320 GC - Tier 3

Medium Excavators 320 GC - Tier 3

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Key Specs

Net Power - ISO 9249: 143 hp; 107 kW

Operating Weight: 45000 lb; 20400 kg

Maximum Digging Depth: 21.8 ft; 6630 mm

320 GC - Tier 3

320 GC - Tier 3
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Overview

RELIABLE. COMFORTABLE. PRODUCTIVE.

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a comfortable cab, reduced fuel consumption by up to 20%, and longer maintenance intervals reducing maintenance costs by up to 20% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.

Benefits

Up To 20% Less Fuel Consumption

A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.

Improved Reliability and Efficiency

An advanced electro-hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.

Up To 20% Lower Maintenance Costs

With extended and more synchronized maintenance intervals, you get more done at a lower cost compared to the previous model.

Features At A Glance

LATEST FEATURES

Cab Monitor Improvements

Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
Identify apps quickly with a grid list view, abbreviated app names, and categorized menu options.
A notification center keeps important information visible to the operator, and displays messages without shrinking the camera view.
Color coded notifications set critical messages apart from the rest.
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: 07G

PERFORMANCE WITH LESS FUEL

The excavator uses up to 20% less fuel than the 320D2 GC in similar applications.
Match the excavator to the job using power modes; let Smart mode automatically match engine and hydraulic power to your 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.
Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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 up to 20% less maintenance cost than the 320D2 GC (savings calculated over 12,000 machine hours).
Do all daily maintenance at ground level.
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.
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 monitoring will double the current service interval to 1,000 hours, giving you greater uptime to do more work.
The latest hydraulic oil filter provides improved filtration performance,anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000 hour replacement interval – 50% longer than previous filter designs.
The high-efficiency electric cooling fans only run when needed and reverse to keep cores free from debris.
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 pushbutton 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 rear view 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.
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.

WORK IN COMFORT

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.
Advanced viscous mounts reduce cab vibration by up to 50% over previous excavator models.
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 manufacture.* 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.

FORESTRY CONFIGURATION

The Cat 320 GC Forestry Configuration provides premium performance and operating efficiency.
The Cat C4.4 engine lowers fuel consumption
Longer maintenance intervals help reduce operating costs.
The Severe Duty undercarriage features an 8-roller bottom, double supported carrier rollers, and 600 mm double grouser track shoes.
The ROPS comfort cab is fitted with 19 mm (3/4") polycarbonate front window and 13 mm (1/2") side polycarbonate side windows.
Enjoy great visibility to the stem, in each swing direction, and behind you with the help of smaller cab pillars, larger windows, and a flat engine hood design.

The forestry configuration is available in Brazil only.

Specifications Standard Equipment Optional Equipment

Product Specifications for 320 GC - Tier 3

Engine

Net Power - ISO 9249	143 hp 107 kW
Engine Model	Cat C4.4 Cat C4.4
Engine Power - ISO 14396:2002	145 hp 108 kW
Engine Power - ISO 14396 (DIN)	147 hp (metric) 147 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 Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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 2,000 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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. 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. ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels* up to: 100% 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. 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

Main System - Maximum Flow	429 l/min (113 gal/min) 429 l/min (113 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

Swing Speed	11.25 r/min 11.25 r/min
Maximum Swing Torque	54900 ft·lbf 74.4 kN·m

Weights

Operating Weight	45000 lb 20400 kg
Note	Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes and 3700 kg (8,200 lb) counterweight. Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes and 3700 kg (8,200 lb) counterweight.

