320D3 GC

Medium Excavators 320D3 GC

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Key Specs

Net Power - ISO 9249: 123 hp; 92 kW

Operating Weight: 43700 lb; 19800 kg

Net Power - ISO 9249 (DIN): 125 hp (metric); 125 hp (metric)

320D3 GC
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Overview

Versatility at the Lowest Cost Per Hour

The Cat 320D3 GC is a smart choice for operations where high reliability and low
cost-per-hour performance are priority. Excellent engineering from the bucket
to the tracks and everywhere in between, the 320D3 GC gives you
dependable performance, low operating costs, and more comfort for operators.

Benefits

Low Fuel Consumption

Two power modes, Standard and Eco, deliver options for less fuel usage, and optional fuel consumption tracking in VisionLink® provides more control of fuel consumption.

Low Maintenance Costs

Maximize uptime with less extended service intervals for the hydraulic filter, 6,000 hours of hydraulic oil service, and no pilot or drain filters.

Simplicity Adds to Reliability

An integrated pilot system and a 6-cylinder mechanical engine without an Electronic Control Module (ECM) and integrated pilot system enable simpler hydraulics. Compatibility with a hammer and bucket add to the machine’s versatility.

Features At A Glance

SIMPLY RELIABLE

Proven 6-cylinder mechanical engine with no electronic control module.
HD and reinforced stick compatible with hammer and bucket. No application restrictions.
Integrated pilot system for simpler hydraulics.
Greased track link between pins and bushings provides increased undercarriage life and noise reduction.

LOWER FUEL CONSUMPTION

With the increased fuel efficiency, typical fuel consumption in earthmoving applications is between 11 to 13 liters per hour, lower than most comparable machines in the market.
Robust and easy-to-maintain fuel system filtration reduces risk of failure from contaminated fuel.
Caterpillar designed and built hydraulic pumps deliver superior performance.
Conserve power with new single-panel cooling system.
Save energy with boom and stick regeneration valves.
Optional Fuel Flow meter aids in predicting fuel consumption in various applications and provides timely information to the operator about the fuel consumption of the machine. Data can be reported in VisionLink.

LOW MAINTENANCE COSTS

6,000 hour hydraulic oil change, up to 12% less oil needed than previous generations.
Extended hydraulic oil filter change, up to 50% more than previous generations.
No drain filter needed, protection is provided by a screen and magnet.
Extended first engine oil change interval (500 hours).
Filters grouped together to reduce maintenance time.
Pressure taps and S•O•S ports help maximize uptime.
VisionLink™ comes standard so you can remotely monitor machine health, location, hours, and absolute fuel level on demand through the online interface.

WORK IN COMFORT

Improved spacious, comfortably designed cab with easy-to-operate controls.
Engine Stop and Start now available with the key.
In-cab 203 mm (8 in) screen display is easy to use, intuitive, and user-friendly.
LED warning lights alert operator when machine is not within safe operating range.
Ergonomically designed seat to aid in operator comfort. Seat easily adjusts and is equipped with adjustable armrests and a non-retractable seatbelt.
Automated climate control helps maintain consistent cab temperature for improved operator comfort.
Low-effort joystick controls reduce operator fatigue.

BUILT-IN SAFETY FEATURES

Hydraulic activation lever locks out all hydraulic functions.
Anti‐skid plating and countersunk bolts reduce slipping in severe conditions and during routine checks.
Grips on the track frame, service platform, cab and battery compartment for an easy climb up and down from the service platform and operator station.
A full-length firewall separates the pump compartment from the engine.
Improved muffler design reduces sound enabling the machines to work at night.
A ground-level fuel cutoff switch shuts down the engine in an emergency.
Large steps on track frame and storage box for easy climb.
Emergency exit in cab for operator safety.
LED lighting with brighter illumination allows for better visibility.

