320 Hydraulic Excavator

320 Hydraulic Excavator

360° Exterior View

The 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, a new cab focused on operator comfort, ...
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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:

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