Caterpillar

320 GC Hydraulic Excavator

Name: 320 GC Hydraulic Excavator
Brand: Caterpillar

Net Power – ISO 9249

146 hp

109 kW

Operating Weight

48500 lb

22000 kg

Maximum Digging Depth

22 ft

6720 mm

Overview

The Cat® 320 GC provides reliable digging power with fewer fuel stops and longer service intervals. Designed for general duty applications, it reduces ownership costs with its simple operation and durable structure.

Media

Cat® Next Generation Excavators: Vision

Cat® Next Generation Excavators: Manufacturing

Cat® Next Generation Excavators: Design

Stick Steer for Cat® Excavators

Exterior

360° exterior view. Double click on the image to zoom in on any area of the product.

Interior

360° interior view. Double click on the image to zoom in on any area of the product.

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Features

Latest Features

Performance with Less Fuel

Lower Maintenance Costs

Reliability You Can Count On

Safely Home Every Day

Simple to Operate

Designed for Operators

Take the Guesswork out of Managing Your Equipment

Attachments

Sustainability

Specifications

US Metric

Engine

Spec	Value
Net Power – ISO 9249	146 hp 109 kW
Net Power – ISO 9249 (DIN)	148 hp (metric) 148 hp (metric)
Engine Model	Cat® C4.4 Cat® C4.4
Engine Power – ISO 14396	148 hp 110.1 kW
Engine Power – ISO 14396 (DIN)	150 hp (metric) 150 hp (metric)
Bore	4 in 105 mm
Stroke	5 in 127 mm
Displacement	269 in³ 4.4 l
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards 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 of manufacture. 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 of manufacture.
Note (2)	¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible with ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. **Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).

Hydraulic System

Spec	Value
Main System – Maximum Flow	442 l/min (117 gal/min) 442 l/min (117 gal/min)
Maximum Pressure – Equipment	5075 psi 35000 kPa
Maximum Pressure – Travel	4974 psi 34300 kPa
Maximum Pressure – Swing	3625 psi 25000 kPa

Swing Mechanism

Spec	Value
Swing Speed*	11.6 r/min 11.6 r/min
Maximum Swing Torque	54900 lbf·ft 74.4 kN·m
Note (1)	For CE-marked machine default value may be set lower. For CE-marked machine default value may be set lower.

Weights

Spec	Value
Operating Weight	48500 lb 22000 kg
Note	Long undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1.0 m³ (1.31 yd³) bucket, 700 mm (28 in) triple grouser shoes and 4200 kg (9,300 lb) counterweight. Long undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1.0 m³ (1.31 yd³) bucket, 700 mm (28 in) triple grouser shoes and 4200 kg (9,300 lb) counterweight.

Service Refill Capacities

Spec	Value
Fuel Tank Capacity	91.1 gal (US) 345 l
Cooling System	6.6 gal (US) 25 l
Engine Oil	4 gal (US) 15 l
Swing Drive	3.2 gal (US) 12 l
Final Drive – Each	1.1 gal (US) 4 l
Hydraulic System – Including Tank	61.8 gal (US) 234 l
Hydraulic Tank	30.4 gal (US) 115 l
DEF Tank	10.3 gal (US) 39 l

Dimensions

Spec	Value
Boom	Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	GD 1.0 m³ (1.31 yd³) GD 1.0 m³ (1.31 yd³)
Shipping Height – Top of Cab	9.7 ft 2960 mm
Handrail Height	9.8 ft 2950 mm
Shipping Length	31.3 ft 9530 mm
Tail Swing Radius	9.3 ft 2830 mm
Counterweight Clearance	3.4 ft 1050 mm
Ground Clearance	1.5 ft 470 mm
Track Length	14.7 ft 4450 mm
Length to Center of Rollers	11.11 ft 3650 mm
Track Gauge	7.9 ft 2380 mm
Transport Width	10.4 ft 3170 mm

Working Ranges and Forces

Spec	Value
Maximum Digging Depth	22 ft 6720 mm
Boom	Reach 5.7 m (18.8) Reach 5.7 m (18.8)
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	GD 1.0 m³ (1.31 yd³) GD 1.0 m³ (1.31 yd³)
Maximum Reach at Ground Level	32.3 ft 9860 mm
Maximum Cutting Height	31 ft 9450 mm
Maximum Loading Height	21.3 ft 6490 mm
Minimum Loading Height	7.1 ft 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.6 ft 6550 mm
Maximum Vertical Wall Digging Depth	18.7 ft 5690 mm
Bucket Digging Force – ISO	28935 lbf 129 kN
Stick Digging Force – ISO	22281 lbf 99 kN

Air Conditioning System

Spec	Value
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with 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). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.75 kg (1.7 lb) of refrigerant which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with 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). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.75 kg (1.7 lb) of refrigerant which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons).

Sustainability

Spec	Value
Recyclability	97% 97%

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

Air-suspension seat (Europe, North America only)
Mechanical-suspension seat (Chile, Colombia, Türkiye only)
Rollover Protective Structure (ROPS)
High-resolution 203 mm (8 inch) LCD touchscreen monitor

CAT TECHNOLOGY

VisionLink™
Remote Flash

ELECTRICAL

Two 1,000 CCA maintenance-free batteries
Centralized electrical disconnect switch
Programmable time-delay LED working lights
LED chassis light, 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
Lockable disconnect switch
Right-hand handrail and hand hold
Signaling/warning horn

SERVICE AND MAINTENANCE

Scheduled Oil Sampling (S·O·S℠) ports
Ground-level and platform-level engine oil dipsticks
Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

Long undercarriage (Europe, North America, Türkiye standard; Chile optional; Columbia not available)
Medium undercarriage (Colombia standard; Chile optional; Europe, North America, Türkiye not available)
Tie-down points on base frame
3700 kg (8,160 lb) counterweight (Chile, Colombia, Türkiye only)
4200 kg (9,300 lb) counterweight (Europe, North America only)