Specifications Standard Equipment Optional Equipment

Product Specifications for 320D3 GC

Engine

Net Power - ISO 9249	123 hp 92 kW
Net Power - ISO 9249 (DIN)	125 hp (metric) 125 hp (metric)
Engine Model	ALUW06DTI ALUW06DTI
Engine Power - ISO 14396:2002	134 hp 100 kW
Engine Power - ISO 14396 (DIN)	136 hp (metric) 136 hp (metric)
Bore	4 in 104 mm
Stroke	4 in 113 mm
Displacement	351 in³ 5.76 l
Biodiesel Capability	Up to B10 Up to B10
Emissions	Non-certified emission engine. Non-certified emission engine.
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 1,700 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 1,700 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.

Hydraulic System

Main System - Maximum Flow	400 l/min (106 gal/min) 400 l/min (106 gal/min)
Maximum Pressure - Equipment	5075 psi 35000 kPa
Maximum Pressure - Travel	5075 psi 35000 kPa
Maximum Pressure - Swing	3625 psi 25000 kPa

Swing Mechanism

Swing Speed	10 r/min 10 r/min
Maximum Swing Torque	45581 ft·lbf 62 kN·m

Weights

Operating Weight	43700 lb 19800 kg
Note	4.1 m (13'5") Standard undercarriage, 5.7 m (18'8") HD Reach boom, R2.25 (7'5") stick, 1 m³ (1.31 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight. 4.1 m (13'5") Standard undercarriage, 5.7 m (18'8") HD Reach boom, R2.25 (7'5") stick, 1 m³ (1.31 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight.

Service Refill Capacities

Fuel Tank Capacity	92.5 gal (US) 350 l
Cooling System	5 gal (US) 19 l
Engine Oil	4.8 gal (US) 18 l
Swing Drive - Each	1.6 gal (US) 6 l
Final Drive - Each	1.3 gal (US) 5 l
Hydraulic System - Including Tank	60.8 gal (US) 230 l
Hydraulic Tank	30.4 gal (US) 115 l

Dimensions

Boom	HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick	Reach 2.25 m (7'5") Reach 2.25 m (7'5")
Bucket	GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
Shipping Height - Top of Cab	10.4 ft 3100 mm
Handrail Height	9.7 ft 2915 mm
Shipping Length	31.3 ft 9520 mm
Tail Swing Radius	9 ft 2750 mm
Counterweight Clearance	3.4 ft 1020 mm
Ground Clearance	1.6 ft 450 mm
Track Length	13.5 ft 4080 mm
Length to Center of Rollers	10.9 ft 3270 mm
Track Gauge	7.3 ft 2200 mm
Transport Width	9.2 ft 2800 mm

Working Ranges and Forces

Boom	HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick	Reach 2.25 m (7'5") Reach 2.25 m (7'5")
Bucket	GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
Maximum Reach at Ground Level	30 ft 9140 mm
Maximum Cutting Height	29.11 ft 9110 mm
Maximum Loading Height	20.6 ft 6250 mm
Minimum Loading Height	9.7 ft 2920 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	18.6 ft 5640 mm

320D3 GC Standard Equipment

NOTE

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

ENGINE

Diesel engine, ALUW06DTI/8 - mechanical governor - emits equivalent to U.S. EPA Tier 2, not-certified

Two selectable power modes: Standard, Eco

One-touch low idle with auto engine speed control (AEC)

Two stage fuel filtration system with water separator and indicator

4000 m (13,120 ft) altitude capability

52°C (126° F) high-ambient cooling capacity with derate above 48°C (118° F)

-18° C (° F) cold start capability

85 Amp. alternator

Radial seal air filter with double filter element

Mechanical fuel priming pump

HYDRAULIC SYSTEM

Hydraulic boom and stick regeneration circuits

Boom and stick drift reduction valve

High performance hydraulic return filter (capsule filter type)

UNDERCARRIAGE AND STRUCTURES

Grease lubricated track links

Tie down points on base frame

Center track guiding guard

3650 kg (8,050 lb) counterweight

600 mm (24 in) triple grouser shoes (9.5 mm/0.4" thick)

BOOMS, STICKS AND LINKAGES

5.7 m (18'8") HD Reach boom

2.25 m (7'5") Reach stick

Bucket linkage, B1 family without lifting eye

ELECTRICAL SYSTEM

Two 750 CCA maintenance free batteries

Centralized electrical disconnect switch

90 seconds programmable time delay working lights (LED); storage box G67mounted (one), cab mounted (two), boom mounted LH (one)

