Medium Excavators 320 GC Tier 3

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Key Specs

Net Power - ISO 9249: 143 hp; 107 kW

Operating Weight: 45,000 lb; 20400 kg

Maximum Digging Depth: 21.8 ft; 6630 mm

320 GC
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Overview

Low Cost Per Hour, Reliable Performance

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.

Benefits

Low Fuel Consumption

A precise combination of low engine speed and a large hydraulic pump deliver top performance, helping to burn 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.

Lower Maintenance Costs

Extended and synchronized maintenance intervals help you get more done at a lower cost compared to the previous model.

Features At A Glance

Displaying 1-6 of 9

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 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 lower maintenance costs compared to the 320D2 GC.
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∙SSM 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.
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.
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.

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. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It's all about making informed, data-based decisions to help reduce operating costs. Productivity management features enable you to analyze overall job site performance. You'll be able to track tonnage moved, production targets, and payload, as well as Grade 3D and compaction data. These vital metrics help you to reduce costs and improve jobsite operational efficiency.
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.

Attachments

Tackle your jobs with a complete Cat® solution. Cat attachments are not just accessories – they are essential tools that define what your machine can do. When you pair a Cat excavator with Cat attachments, you unlock a fully integrated system built for performance, durability, and efficiency. Whether you are clearing land, breaking concrete, or compacting soil, the right attachment transforms your excavator into a powerful, multi-purpose tool ready for any challenge. Depending on your project or application, you could benefit from excavator attachments such as:

Buckets: Handle everything from digging and grading to cleanup and debris removal with your excavator. Caterpillar® offers general duty, heavy duty, extreme duty, and severe duty buckets, as well as specialized designs for ditch cleaning, rock, and finishing work. Reinforced edges and wear-resistant materials ensure long-lasting performance in tough conditions.
Couplers (HEX): Cat® couplers for excavators enable fast, secure attachment changes, without the need to leave the cab. From Pin Grabbers to hydraulic quick connect options, couplers help reduce downtime, boost jobsite efficiency and promote versatility by allowing multiple machines to share a common attachment inventory.
Hammers: Break concrete, rock, and steel with up to 1,000 blows per minute. Built for high-production demolition, quarrying, and construction, they offer powerful impact energy and consistent performance. Their durability and low-maintenance design make them essential for demanding breaking applications.
Multi-Processors: A versatile tool for demolition, equipped with interchangeable jaws to handle concrete, steel, and rebar. Multi-Processors combine cutting, crushing and pulverizing capabilities in one attachment. Their modular design maximizes efficiency across a range of job site demands.
Demolition and Sorting Grapples: Tackle larger debris or precisely sort materials into piles. These grapples are engineered for accuracy in demolition and material sorting, handling concrete, rebar, wood, and mixed debris. High clamping force and agile movement make them ideal for primary and secondary demolition and recycling operations.
Scrap and Demolition Shears: Rotating shears provide precision cutting for metal structures, pipes, rebar, and scrap, making them ideal for demolition and recycling. Their powerful jaws and fast cycle times ensure clean cuts and high productivity. Built for durability, they excel in heavy-duty steel processing.
Pulverizers: Built to crush concrete and separate rebar during demolition and recycling. With high crushing force and fast cycle times, pulverizers efficiently reduce material for easier handling. Primary models feature 360° bidirectional rotation and tackle structure teardown, while secondary models have a fixed jaw design and process debris after demolition.
Compactors (Vibratory Plate): Compact soil, sand, gravel and asphalt quickly and efficiently to create a stable foundation. Vibratory plate compactors deliver high-impact force and even coverage, reducing air pockets and improving surface integrity for trenching, roadwork, and patching.
Rotary Cutters: Get accurate, precise work with less noise and vibration. Cat® Rotary Cutters deliver high torque and precision for a range of applications: demolition, grinding, profiling, trenching, tunneling, and quarrying. Specifically designed for excavator-mounted use to handle heavy-duty materials like concrete, rock, and dense brush with ease.
Orange Peel Grapples: Built for scrap and bulk material handling, Orange Peel Grapples excel with irregular, heavy loads like metal, rock, and waste. Their hydraulic tines provide superior grip and penetration. High-capacity and continuous rotation are perfect for scrap yards and transfer stations. Caterpillar® offers these grapples with a choice of different shell designs and tine options suited to various applications.

Cat® attachments are engineered to maximize your excavator’s productivity, helping you get more work done with greater efficiency and confidence. Choosing the right attachment is not just about compatibility, it is about unlocking your machine’s full potential while avoiding equipment damage or safety risks. Connect with your Cat Dealer to find the optimal attachments for your specific machine and application needs.

Please note: Not all attachments are available in all regions. Contact your Cat Dealer for details.

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

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).

Expect lower maintenance costs compared to the 320D2 GC.
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∙SSM 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.
S·O·S ports simplify maintenance and allow for quick, easy extraction of samples for fluid analysis.

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.

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.

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 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.

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. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It's all about making informed, data-based decisions to help reduce operating costs. Productivity management features enable you to analyze overall job site performance. You'll be able to track tonnage moved, production targets, and payload, as well as Grade 3D and compaction data. These vital metrics help you to reduce costs and improve jobsite operational efficiency.
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.