Service Refill Capacities

Fuel Tank Capacity	86.6 gal (US) 345 l
Cooling System	6.6 gal (US) 25 l
Engine Oil	4 gal (US) 15 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

Dimensions

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	1 m³ (1.31 yd³) 1 m³ (1.31 yd³)
Shipping Height - Top of Cab	9.9 ft 2960 mm
Shipping Length	31.3 ft 9530 mm
Tail Swing Radius	9.3 ft 2830 mm
Counterweight Clearance	3.5 ft 1050 mm
Ground Clearance	1.7 ft 470 mm
Track Length	13.11 ft 4250 mm
Length to Center of Rollers	11.4 ft 3450 mm
Track Gauge	7.9 ft 2380 mm
Transport Width	9.9 ft 2980 mm

Working Ranges and Forces

Maximum Digging Depth	21.8 ft 6630 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	1 m³ (1.31 yd³) 1 m³ (1.31 yd³)
Maximum Reach at Ground Level	32 ft 9770 mm
Maximum Cutting Height	31 ft 9440 mm
Maximum Loading Height	21.5 ft 6580 mm
Minimum Loading Height	7.4 ft 2260 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.2 ft 6460 mm
Maximum Vertical Wall Digging Depth	19.7 ft 6010 mm
Bucket Digging Force - ISO	29007 lbf 129 kN
Stick Digging Force - ISO	22301 lbf 99 kN

320 GC - Tier 3 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

2.9 m (9'6") Reach stick

CAB

Rollover protective structure (ROPS)

Mechanical-suspension seat

High-resolution 203 mm (8 in) LCD touchscreen monitor

CAT TECHNOLOGY

VisionLink®

Remote Flash

ELECTRICAL SYSTEM

Two 1,000 CCA maintenance-free batteries

Programmable time-delay LED working lights

LED chassis light, left-hand boom lights

ENGINE

Cat C4.4 single turbo diesel 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 precleaner

Reversing electric cooling fans

HYDRAULIC SYSTEM

Boom and stick regeneration circuits

Auto two-speed travel

Boom and stick drift reduction valve

Three button joysticks

SAFETY AND SECURITY

Auto hammer stop

Rearview camera

Right-hand-side mirror

Ground-level engine shutoff switch

Lockable disconnect switch

Right-hand handrail and hand hold

Signaling/warning horn

SERVICE AND MAINTENANCE

Integrated vehicle health management system

Scheduled Oil Sampling (S·O·S℠) ports

Ground- and platform-level engine oil dipsticks

UNDERCARRIAGE AND STRUCTURES

600 mm (24") triple grouser shoes

Tie-down points on base frame

3700 kg (8,150 lb) counterweight

320 GC - Tier 3 Optional Equipment

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

CAT TECHNOLOGY

VisionLink Productivity

ELECTRICAL SYSTEM

LED chassis light, left-hand/right-hand boom lights, cab lights

HYDRAULIC SYSTEM

Auto warm up

Hammer return filter circuit

Slider joysticks

Tool Control (two pump, one/two way high-pressure flow)

Basic Tool Control (one pump, one way high-pressure flow)

Quick coupler circuit

SAFETY AND SECURITY

Right-side-view camera

Swing alarm

Inspection lighting

UNDERCARRIAGE AND STRUCTURES

790 mm (31") triple grouser shoes

OTHER OPTIONAL CONFIGURATIONS

Forestry (Brazil only)

Product Specifications for 320 GC - Tier 3

Download Print

Engine

Net Power - ISO 9249	143 hp 107 kW
Engine Model	Cat C4.4 Cat C4.4
Engine Power - ISO 14396:2002	145 hp 108 kW
Engine Power - ISO 14396 (DIN)	147 hp (metric) 147 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 Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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 2,000 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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. 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. ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels* up to: 100% 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. 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

Main System - Maximum Flow	429 l/min (113 gal/min) 429 l/min (113 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

Swing Speed	11.25 r/min 11.25 r/min
Maximum Swing Torque	54900 ft·lbf 74.4 kN·m

Weights

Operating Weight	45000 lb 20400 kg
Note	Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes and 3700 kg (8,200 lb) counterweight. Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes and 3700 kg (8,200 lb) counterweight.

