320 Hydraulic Excavator
320 Hydraulic Excavator
The Cat® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, a cab focused on operator comfort, plus low fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.
Net Power - ISO 9249
172hp
Net Power - ISO 9249 (DIN)
175hp (metric)
Engine Model
Cat C4.4
Engine Power - ISO 14396:2002
174hp
Engine Power - ISO 14396 (DIN)
176hp (metric)
Bore
4in
Stroke
5in
Displacement
269in³
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time
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
Operating Weight
49800lb
Note
Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m ³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight.
Maximum Digging Depth
22ft
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
32.3ft
Maximum Cutting Height
30.7ft
Maximum Loading Height
21.3ft
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
Main System - Maximum Flow
429 l/min (113 gal/min)
Maximum Pressure - Equipment
5075psi
Maximum Pressure - Travel
4974psi
Maximum Pressure - Swing
3988psi
Maximum Swing Torque
60300ft·lbf
Fuel Tank Capacity
86.6gal (US)
Cooling System
6.6gal (US)
Engine Oil
4gal (US)
Swing Drive - Each
1.6gal (US)
Final Drive - Each
1.1gal (US)
Hydraulic System - Including Tank
61.8gal (US)
Hydraulic Tank
30.4gal (US)
DEF Tank
10.3gal (US)
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
9.7ft
Handrail Height
9.7ft
Shipping Length
31.3ft
Tail Swing Radius
9.3ft
Counterweight Clearance
3.4ft
Ground Clearance
1.5ft
Track Length
14.6ft
Length to Center of Rollers
11.7ft
Track Gauge
7.8ft
Transport Width
9.8ft
Air Conditioning
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).
Recyclability
97%
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- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Booms And Sticks
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- 5.7 m (18'8") Reach boom
- 5.7 m (18'8") HD Reach boom
- 2.8 m (9'2") Stub + 3.3 m (10'10") Fore, VA boom
- 8.85 m (29'0") Super Long Reach boom
- 2.5 m (8'2") Reach stick
- 2.9 m (9'6") Reach stick
- 2.5 m (8'2") HD Reach stick
- 2.9 m (9'6") HD Reach stick
- 2.9 m (9'6") HD Thumb Ready Reach stick
- 6.28 m (20'7") Super Long Reach stick
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- Cab
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- Cat Stick Steer
- Auxiliary relay
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- Cat Technology
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- VisionLink Productivity
- Cat Grade Connectivity
- Cat Grade 2D with Attachment Ready Option (ARO)
- Cat Grade 3D single GNSS
- Cat Grade 3D dual GNSS
- Cat Tilt Rotator (TRS) Integration
- Operator Coaching
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- Hydraulic System
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- Boom and stick lowering check valves
- SmartBoom™ (Europe only)
- Hammer return filter circuit
- Hydraulic efficiency monitoring
- Advanced tool control (two pump, one/two way high-pressure flow)
- Medium-pressure circuit
- Quick coupler circuit for Cat pin grabber
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- Safety And Security
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- Cat Command (remote control)
- 360° visibility
- Swing alarm
- Inspection lighting
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- Undercarriage And Structures
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- 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
- 4700 kg (10,400 lb) counterweight
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Cab
-
- Rollover protective structure (ROPS)
- Air-adjustable seat with heat (Deluxe only)
- Auto-adjustable seat with heat and air ventilation (Premium only)
- High-resolution 254 mm (10 inch) LCD touchscreen monitor
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- Cat Technology
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- VisionLink®
- Remote Flash
- Remote Troubleshoot
- Cat Grade 2D
- Cat Assist
- Cat Payload
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- Electrical System
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- Two 1,000 CCA maintenance-free batteries
- Programmable time-delay LED working lights
- LED chassis light, left-hand/right-hand boom lights, cab lights
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- Engine
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- Cat C4.4 twin turbo diesel engine
- Three selectable power modes
- Automatic engine speed control
- 52°C (126°F) ambient cooling capacity
- -32°C (-25°F) cold start capability
- Double element air filter with integrated precleaner
- Reversing electric cooling fans
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- Hydraulic System
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- Boom and stick regeneration circuits
- Auto warm up
- Auto two-speed travel
- Auto dig boost
- Boom and stick drift reduction valve
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- Safety And Security
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- 2D E-Fence
- Auto hammer stop
- Rearview and right-side-view cameras
- Ground-level engine shutoff switch
- Lockable disconnect switch
- Right-hand handrail and hand hold
- Signaling/warning horn
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- Service And Maintenance
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- Scheduled Oil Sampling (S·O·S℠) ports
- Ground-level and platform-level engine oil dipsticks
- Integrated vehicle health management system
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- Undercarriage And Structures
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- Tie-down points on base frame
