320 Hydraulic Excavator
360° Exterior View
360° Interior View
At a Glance
Overview
The Cat® 320 excavator brings premium performance with simple-to-use technologies like Cat GRADE with 2D, Grade Assist, and Payload – all standard equipment from the factory to boost your operator efficiencies up to 45%. Combine these features with a new cab, longer maintenance intervals that lower your maintenance costs up to 15%, and a power system that reduces fuel consumption by up to 25% and you have a low-cost-per-unit-of-production excavator that’s perfect for medium- to heavy-duty applications.
Engine
+ -| Net Power - ISO 9249 | 172HP |
| Engine Model | Cat C4.4e TTA |
| Engine Power - ISO 14396 | 173HP |
| Bore | 4in |
| Stroke | 5in |
| Displacement | 269in³ |
Weights
+ -| Operating Weight | 50265lb |
Working Ranges & Forces
+ -| Maximum Digging Depth | 22.1ft |
| Boom | Reach 5.7 m (18'8") |
| Stick | Reach 2.9 m (9'6") |
| Bucket | 1.19 m ³ (1.56 yd³) |
| Maximum Reach at Ground Level | 32.4ft |
| Maximum Cutting Height | 30.8ft |
| Maximum Loading Height | 21.4ft |
| Minimum Loading Height | 7.1ft |
| Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 21.5ft |
| Maximum Vertical Wall Digging Depth | 17ft |
| Bucket Digging Force - ISO | 38811lbf |
| Stick Digging Force - ISO | 23911lbf |
Hydraulic System
+ -| Main System - Maximum Flow | 429 l/min (113 gal/min) |
| Maximum Pressure - Equipment | 5075psi |
| Maximum Pressure - Travel | 4974psi |
| Maximum Pressure - Swing | 3988psi |
Swing Mechanism
+ -| Maximum Swing Torque | 60300ft·lbf |
Service Refill Capacities
+ -| Fuel Tank Capacity | 86.6gal (US) |
| Cooling System | 6.6gal (US) |
| Engine Oil | 4gal (US) |
| Swing Drive - Each | 3.2gal (US) |
| Final Drive - Each | 1.3gal (US) |
| Hydraulic System - Including Tank | 61.8gal (US) |
| Hydraulic Tank | 30.4gal (US) |
| DEF Tank | 10.3gal (US) |
Dimensions
+ -| Boom | Reach 5.7 m (18'8") |
| Stick | Reach 2.9 m (9'6") |
| Bucket | 1.19 m ³ (1.56 yd³) |
| Shipping Height - Top of Cab | 9.8ft |
| Handrail Height | 9.8ft |
| Shipping Length | 31ft |
| Tail Swing Radius | 9.3ft |
| Counterweight Clearance | 3.4ft |
| Ground Clearance | 1.6ft |
| Track Length | 14.7ft |
| Length to Center of Rollers | 12ft |
| Track Gauge | 7.9ft |
| Transport Width | 9.8ft |
Standard Equipment:
Note
+ -Standard and optional equipment may vary. Consult your Cat dealer for details.
Cab
+ -ROPS, sound suppression
Mechanically adjustable seat
High-resolution 203 mm (8 in) LCD touchscreen monitor
Cat Technology
+ -Cat Product Link
Cat GRADE with 2D
Cat Technology
+ -Cat GRADE with Assist
Cat PAYLOAD
2D E-Fence
Lift Assist
Auto Dig Boost
Remote troubleshoot
Engine
+ -Three selectable power modes
Auto engine speed control
52°C (126°F) ambient cooling capacity
-32°C (-25°F) cold start capability
Reversing electric cooling fans
Biodiesel capability up to B20
Hydraulic System
+ -Boom and stick regeneration circuits
Slide joysticks
Auto hydraulic warm up
Auto two-speed travel
Boom and stick drift reduction valve
Advanced tool control - Europe only
Boom And Sticks
+ -5.7 m (18'8") reach boom, 2.9 m (9'6") stick
Undercarriage And Structures
+ -Tie-down points on base frame
Electrical System
+ -Two 1,000 CCA maintenance-free batteries
Programmable time-delay LED working lights
LED chassis light, left-hand/right-hand boom lights, cab lights
Service And Maintenance
+ -Sampling ports for Scheduled Oil Sampling (S·O·S)
Ground-level and platform-level engine oil dipsticks
Safety And Security
+ -Rear and right-hand-sideview cameras
Signaling/warning horn
Right-hand mirror
Ground-level engine shutoff switch
Right-hand handrail and hand hold
Signaling/warning horn
Optional Equipment:
Note
+ -Standard and optional equipment may vary. Consult your Cat dealer for details.
Cab
+ -Air-adjustable seat with heat (Deluxe only)
High-resolution 254 mm (10 in) LCD touchscreen monitor
Cat Technology
+ -Cat GRADE with 3D
Cat GRADE with Advanced 2D (not available on SLR)
Cat GRADE with 3D (not available on SLR)
Safety And Security
+ -Cat Command remote control
Right-hand-side camera
360° visibility
Engine
+ -52°C (125°F) high-ambient cooling capacity
Hydraulic System
+ -Boom and stick lowering check valves
Hammer return filter circuit
Combined flow/high-pressure auxiliary circuit
Medium-pressure circuit
Quick coupler circuit for Cat Pin Grabber
Boom And Sticks
+ -8.85 m (29'0") SLR boom, 6.28 m (20'7") SLR stick
Undercarriage And Structures
+ -600 mm (24") triple grouser shoes
700 mm (28") triple grouser shoes
790 mm (31") triple grouser shoes
900 mm (35") triple grouser shoes
4200 kg (9,300 lb) counterweight for HD boom and stick
Electrical System
+ -Premium surround lighting package
HD Bucket 1050 mm (42 in)
HD Bucket 900 mm (36 in)
HD Bucket 600 mm (24 in)
GD Bucket 900 mm (36 in)
GD Bucket 600 mm (24 in)
H120 GC S Hammer
65″, 5-tine rake for B linkage machines
49″, 4-tine rake for B linkage machine
33″, 3-tine hex rake for B linkage machines
S2050 Straight Scrap & Demolition Shear
P215 Pulverizer
MP318 Universal Jaw
MP318 Shear Jaw
MP318 Pulverizer Jaw
MP318 Demolition Jaw
H130 S Hydraulic Hammer
H120 S Hydraulic Hammer
H115 S Hammer
Trash Grapple, 319/320/321 Excavators
