320 GC Hydraulic Excavator |

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Caterpillar

320 GC Hydraulic Excavator

Net Power - ISO 9249

146 hp

Operating Weight

48500 lb

Maximum Digging Depth

22 ft

Overview

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a comfortable cab, reduced fuel consumption, and longer maintenance intervals reducing maintenance costs to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.

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320 GC Medium Hydraulic Excavator
320 GC Medium Hydraulic Excavator
320 GC Medium Hydraulic Excavator
320 GC Medium Hydraulic Excavator
320 GC Medium Hydraulic Excavator
320 GC Medium Hydraulic Excavator

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Cat® Next Generation Excavators: Manufacturing
Cat® Next Generation Excavators: Design
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Features

Latest Features

Cab Monitor Improvements

Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
Smaller app tiles to view more apps in one screen.
When navigating the menu, scroll position will be remembered.
While menu is shown and lever is moved, camera view will be shown.
Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.

Not all features are available in all regions. Please check with your local Cat® dealer for specific offering availability in your area. Build Number: 07H

Performance with Less Fuel

Match the excavator to the job with power modes; let Smart mode automatically match engine and hydraulic power to digging conditions.
The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.
Valve priority puts hydraulic pressure and flow where you command it to go for fast light to medium load cycle times.
The engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards with an aftertreatment system that requires no operator input or downtime.
Add auxiliary hydraulics to do more work with a range of Cat® attachments.
Don't let the temperature stop you from working. The excavator has a standard high ambient temperature capability of 52º C (125º F) and cold start capability of -32º C (-25º F).

Lower Maintenance Costs

Expect lower maintenance costs compared to the 320F.
Do all daily maintenance at ground level.
Check engine oil level quickly and safely with the ground level engine oil dipstick; fill and check engine oil on top of the machine with a conveniently located second dipstick.
Track your excavator’s filter life and maintenance intervals via the in-cab monitor.
No required maintenance on the Cat® Clean Emissions Module.
Using Cat genuine oil and filters and doing your typical S∙O∙S^SM monitoring will extend the current service interval to 1,000 hours, giving you greater uptime to do more work.
The hydraulic oil filter provides high filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000 hour replacement interval.
The high-efficiency electric cooling fans only run when needed and reverse to keep cores free from debris.
Boost productivity with proactive service reminders. The integrated vehicle health management system alerts the operator with step-by-step service guidance along with parts needed so you don't experience any unnecessary downtime.
S·O·S ports simplify maintenance and allow for quick, easy extraction of samples for fluid analysis.

Reliability You Can Count On

Work up to 3000 m (9,840 ft) above sea level without de-rating.
Standard high-ambient temperature capability is 52º C (125º F) with cold start capability at –32º C (–25º F).
Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
Three levels of fuel filtration protect the engine from dirty diesel fuel.
Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
The center track guiding guard helps keep the excavator track aligned when traveling and working on slopes.
The sloped track frame prevents mud and debris accumulation, helping reduce risk of track damage.

Safely Home Every Day

Access 100% of daily maintenance points from ground level – no need for you to climb on top of the excavator.
Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push-button starting feature.
The standard ROPS cab meets ISO 12117-2:2008 requirements.
Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab posts and larger windows.
A rearview camera is standard, and a right-side-view camera is optional.
The latest right-hand service platform design provides easy, safe, and quick access to upper service platform; the service platform steps use anti-skid punch plate to prevent slipping.
The handrails comply with ISO 2867:2011 requirements.
The lower frame meets ISO 15818:2017 lifting and tie-down requirements.
Enhance jobsite safety. Add a swing alarm to alert people when you're rotating from trench to stockpile and back again.
Make service work easier and safer with optional inspection lighting. With the flip of a switch, lights will illuminate the engine, pump, battery, and radiator compartments to enhance visibility.

