Feature and benefits

Introducing the 320 GX – our economy model with all the reliability and ease of operation you expect from a Cat® excavator, with easy maintenance and lower cost features designed to give you a faster return on your equipment investment.

Latest features

Cab Monitor Improvements Continuously improved user interface allows for intuitive navigation, mini…

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: 05E

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Easy to operate

The machine’s electrohydraulic system allows accurate bucket control for maximum precision. …

The machine’s electrohydraulic system allows accurate bucket control for maximum precision.
Start the engine with a push button.
Navigate quickly on the high-resolution 203 mm (8 in) touchscreen monitor
Control the excavator comfortably with easy-to-reach controls all located in front of you.
Program your preferences for power mode, joystick pattern, and joystick response using Operator ID. The excavator will automatically remember your selections.

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Easy to maintain

Do daily maintenance at ground level. Up to 20% less maintenance cost than…

Do daily maintenance at ground level.
Up to 20% less maintenance cost than the 320D2 GC due to enhanced filters and extended and synchronized service intervals (savings calculated over 12,000 machine hours).
The air intake filter with precleaner has double the dust holding capacity of the previous air intake filter. Final drive and swing drive oil is double the initial service life – from 250 to 500 hours.
Fuel filters are synchronized to be changed at 1,000 hours – double the interval from the previous filters.
The 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.
Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to help increase undercarriage life.
Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
Advansys™ bucket tips increase penetration and improve cycle times. Tip changes can be done quickly with a simple lug wrench instead of a hammer or special tool, improving safety and uptime.
S·O·S^SM oil sampling ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.

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Low owning and operating costs

The excavator uses up to 15% less fuel than the 320D2 GC in similar applications. …

The excavator uses up to 15% less fuel than the 320D2 GC in similar applications.
Match the excavator to the job with a choice of two modes: Power and Smart. Power mode provides full-time maximum output. Smart mode automatically matches engine and hydraulic power to digging conditions to help conserve fuel without impacting production.
Save fuel with Automatic Engine Control (AEC). It reduces engine speed when the machine is not under load to minimize fuel consumption.

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Reliable performance

A versatile machine that performs well in bucket and hammer applications. …

A versatile machine that performs well in bucket and hammer applications.
Booms and sticks are robotically welded and checked ultrasonically to ensure maximum durability.
Reliable and durable and built on classic, proven components.
The Cat C4.4 engine and electrohydraulic system work in sync to help you move plenty of material while using less fuel.
Fast cycle times give you excellent productivity.
A hammer-ready valve is standard for added versatility.
Two levels of fuel filtration protect the engine from contaminated diesel fuel.
Cat undercarriage is built strong to absorb jobsite stresses for enhanced performance and durability.
General duty buckets are designed for fast material discharge and cleaning.
Work up to 4500 m (14,760 ft) above sea level with engine power derate above 3000 m (9,840 ft).
Standard high-ambient temperature capability is 52°C (125°F) with cold start capability at -25°C (-13°F).

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Work in comfort

The cab has a wide seat that adjusts to suit individual operator preferences. &n…

The cab has a wide seat that adjusts to suit individual operator preferences.
Standard automatic climate control helps keep you comfortable all shift long.
Excellent work site visibility from the cab enhances productivity and safety.
Optimized low-effort joystick controls reduce operator fatigue.
Convenience features include a radio, auxiliary port for headphones, and a USB port for connecting and charging devices; a 24V DC outlet makes phone charging even faster.
Use the radio’s Bluetooth® technology to make hands-free calls.
The cup holder and storage space in front of the controls can hold large cups and wide cell phones; storage behind the seat can hold a large lunchbox and other items.

