OPERATE
SAFETY
Boost Efficiency and Productivity with Integrated Cat Technologies
Sustainability
Details
Specifications
Engine
| Spec | Value |
|---|---|
| Engine Power – ISO 14396:2002 | 174 hp 129.4 kW |
| Engine Power – ISO 14396 (DIN) | 176 hp (metric) 176 hp (metric) |
| Engine Model | C4.4 C4.4 |
| Net Power – ISO 9249 | 171 hp 127.8 kW |
| Net Power – ISO 9249 (DIN) | 174 hp (metric) 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 Up to B20¹ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. 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. 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. 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
| 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 – Equipment | 5366 psi 37000 kPa |
| Maximum Pressure – Swing | 5729 gal/min 39500 kPa |
| Maximum Pressure – Travel | 5076 gal/min 35000 kPa |
Machine Weight
| Spec | Value |
|---|---|
| Operating Weight Maximum | 46740 lb 21200 kg |
| Operating Weight Minimum | 41450 lb 18800 kg |
Service Refill Capacities
| Spec | Value |
|---|---|
| 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
| Spec | Value |
|---|---|
| Boom | 5260 mm (17'3") 5260 mm (17'3") |
| Bucket | 0.98 m³ GD (1.28 yd³) 0.98 m³ GD (1.28 yd³) |
| Stick | 2.5 m (8' 2") 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
| Spec | Value |
|---|---|
| Boom Type | VA Boom VA Boom |
| Bucket | 0.98 m³ GD (1.28 yd³) 0.98 m³ GD (1.28 yd³) |
| Stick | 2.5 m (8' 2") 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"). 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
| Spec | Value |
|---|---|
| Swing Speed | 9.2 r/min 9.2 r/min |
| Maximum Swing Torque | 37000 ft·lbf 50 kN·m |
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 of refrigerant which has a CO2 equivalent of 1.216 metric tonnes. 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