SERVICE AND MAINTENANCE

Engine oil, fuel, and hydraulic oil filters grouped for ease of maintenance

Sampling ports for Scheduled Oil Sampling (S.O.S)

Radiator screen for radiator/oil cooler to prevent plugging by debris

SAFETY AND SECURITY

Rearview mirrors; handrail mounted (one), cab handhold mounted (one)

Bolt free service platform with anti-skid plate

Neutral lever (lock out) for all controls

Ground-level accessible engine shutoff lever in cab

Signaling/warning horn

Right-hand handrail and hand hold

CAB

Sound suppressed cab with viscous mounts

Openable skylight

Openable tempered front upper windshield

Rear window emergency exit

Removable tempered lower windshield with in cab storage bracket

Fully adjustable mechanical suspension seat, console and armrest

51 mm (2 in) seat belt

Two gauge cluster (monitor)

Automatic air conditioner with pressurized function

Dual USB charging ports

Washable floor mat

Interior utilities (Interior lighting, cigar lighter type socket, coat hook, beverage holder, document holding space, rear storage compartment)

TECHNOLOGY

VisionLink®

320D3 GC Optional Equipment

NOTE

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

ENGINE

-32° C (-25° F) cold start capability

Air precleaner

Fuel flow meter

HYDRAULIC SYSTEM

Auto two-speed travel

UNDERCARRIAGE AND STRUCTURES

Segmented track guiding guard

600 mm (24 in) triple grouser shoes (10 mm/4.0 in thick)

BOOMS, STICKS AND LINKAGES

2.5 m (8.2 in) HD Reach stick

CAB

Roll down sun screen

Control pattern changer

Product Specifications for 320D3 GC

Download Print

Engine

Net Power - ISO 9249	123 hp 92 kW
Net Power - ISO 9249 (DIN)	125 hp (metric) 125 hp (metric)
Engine Model	ALUW06DTI ALUW06DTI
Engine Power - ISO 14396:2002	134 hp 100 kW
Engine Power - ISO 14396 (DIN)	136 hp (metric) 136 hp (metric)
Bore	4 in 104 mm
Stroke	4 in 113 mm
Displacement	351 in³ 5.76 l
Biodiesel Capability	Up to B10 Up to B10
Emissions	Non-certified emission engine. Non-certified emission engine.
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 1,700 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 1,700 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.

Hydraulic System

Main System - Maximum Flow	400 l/min (106 gal/min) 400 l/min (106 gal/min)
Maximum Pressure - Equipment	5075 psi 35000 kPa
Maximum Pressure - Travel	5075 psi 35000 kPa
Maximum Pressure - Swing	3625 psi 25000 kPa

Swing Mechanism

Swing Speed	10 r/min 10 r/min
Maximum Swing Torque	45581 ft·lbf 62 kN·m

Weights

Operating Weight	43700 lb 19800 kg
Note	4.1 m (13'5") Standard undercarriage, 5.7 m (18'8") HD Reach boom, R2.25 (7'5") stick, 1 m³ (1.31 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight. 4.1 m (13'5") Standard undercarriage, 5.7 m (18'8") HD Reach boom, R2.25 (7'5") stick, 1 m³ (1.31 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight.

Service Refill Capacities

Fuel Tank Capacity	92.5 gal (US) 350 l
Cooling System	5 gal (US) 19 l
Engine Oil	4.8 gal (US) 18 l
Swing Drive - Each	1.6 gal (US) 6 l
Final Drive - Each	1.3 gal (US) 5 l
Hydraulic System - Including Tank	60.8 gal (US) 230 l
Hydraulic Tank	30.4 gal (US) 115 l

Dimensions

Boom	HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick	Reach 2.25 m (7'5") Reach 2.25 m (7'5")
Bucket	GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
Shipping Height - Top of Cab	10.4 ft 3100 mm
Handrail Height	9.7 ft 2915 mm
Shipping Length	31.3 ft 9520 mm
Tail Swing Radius	9 ft 2750 mm
Counterweight Clearance	3.4 ft 1020 mm
Ground Clearance	1.6 ft 450 mm
Track Length	13.5 ft 4080 mm
Length to Center of Rollers	10.9 ft 3270 mm
Track Gauge	7.3 ft 2200 mm
Transport Width	9.2 ft 2800 mm

