
Excavators
320 Hydraulic Excavator
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Engine Power172 HP
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Net Power172 HP
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Net Flywheel Power162 HP
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Engine ModelCat C4.4e TTA
Engine
- Engine Power
- 172 HP
- Net Power
- 172 HP
- Net Flywheel Power
- 162 HP
- Engine Model
- Cat C4.4e TTA
- Gross Power
- 164 HP
- Engine Power
- 173 HP
- Net Power
- 162 HP
- Bore
- 4 in
- Engine RPM
- 1650 r/min
- Stroke
- 5 in
- Engine RPM
- 1800 r/min
- Displacement
- 269 in³
Hydraulic System
- Main System
- 429 l/min (113 gal/min)
- Main System
- 113 gal/min
- Maximum Pressure
- 5075 psi
- Maximum Pressure
- 5075 psi
- Maximum Pressure
- 5510 psi
- Maximum Pressure
- 4974 psi
- Maximum Pressure
- 3988 psi
Weights
- Operating Weight
- 49600 lb
- Note
- Reach boom, R2.9 (9'6") stick, HD 1.19 m3 (1.56 yd3) bucket and 790 mm (31 in) triple grouser shoes, 4.2 mt (9,300 lb) counterweight
- Operating Weight
- 48300 lb
- Note
- Reach boom, R2.9 (9'6") stick, HD 1.19 m3 (1.56 yd3) bucket and 600 mm (24 in) triple grouser shoes, 4.2 mt (9,300 lb) counterweight
- Operating Weight
- 50265 lb
Swing Mechanism
- Maximum Swing Torque
- 60300 ft·lbf
Service Refill Capacities
- Fuel Tank Capacity
- 86.6 gal (US)
- Cooling System
- 6.6 gal (US)
- Engine Oil
- 4 gal (US)
- Swing Drive
- 3.2 gal (US)
- Final Drive
- 1.3 gal (US)
- Hydraulic System
- 61.8 gal (US)
- Hydraulic Tank
- 30.4 gal (US)
- DEF Tank
- 10.3 gal (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
- 9.8 ft
- Handrail Height
- 9.8 ft
- Shipping Length
- 31 ft
- Tail Swing Radius
- 9.3 ft
- Counterweight Clearance
- 3.4 ft
- Track Length to Center of Rollers
- 12 ft
- Ground Clearance
- 1.6 ft
- Track Length
- 14.7 ft
- Transport Width
- 9.8 ft
- Length to Center of Rollers
- 12 ft
- Track Gauge
- 7.9 ft
- Transport Width
- 10.4 ft
- Transport Width
- 9.8 ft
Working Ranges & Forces
- Maximum Digging Depth
- 22.1 ft
- 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
- 32.4 ft
- Maximum Cutting Height
- 30.8 ft
- Maximum Loading Height
- 21.4 ft
- Minimum Loading Height
- 7.1 ft
- Maximum Depth Cut for 2440 mm
- 21.5 ft
- Maximum Vertical Wall Digging Depth
- 17 ft
- Bucket Digging Force
- 38811 lbf
- Stick Digging Force
- 23911 lbf
- Bucket Digging Force
- 30104 lbf
- Stick Digging Force
- 23212 lbf
- Stick Digging Force
- 23212 lbf
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NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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CAB
- ROPS, sound suppression
- Mechanically adjustable seat
- High-resolution 203 mm (8 in) LCD touchscreen monitor
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CAT TECHNOLOGY
- Cat Product Link
- Cat GRADE with 2D
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CAT TECHNOLOGY
- Cat GRADE with Assist
- Cat PAYLOAD
- 2D E-Fence
- Lift Assist
- Auto Dig Boost
- Remote troubleshoot
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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
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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
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BOOM AND STICKS
- 5.7 m (18'8") reach boom, 2.9 m (9'6") stick
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UNDERCARRIAGE AND STRUCTURES
- Tie-down points on base frame
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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
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SERVICE AND MAINTENANCE
- Sampling ports for Scheduled Oil Sampling (S·O·S)
- Ground-level and platform-level engine oil dipsticks
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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
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NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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CAB
- Air-adjustable seat with heat (Deluxe only)
- High-resolution 254 mm (10 in) LCD touchscreen monitor
- Cat Stick Steer
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CAT TECHNOLOGY
- Cat GRADE with 3D
- Cat GRADE with Advanced 2D (not available on SLR)
- Cat GRADE with 3D (not available on SLR)
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SAFETY AND SECURITY
- Cat Command remote control
- Right-hand-side camera
- 360° visibility
- Inspection Lighting
- Cat Detect People Detection
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ENGINE
- 52°C (125°F) high-ambient cooling capacity
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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
- Auto Heavy Lift
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BOOM AND STICKS
- 8.85 m (29'0") SLR boom, 6.28 m (20'7") SLR stick
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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
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ELECTRICAL SYSTEM
- Premium surround lighting package