Service Refill Capacities

Fuel Tank Capacity	86.6 gal (US) 345 l
Cooling System	6.6 gal (US) 25 l
Engine Oil	4 gal (US) 15 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

Dimensions

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	1 m³ (1.31 yd³) 1 m³ (1.31 yd³)
Shipping Height - Top of Cab	9.9 ft 2960 mm
Shipping Length	31.3 ft 9530 mm
Tail Swing Radius	9.3 ft 2830 mm
Counterweight Clearance	3.5 ft 1050 mm
Ground Clearance	1.7 ft 470 mm
Track Length	13.11 ft 4250 mm
Length to Center of Rollers	11.4 ft 3450 mm
Track Gauge	7.9 ft 2380 mm
Transport Width	9.9 ft 2980 mm

Working Ranges and Forces

Maximum Digging Depth	21.8 ft 6630 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	1 m³ (1.31 yd³) 1 m³ (1.31 yd³)
Maximum Reach at Ground Level	32 ft 9770 mm
Maximum Cutting Height	31 ft 9440 mm
Maximum Loading Height	21.5 ft 6580 mm
Minimum Loading Height	7.4 ft 2260 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.2 ft 6460 mm
Maximum Vertical Wall Digging Depth	19.7 ft 6010 mm
Bucket Digging Force - ISO	29007 lbf 129 kN
Stick Digging Force - ISO	22301 lbf 99 kN

320 GC - Tier 3 Standard Equipment

Print

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOM AND STICKS

5.7 m (18'8") Reach boom

2.9 m (9'6") Reach stick

CAB

Rollover protective structure (ROPS)

Mechanical-suspension seat

High-resolution 203 mm (8 in) LCD touchscreen monitor

CAT TECHNOLOGY

VisionLink®

Remote Flash

ELECTRICAL SYSTEM

Two 1,000 CCA maintenance-free batteries

Programmable time-delay LED working lights

LED chassis light, left-hand boom lights

ENGINE

Cat C4.4 single turbo diesel 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 precleaner

Reversing electric cooling fans

HYDRAULIC SYSTEM

Boom and stick regeneration circuits

Auto two-speed travel

Boom and stick drift reduction valve

Three button joysticks

SAFETY AND SECURITY

Auto hammer stop

Rearview camera

Right-hand-side mirror

Ground-level engine shutoff switch

Lockable disconnect switch

Right-hand handrail and hand hold

Signaling/warning horn

SERVICE AND MAINTENANCE

Integrated vehicle health management system

Scheduled Oil Sampling (S·O·S℠) ports

Ground- and platform-level engine oil dipsticks

UNDERCARRIAGE AND STRUCTURES

600 mm (24") triple grouser shoes

Tie-down points on base frame

3700 kg (8,150 lb) counterweight

320 GC - Tier 3 Optional Equipment

Print

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

CAT TECHNOLOGY

VisionLink Productivity

ELECTRICAL SYSTEM

LED chassis light, left-hand/right-hand boom lights, cab lights

HYDRAULIC SYSTEM

Auto warm up

Hammer return filter circuit

Slider joysticks

Tool Control (two pump, one/two way high-pressure flow)

Basic Tool Control (one pump, one way high-pressure flow)

Quick coupler circuit

SAFETY AND SECURITY

Right-side-view camera

Swing alarm

Inspection lighting

UNDERCARRIAGE AND STRUCTURES

790 mm (31") triple grouser shoes

OTHER OPTIONAL CONFIGURATIONS

Forestry (Brazil only)

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320 GC - Tier 3

320 GC - Tier 3

Net Power - ISO 9249: 143 hp; 107 kW
Operating Weight: 45000 lb; 20400 kg
Maximum Digging Depth: 21.8 ft; 6630 mm

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320 - Tier 4 / Stage V

Net Power - ISO 9249: 172 hp; 128.5 kW
Operating Weight: 49800 lb; 22600 kg
Maximum Digging Depth: 22 ft; 6720 mm

View Details

Excavators

320 GC - Tier 4 / Stage V

320 GC - Tier 4 / Stage V

Net Power - ISO 9249: 146 hp; 109 kW
Operating Weight: 48500 lb; 22000 kg
Net Power - ISO 9249 (DIN): 148 hp (metric); 148 hp (metric)

View Details

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320 Family Introduction Video

Cat® 320 GC Next Generation Excavator Delivers More for Montdami Construction

320 Family Introduction Video

Cat® 320 GC Next Generation Excavator Delivers More for Montdami Construction

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