Buckets: Handle everything from digging and grading to cleanup and debris removal with your excavator. Caterpillar® offers general duty, heavy duty, extreme duty, and severe duty buckets, as well as specialized designs for ditch cleaning, rock, and finishing work. Reinforced edges and wear-resistant materials ensure long-lasting performance in tough conditions.
Couplers (HEX): Cat® couplers for excavators enable fast, secure attachment changes, without the need to leave the cab. From Pin Grabbers to hydraulic quick connect options, couplers help reduce downtime, boost jobsite efficiency and promote versatility by allowing multiple machines to share a common attachment inventory.
Hammers: Break concrete, rock, and steel with up to 1,000 blows per minute. Built for high-production demolition, quarrying, and construction, they offer powerful impact energy and consistent performance. Their durability and low-maintenance design make them essential for demanding breaking applications.
Multi-Processors: A versatile tool for demolition, equipped with interchangeable jaws to handle concrete, steel, and rebar. Multi-Processors combine cutting, crushing and pulverizing capabilities in one attachment. Their modular design maximizes efficiency across a range of job site demands.
Demolition and Sorting Grapples: Tackle larger debris or precisely sort materials into piles. These grapples are engineered for accuracy in demolition and material sorting, handling concrete, rebar, wood, and mixed debris. High clamping force and agile movement make them ideal for primary and secondary demolition and recycling operations.
Scrap and Demolition Shears: Rotating shears provide precision cutting for metal structures, pipes, rebar, and scrap, making them ideal for demolition and recycling. Their powerful jaws and fast cycle times ensure clean cuts and high productivity. Built for durability, they excel in heavy-duty steel processing.
Pulverizers: Built to crush concrete and separate rebar during demolition and recycling. With high crushing force and fast cycle times, pulverizers efficiently reduce material for easier handling. Primary models feature 360° bidirectional rotation and tackle structure teardown, while secondary models have a fixed jaw design and process debris after demolition.
Compactors (Vibratory Plate): Compact soil, sand, gravel and asphalt quickly and efficiently to create a stable foundation. Vibratory plate compactors deliver high-impact force and even coverage, reducing air pockets and improving surface integrity for trenching, roadwork, and patching.
Rotary Cutters: Get accurate, precise work with less noise and vibration. Cat® Rotary Cutters deliver high torque and precision for a range of applications: demolition, grinding, profiling, trenching, tunneling, and quarrying. Specifically designed for excavator-mounted use to handle heavy-duty materials like concrete, rock, and dense brush with ease.
Orange Peel Grapples: Built for scrap and bulk material handling, Orange Peel Grapples excel with irregular, heavy loads like metal, rock, and waste. Their hydraulic tines provide superior grip and penetration. High-capacity and continuous rotation are perfect for scrap yards and transfer stations. Caterpillar® offers these grapples with a choice of different shell designs and tine options suited to various applications.

Specifications Standard Equipment Optional Equipment

Product Specifications for 320 GC

Engine

Net Power - ISO 9249	143 hp 107 kW
Net Power - ISO 9249 (DIN)	145 hp (metric) 145 hp (metric)
Engine Model	Cat® C4.4 Cat® C4.4
Engine Power - ISO 14396	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.

Weights

Operating Weight	45,000 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 3.7 mt (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 3.7 mt (8,200 lb) counterweight.

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	32.1 ft 9770 mm
Maximum Cutting Height	31 ft 9440 mm
Maximum Loading Height	21.6 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

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*	11.3 r/min 11.3 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.

Service Refill Capacities

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

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
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	13.9 ft 4250 mm
Length to Center of Rollers	11.3 ft 3450 mm
Track Gauge	7.8 ft 2380 mm
Transport Width	9.8 ft 2980 mm

Air Conditioning System

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). 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).

320 GC 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 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

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- and platform-level engine oil dipsticks

Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

600 mm (24") triple grouser shoes

Tie-down points on base frame

3700 kg (8,150 lb) counterweight

4200 kg (9,260 lb) counterweight (Australia, New Zealand only)

320 GC Optional Equipment

NOTE

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

CAB

Operator Protective Guard (OPG)

BOOM AND STICKS

2.5 m (8'2") Reach stick

2.9 m (9'6") Reach stick

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

Product Specifications for 320 GC

Download Print

Engine

Net Power - ISO 9249	143 hp 107 kW
Net Power - ISO 9249 (DIN)	145 hp (metric) 145 hp (metric)
Engine Model	Cat® C4.4 Cat® C4.4
Engine Power - ISO 14396	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.

Weights

Operating Weight	45,000 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 3.7 mt (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 3.7 mt (8,200 lb) counterweight.

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	32.1 ft 9770 mm
Maximum Cutting Height	31 ft 9440 mm
Maximum Loading Height	21.6 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

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*	11.3 r/min 11.3 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.

Service Refill Capacities

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

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
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	13.9 ft 4250 mm
Length to Center of Rollers	11.3 ft 3450 mm
Track Gauge	7.8 ft 2380 mm
Transport Width	9.8 ft 2980 mm

Air Conditioning System

Air Conditioning

320 GC 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 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

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- and platform-level engine oil dipsticks

Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

600 mm (24") triple grouser shoes

Tie-down points on base frame

3700 kg (8,150 lb) counterweight

4200 kg (9,260 lb) counterweight (Australia, New Zealand only)

320 GC Optional Equipment

NOTE

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

CAB

Operator Protective Guard (OPG)

BOOM AND STICKS

2.5 m (8'2") Reach stick

2.9 m (9'6") Reach stick

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

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

Cat® Remote Flash

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Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

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VisionLink™

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VisionLink™ is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

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Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

Explore Technology

VisionLink™ is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

Explore Technology