320 GC Hydraulic Excavator

Engine Model
Cat C4.4 ACERT
Net Flywheel Power
121 hp
Operating Weight- North America
48300 lb
Tail Swing Radius
9.3 ft

Engine

Engine Model
Cat C4.4 ACERT
Net Flywheel Power
121hp
Engine RPM - Operation
1650r/min
Engine RPM - Travel
2000r/min
Gross Power – SAE J1995
122hp
Net Power – SAE J1349
121hp
Bore
4in
Stroke
5in
Displacement
269in3
Engine rpm: Operation
1700rpm
Engine rpm: Travel
2000rpm
Net Power - ISO 9249
146HP
Engine Model
Cat C4.4e TA
Net Flywheel Power
143HP
Bore
4in
Stroke
5in
Displacement
269in³
Gross Power - SAE J1995
145HP
Net Power - SAE J1349
143HP
Engine Power - ISO 14396
148HP

Weights

Operating Weight- North America
48300lb
Operating Weight
48300lb
Note (2)
Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 700mm(28 ") TG shoes, Counterweight (4.2mt / 9,260lb)
Note
Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 790mm(31 ") TG shoes, Counterweight (4.2mt / 9,260lb)
Operating Weight - Europe
46958lb
Note
Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 700mm(28 ") TG shoes, Counterweight (4.2mt / 9,260lb)
Note (1)
Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 790mm(31 ") TG shoes, Counterweight (4.2mt / 9,260lb)
Operating Weight - North America
48281lb

Dimensions - Reach Boom - 5.7 m (18'8

Tail Swing Radius
9.3ft
Ground Clearance
1.5ft

Hydraulic System

Maximum Pressure - Equipment
5075psi
Main System – Maximum Flow (Total)
116gal/min
Maximum Pressure - Equipment - Normal
5075psi
Maximum Pressure – Travel
4974psi
Maximum Pressure – Swing
3886psi
Main System - Maximum Flow - Total
116gal/min
Maximum Pressure - Swing
3625psi
Maximum Pressure - Travel
4974psi
Main System - Maximum Flow
442 l/min (116 gal/min)

Drive

Maximum Gradeability
35°--70%
Maximum gradeability
35°--70%
Maximum Travel Speed
3.6mph
Maximum Drawbar Pull
46131lbf
Maximum Drawbar Pull
46131lbf
Maximum Travel Speed
3.6mile/h

Swing Mechanism

Swing Speed
11.6r/min
Maximum Swing Torque
54900ft·lbf

Dimensions

Shipping Length
31.3ft
Tail Swing Radius
9.3ft
Counterweight Clearance
3.4ft
Ground Clearance
1.5ft
Track Length
14.7ft
Track Gauge
7.9ft
Transport Width
10.4ft

Working Ranges - Reach Boom - 5.7 m (18'8

Maximum Cutting Height
31ft
Maximum Digging Depth
22ft
Maximum Loading Height
21.3ft
Maximum Reach - Ground Level
32.3ft
Maximum Vertical Wall Digging Depth
18.7ft
Minimum Loading Height
7.1ft

Dimensions

Maximum Depth Cut for 2440 mm (8'0") Level Bottom
21.5ft

Working Ranges - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Bucket Digging Force (ISO)
28935
Bucket Digging Force (SAE)
25759
Stick Digging Force (ISO)
22281
Stick Digging Force (SAE)
21678
Bucket Digging Force (ISO)
21678lbf

Swing

Swing Speed
11.6rpm
Maximum Swing Torque
54440lbf-ft
Maximum Swing Torque
54440ft·lbf
Swing Speed
11.6r/min

Service Refill Capacities

Fuel Tank Capacity
96.2gal
Cooling System
6.6gal
Engine Oil
4.0gal
Swing Drive (each)
1.3gal
Final Drive (each)
1.3gal
Hydraulic System (including tank)
57.6gal
Hydraulic Tank
30.4gal
DEF Tank
7.9gal
Fuel Tank Capacity
86.6gal (US)
Cooling System
6.6gal (US)
Engine Oil
4gal (US)
Final Drive - Each
1.1gal (US)
Hydraulic System - Including Tank
61.8gal (US)
Hydraulic Tank
30.4gal (US)
DEF Tank
10.3gal (US)
Swing Drive - Each
3.2gal (US)