Simple to Operate

Start the engine with a push button; use a Bluetooth® key fob, or the unique Operator ID function.
Program each joystick button, including response and pattern, using Operator ID; it will also remember climate control fan and radio settings.
Navigate quickly on the standard high-resolution 203 mm (8 in) touchscreen monitor or with the aid of the jog dial control.
Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.
Protect your hammer tool from overheating and rapid wear. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds - all to extend the tool’s service life.
Not sure how a function works or how to maintain the excavator? Always have the operator’s manual at your fingertips in the touchscreen monitor.
The Cat® PL161 Attachment Locator is a Bluetooth device that makes finding your attachments and other gear quick and easy.

Designed for Operators

The Comfort cab has a wide seat that adjusts for operators of all sizes.
Control the excavator comfortably with easy-to-reach controls all located in front of you.
Standard automatic climate control keeps you at the right temperature all shift long.
Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are also provided.
Use the standard radio’s USB ports and Bluetooth® technology to connect to personal devices.

Take the Guesswork out of Managing Your Equipment

VisionLink® provides actionable data insights for all assets - regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Dashboards provide information such as hours, miles, location, idle time, and fuel utilization. Make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite.
VisionLink Productivity gathers and summarizes machine telematics and jobsite data from all your equipment – regardless of the manufacturer.* View actionable information such as idle time, fuel burn, location, payload, load counts, total cycles, and more to improve machine efficiency, productivity, and utilization. Access data anywhere via a mobile, tablet, or desktop device - on or off the jobsite.
Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.

* Data field availability can vary by equipment manufacturer.

Sustainability

The Cat® C4.4 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
The 320 GC emits lower CO₂emissions compared to the previous 320F ECO.
Cat 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 (hydrogenated 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.
VisionLink® displays the CO₂emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.
Auto Engine Speed Control helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
When engaged, one-touch idle helps operators conserve fuel and reduce greenhouse gas emissions by lowering engine speed when the machine is under no load and return to normal operating speed when desired.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cat Scheduled Oil Sampling (S·O·S) Services helps reveal excessive wear, contaminated fluids or other “unseen” issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine's operation and maintenance manual for more information.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
A well-trained operator is worth the investment. Skilled operators benefit your bottom line by maximizing productivity, avoiding costly downtime, and maintaining jobsite safety – which can help to improve fuel efficiency and reduce greenhouse gas.

*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
**Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

Sustainability

The Cat® C4.4 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
The 320 GC emits lower CO₂emissions compared to the previous 320F ECO.
Cat 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 (hydrogenated 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.
VisionLink® displays the CO₂emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.
Auto Engine Speed Control helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
When engaged, one-touch idle helps operators conserve fuel and reduce greenhouse gas emissions by lowering engine speed when the machine is under no load and return to normal operating speed when desired.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cat Scheduled Oil Sampling (S·O·S) Services helps reveal excessive wear, contaminated fluids or other “unseen” issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine's operation and maintenance manual for more information.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
A well-trained operator is worth the investment. Skilled operators benefit your bottom line by maximizing productivity, avoiding costly downtime, and maintaining jobsite safety – which can help to improve fuel efficiency and reduce greenhouse gas.

Specifications
Standard Equipment
Optional Equipment

Specifications

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
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.
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 (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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). *Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

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
Note (1)	For CE-marked machine default value may be set lower.
Maximum Swing Torque	54900 lbf·ft 74.4 kN·m

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.

Service Refill Capacities

Spec	Value
Fuel Tank Capacity	86.6 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 (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).

Sustainability

Spec Value

Recyclability 97% 97%

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)

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") Reach Bare stick

CAB

Operator Protective Guards (OPG)

CAT TECHNOLOGY

VisionLink Productivity

HYDRAULIC SYSTEM

SmartBoom™ (Europe only)

SAFETY AND SECURITY

Swing alarm
Inspection lighting

SERVICE AND MAINTENANCE

Refueling pump
QuickEvac™ maintenance ready

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

OTHER OPTIONAL CONFIGURATIONS

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