Working Ranges and Forces

Boom	HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick	Reach 2.25 m (7'5") Reach 2.25 m (7'5")
Bucket	GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
Maximum Reach at Ground Level	30 ft 9140 mm
Maximum Cutting Height	29.11 ft 9110 mm
Maximum Loading Height	20.6 ft 6250 mm
Minimum Loading Height	9.7 ft 2920 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	18.6 ft 5640 mm

320D3 GC Standard Equipment

Print

NOTE

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

ENGINE

Diesel engine, ALUW06DTI/8 - mechanical governor - emits equivalent to U.S. EPA Tier 2, not-certified

Two selectable power modes: Standard, Eco

One-touch low idle with auto engine speed control (AEC)

Two stage fuel filtration system with water separator and indicator

4000 m (13,120 ft) altitude capability

52°C (126° F) high-ambient cooling capacity with derate above 48°C (118° F)

-18° C (° F) cold start capability

85 Amp. alternator

Radial seal air filter with double filter element

Mechanical fuel priming pump

HYDRAULIC SYSTEM

Hydraulic boom and stick regeneration circuits

Boom and stick drift reduction valve

High performance hydraulic return filter (capsule filter type)

UNDERCARRIAGE AND STRUCTURES

Grease lubricated track links

Tie down points on base frame

Center track guiding guard

3650 kg (8,050 lb) counterweight

600 mm (24 in) triple grouser shoes (9.5 mm/0.4" thick)

BOOMS, STICKS AND LINKAGES

5.7 m (18'8") HD Reach boom

2.25 m (7'5") Reach stick

Bucket linkage, B1 family without lifting eye

ELECTRICAL SYSTEM

Two 750 CCA maintenance free batteries

Centralized electrical disconnect switch

90 seconds programmable time delay working lights (LED); storage box G67mounted (one), cab mounted (two), boom mounted LH (one)

SERVICE AND MAINTENANCE

Engine oil, fuel, and hydraulic oil filters grouped for ease of maintenance

Sampling ports for Scheduled Oil Sampling (S.O.S)

Radiator screen for radiator/oil cooler to prevent plugging by debris

SAFETY AND SECURITY

Rearview mirrors; handrail mounted (one), cab handhold mounted (one)

Bolt free service platform with anti-skid plate

Neutral lever (lock out) for all controls

Ground-level accessible engine shutoff lever in cab

Signaling/warning horn

Right-hand handrail and hand hold

CAB

Sound suppressed cab with viscous mounts

Openable skylight

Openable tempered front upper windshield

Rear window emergency exit

Removable tempered lower windshield with in cab storage bracket

Fully adjustable mechanical suspension seat, console and armrest

51 mm (2 in) seat belt

Two gauge cluster (monitor)

Automatic air conditioner with pressurized function

Dual USB charging ports

Washable floor mat

Interior utilities (Interior lighting, cigar lighter type socket, coat hook, beverage holder, document holding space, rear storage compartment)

TECHNOLOGY

VisionLink®

320D3 GC Optional Equipment

Print

NOTE

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

ENGINE

-32° C (-25° F) cold start capability

Air precleaner

Fuel flow meter

HYDRAULIC SYSTEM

Auto two-speed travel

UNDERCARRIAGE AND STRUCTURES

Segmented track guiding guard

600 mm (24 in) triple grouser shoes (10 mm/4.0 in thick)

BOOMS, STICKS AND LINKAGES

2.5 m (8.2 in) HD Reach stick

CAB

Roll down sun screen

Control pattern changer

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Net Power - ISO 9249: 123 hp; 92 kW
Operating Weight: 43700 lb; 19800 kg
Net Power - ISO 9249 (DIN): 125 hp (metric); 125 hp (metric)

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Net Power - ISO 9249: 139 hp; 103.6 kW
Operating Weight: 45000 lb; 20400 kg
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Net Power - ISO 9249: 157 hp; 117 kW
Operating Weight: 50500 lb; 22900 kg
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320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

320D3 GC Hydraulic Excavator

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