Dimensions: Reach Boom 5.7 m (18'8"); R2.9 (9'6") Stick

Shipping Height
10.2ft
Shipping Length
31.3ft
Track Length-Length to Center of Rollers
10.7ft
Track Gauge
7.2ft
Transport Width: 790 mm (31 in) Shoes
10.4ft
Counterweight Clearance
3.4ft
Note
With HD 1.0m3 bucket and 790 mm shoes.

Dimensions: Reach Boom 5.7 m (18'8"); R2.9 (9'6") Stick

Tail Swing Radius
9.3ft
Ground Clearance
1.5ft

Working Ranges: Reach Boom 5.7 m (18'8"); R2.9 (9'6") Stick

Maximum Digging Depth
22ft
Maximum Reach at Ground Level
32.3ft
Maximum Cutting Height
31.0ft
Maximum Loading Height
21.3ft
Minimum Loading Height
7.1ft
Maximum Depth Cut for 2440 mm (8'0") Level Bottom
21.5ft
Maximum Vertical Wall Digging Depth
18.7ft

Dimensions - Reach Boom - 5.7 m (18'8

Counterweight Clearance
3.4ft
Note
With HD 1.0m3 bucket and 790 mm shoes.
Shipping Height
9.7ft
Shipping Length
31.3ft
Track Gauge
7.2ft
Track Length - Center of Rollers
10.7ft
Transport Width - 790 mm (31 in) Shoes
10.4ft

Working Ranges & Forces

Stick Digging Force - ISO
22281lbf

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Boom And Sticks
    • 5.7 m (18'8") Reach boom
  • Cab
    • Rollover protective structure (ROPS)
    • Mechanical-suspension seat
    • High-resolution 203 mm (8 inch) LCD touchscreen monitor
  • Cat Technology
    • Cat Product Link
    • Remote Flash
    • Remote Troubleshoot
    • Auto hammer stop
  • Electrical
    • Two 1,000 CCA maintenance-free batteries
    • Programmable time-delay LED working lights
    • LED chassis light, left-hand/right-hand boom lights, cab lights
  • Engine
    • Cat C4.4 single turbo engine
    • Two selectable power modes
    • Auto engine speed control
    • Auto engine idle shutdown
    • 52° C (125° F) high-ambient cooling capacity
    • -32° C (-25° F) cold start capability
    • Double element air filter with integrated pre-cleaner
    • Reversible electric cooling fans
  • Hydraulic System
    • Boom and stick regeneration circuits
    • Boom and stick lowering check valves
    • Auto warm up
    • Auto two-speed travel
    • Boom and stick drift reduction valve
    • Slider joysticks
    • Tool control (two pumps, one/two way high-pressure flow)
  • Safety And Security
    • Rearview and right-hand-sideview cameras
    • Ground-level engine shutoff switch
    • Right-hand handrail and hand hold
    • Signaling/warning horn
  • Service And Maintenance
    • Sampling ports for Scheduled Oil Sampling (S·O·S)
    • Ground-level and platform-level engine oil dipsticks
  • Undercarriage And Structures
    • Tie-down points on base frame
    • 3700 kg (8,160 lb) counterweight (Turkey only)
    • 4200 kg (9,300 lb) counterweight

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Boom And Sticks
    • 2.9 m (9'6") Reach stick
    • 2.5 m (8'2") Reach stick
    • 2.9 m (9'6") Semi-HD Reach stick
    • 2.5 m (8'2") Semi-HD Reach stick
  • Safety And Security
    • Swing alarm
    • Inspection lighting
  • Service And Maintenance
    • Integrated vehicle health management system
  • 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