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Enhanced safety

Access daily maintenance points from ground level with the exception of the engine oil level – no need to…

Access daily maintenance points from ground level with the exception of the engine oil level – no need to climb on top of the excavator to check filters or grease linkage.
An optional ISO certified Rollover Protective Structure (ROPS) cab is offered in some regions to help protect the operator in the event of a rollover.
Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab posts and larger windows.
An optional rearview camera enhances visibility.
Anti-skid plating on the service platform helps prevent slipping.
The handrails meet ISO 2867:2011 requirements for added safety.
Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
Enhance jobsite safety. Add a swing alarm to alert people when you're rotating from trench to stockpile and back again.

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Technical specification

US
Metric

Engine

Specification	Value
Net Power - ISO 9249	103.6 kW
Net Power - ISO 9249 (DIN)	141 hp (metric)
Engine Model	Cat C4.4
Engine Power - ISO 14396	108 kW
Engine Power - ISO 14396 (DIN)	147 hp (metric)
Bore	105 mm
Stroke	127 mm
Displacement	4.4 l
Biodiesel Capability	Up to B20¹
Emissions	Emits 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.
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.

Hydraulic System

Specification Value

Main System - Maximum Flow - Implement 429 l/min

Maximum Pressure - Equipment 35.000 kPa

Maximum Pressure - Travel 35.000 kPa

Maximum Pressure - Swing 25.000 kPa
Swing Mechanism

Specification Value

Swing Speed 11.07 r/min

Maximum Swing Torque 74 kN·m

Weights

Specification	Value
Operating Weight	20.500 kg
Note	Reach boom, R2.7 (8'9") stick, General Duty (GD) 0.93 m³ (1.22 yd³) bucket, 790 mm (31") triple grouser shoes, and 3600 kg (7,940 lb) counterweight.

Service Refill Capacities

Specification	Value
Fuel Tank Capacity	390 l
Cooling System	24.5 l
Engine Oil	15 l
Swing Drive	5.5 l
Final Drive - Each	4.5 l
Hydraulic System - Including Tank	218 l
Hydraulic Tank	115 l

Dimensions

Specification	Value
Boom	Reach 5.7 m (18'8")
Stick	Reach 2.7 m (8'10")
Bucket	GD 0.93 m³ (1.22 yd³)
Shipping Height - Top of Cab	2.970 mm
Handrail Height	3.010 mm
Shipping Length	9.570 mm
Tail Swing Radius	2.830 mm
Counterweight Clearance	1.040 mm
Ground Clearance	460 mm
Track Length	4.080 mm
Track Length to Center of Rollers	3.270 mm
Track Gauge	2.200 mm
Transport Width	2.990 mm

Working Ranges & Forces

Specification	Value
Maximum Digging Depth	6.430 mm
Boom	Reach 5.7 m (18'8")
Stick	Reach 2.7 m (8'10")
Bucket	GD 0.93 m³ (1.22 yd³)
Maximum Reach at Ground Level	9.580 mm
Maximum Cutting Height	9.290 mm
Maximum Loading Height	6.450 mm
Minimum Loading Height	2.460 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	6.250 mm
Maximum Vertical Wall Digging Depth	5.510 mm
Bucket Digging Force - ISO	136 kN
Stick Digging Force - ISO	106 kN

Note

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

Booms and sticks

5.7 m (18'8") Reach boom

Cab

Sound suppressed with viscous mounts
High-resolution 203 mm (8") LCD touch screen monitor
Mechanically adjustable seat with headrest and armrest
51 mm (2") orange seat belt
Auto bi-level air conditioner
Keyless push-to-start engine control
Fixed left-side console
1 button joysticks
Bluetooth® radio with USB/Aux ports
24V DC outlet
Cup holder and storage compartments
70/30 tempered glass windshield
Rear window emergency exit
Upper radial wiper with washer
Openable steel hatch
LED Dome light
Washable floor mat

Cat technology

VisionLink®
Capability to Remote Flash Cat Product Link™ (telematics only)

Electrical system

Maintenance-free 950 CCA batteries (x2)
Electrical disconnect switch
LED chassis and cab lights
LED left-side boom light

