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320 GC Hydraulic Excavator

320 GC Hydraulic Excavator

At a Glance

Net Power - ISO 9249
146 HP
Operating Weight
48281 lb
Maximum Digging Depth
22 ft
Engine Model
Cat C4.4e TA
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The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a new comfortable cab, reduced fuel consumption by up to 20%, and longer maintenance intervals reducing maintenance costs by up to 25% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.


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Net Power - ISO 9249 146HP
Engine Model Cat C4.4e TA
Engine Power - ISO 14396 148HP
Bore 4in
Stroke 5in
Displacement 269in³


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Operating Weight 48281lb

Working Ranges & Forces

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Maximum Digging Depth 22ft
Boom Reach 5.7 m (18.8)
Stick R2.9B1 (9'6")
Bucket 1.00 m³ (1.31 yd³)
Maximum Reach at Ground Level 32.3ft
Maximum Cutting Height 31ft
Maximum Loading Height 21.3ft
Minimum Loading Height 7.1ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.6ft
Maximum Vertical Wall Digging Depth 18.7ft
Bucket Digging Force - ISO 28935lbf
Stick Digging Force - ISO 22281lbf

Hydraulic System

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

Swing Mechanism

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

Service Refill Capacities

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Fuel Tank Capacity 86.6gal (US)
Cooling System 6.6gal (US)
Engine Oil 4gal (US)
Swing Drive - Each 3.2gal (US)
Final Drive - Each 1.1gal (US)
Hydraulic System - Including Tank 61.8gal (US)
Hydraulic Tank 30.4gal (US)
DEF Tank 10.3gal (US)


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Boom Reach 5.7 m (18'8")
Stick R2.9B1 (9'6")
Bucket 1.00 m³ (1.31 yd³)
Shipping Height - Top of Cab 9.7ft
Handrail Height 9.8ft
Shipping Length 31.3ft
Tail Swing Radius 9.3ft
Counterweight Clearance 3.4ft
Ground Clearance 1.5ft
Track Length 10.7ft
Length to Center of Rollers 12ft
Track Gauge 7.2ft
Transport Width 10.4ft