Engine

Cat C4.4 single turbo diesel engine
Two selectable modes: Power, Smart
Up to 4500 m (14,760 ft) altitude capability
52°C (125° F) high-ambient cooling capacity
-25°C (-13° F) cold start capability
Electric fuel priming pump
Two-stage fuel filtration system
Sealed double element air filter with integrated pre-cleaner

Hydraulic system

Electronic main control valve, hammer ready
Back-to-back electronic pumps
Boom and stick regeneration circuits
Automatic hydraulic oil warmup
Automatic two-speed travel
High performance hydraulic return filter

Safety and security

Anti-skid plating with countersunk bolts
Handrail and hand hold
Lockable external tool/storage box
Signaling/warning horn
Hydraulic lockout lever
Lockable disconnect switch

Service and maintenance

Grouped engine oil and fuel filters
Scheduled Oil Sampling (S·O·S℠) ports

Undercarriage and structures

Grease lubricated track link
Center track guiding guard
Bottom guards
Travel motor guards
3600 kg (7,940 lb) counterweight
Tie-down points

Note

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

Booms and sticks

2.5 m (8'2") Reach stick
2.7 m (8'9") Reach stick

Cab

3 button joysticks

Cat technology

VisionLink Productivity

Electrical system

LED right-side boom light

Hydraulic system

Hammer lines
Hammer return filter

Safety and security

FOGS with matching lights
Rearview camera
Rear- and right-side-view cameras (mandatory for Kingdom of Saudi Arabia; not available in other regions)
Rollover protective structure (ROPS) (mandatory for Kingdom of Saudi Arabia; optional in Africa, Middle East, South America; not available in other regions)
Travel alarm (standard in South America)
Swing alarm

Service and maintenance

Radiator screen

Undercarriage and structures

600 mm (24") triple grouser track shoes
790 mm (31") triple grouser track shoes

Download technical specifications

Learn more information about the Cat 320 GX Hydraulic Excavator.

Download (2.22 MB, PDF)

Medium excavators

Cat 320 GX - Tier 3

Feature and benefits

Latest features

Easy to operate

Easy to maintain

Low owning and operating costs

Reliable performance

Work in comfort

Enhanced safety

Technical specification

Engine

Hydraulic System

Swing Mechanism

Weights

Service Refill Capacities

Dimensions

Working Ranges & Forces

Note

Booms and sticks

Cab

Cat technology

Electrical system

Engine

Hydraulic system

Safety and security

Service and maintenance

Undercarriage and structures

Note

Booms and sticks

Cab

Cat technology

Electrical system

Hydraulic system

Safety and security

Service and maintenance

Undercarriage and structures

Download technical specifications

Media gallery

The official Mantrac Group used and
rental machine app

Specification	Value
Main System - Maximum Flow - Implement	429 l/min
Maximum Pressure - Equipment	35.000 kPa
Maximum Pressure - Travel	35.000 kPa
Maximum Pressure - Swing	25.000 kPa

Specification	Value
Swing Speed	11.07 r/min
Maximum Swing Torque	74 kN·m

Medium excavators

Cat 320 GX - Tier 3

Feature and benefits

Latest features

Easy to operate

Easy to maintain

Low owning and operating costs

Reliable performance

Work in comfort

Enhanced safety

Technical specification

Engine

Hydraulic System

Swing Mechanism

Weights

Service Refill Capacities

Dimensions

Working Ranges & Forces

Note

Booms and sticks

Cab

Cat technology

Electrical system

Engine

Hydraulic system

Safety and security

Service and maintenance

Undercarriage and structures

Note

Booms and sticks

Cab

Cat technology

Electrical system

Hydraulic system

Safety and security

Service and maintenance

Undercarriage and structures

Download technical specifications

Media gallery

The official Mantrac Group used and rental machine app

The official Mantrac Group used and
rental machine app