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CAT Hydraulic Excavator 320D3 GC

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a new 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.

Up To 25% More Fuel Efficient
A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.

Up To 25% Lower Maintenance Costs
With extended and more synchronized maintenance intervals, you get more done at a lower cost compared to the previous model.

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.

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Overview

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a new 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.

Up To 25% More Fuel Efficient
A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.

Up To 25% Lower Maintenance Costs
With extended and more synchronized maintenance intervals, you get more done at a lower cost compared to the previous model.

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.

Engine

Swing Drive
6 L
Net Power
ISO 9249:2007
Bore
104 mm
Stroke
113 mm
Displacement
5.76 L
Engine Power
ISO 14396:2002
Engine Model
ALUW06DTI

Service Refill Capacities

Counterweight Clearance
1020 mm
Fuel Tank Capacity
350 L
Swing Drive (each)
6 L
Hydraulic System (Including Tank)
230 L
Final Drive - Each
5 L
Engine Oil with Filter
18 L
Cooling System
19 L

Standards

Cab/ROPS (optional)
ISO 12117-2:2008
Cab/FOGS (optional)
ISO 10262:1998 Level II
Brakes
ISO 10265:2008

Hydraulic System

Maximum Pressure - Travel
35000 kPa
Maximum Pressure - Swing
25000 kPa
Pilot System - Maximum Pressure
3900 kPa
Main System - Maximum Flow (Total)
400 L/min
Maximum Pressure - Equipment
35000 kPa
Boom Cylinder - Bore
125 mm
Boom Cylinder - Stroke
1260 mm
Stick Cylinder - Bore
130 mm
Stick Cylinder - Stroke
1504 mm
Bucket Cylinder - Bore
115 mm
Bucket Cylinder - Stroke
1104 mm

Drive

Maximum Drawbar Pull
152 kN
Maximum Travel Speed
3.8 km/h
Maximum Gradeability
35°/70%

Sound Performance

ISO 6395 (External)
102 dB(A)
ISO 6396 (Inside Cab)
72 dB(A)

Dimensions

Length to Center of Rollers
3270 mm
Track Gauge
Standard Undercarriage 2200 mm
Boom
Reach 5.7 m (18'8")
Stick
R2.25 (7'5")
Bucket
GD
Shipping Height (top of cab)
3100 mm
Shipping Length
9520 mm
Tail Swing Radius
2750 mm
Ground Clearance
450 mm
Transport Width – 600 mm (24") Shoes
2800 mm
Handrail Height
2915 mm

Swing Mechanism

Swing Torque
62 kN•m
Swing Speed
10.00 rpm

Track

Standard Track Shoes Width
600 mm
Number of Shoes (each side)
45
Number of Track Rollers (each side)
7
Number of Carrier Rollers (each side)
2

Working Ranges and Forces

Boom
Reach 5.7 m (18'8")
Stick
R2.25 (7'5")
Bucket
GD
Maximum Digging Depth
5970 mm
Maximum Reach at Ground Level
9140 mm
Maximum Cutting Height
9110 mm
Maximum Loading Height
6250 mm
Minimum Loading Height
2920 mm
Maximum Depth Cut for 2440 mm (8'0") Level Bottom
5640 mm
Maximum Vertical Wall Digging Depth
5350 mm
Bucket Digging Force (ISO)
134 kN
Stick Digging Force (ISO)
112 kN

Built to Last

  • 6-cylinder mechanical engine for improved reliability.
  • Integrated component design for better durability and strength.
  • Consolidated pilot system for simpler hydraulics.
  • New modified X?frame structure for longer life and durability.
  • Reinforced boom and stick with internal baffle plates for increased durability.
  • Greased track link between pins and bushings provides increased undercarriage life and noise reduction.

Lower Maintenance Costs

  • Up to 20% lower maintenance costs compared to the 320D3.
  • Save time and money with extended service intervals for hydraulics and coolants.
  • New hydraulic oil filter with 50 percent more life.
  • 6,000-hour hydraulic oil service with 12% less oil required.
  • Quick and easy maintenance with most service locations accessible at ground level.
  • Filters grouped together to reduce maintenance time
  • Pressure taps and S•O•S SM ports help maximize uptime.

Reduced Fuel Consumption with High Performance

  • The 320D3 GC offers up to 30% lower fuel consumption against previous comparable models.
  • 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 cooler.
  • Save energy with boom and stick regeneration valves.
  • Product Link™ comes standard so you can remotely monitor machine health by tracking fault codes, location, and hours. It is tamper-proof and secures data only for customer view on demand through the VisionLink® online interface.

Superior Operator Comfort

  • Ergonomically designed cab with easy-to-operate controls.
  • Multiple seat and joystick adjustment options enhance comfort.
  • 25% increase in glass area for improved worksite visibility and enhanced productivity.
  • Reduced blind spots with convex profile glass for better safety
  • Low-effort joystick controls reduce operator fatigue.

Built-in Safety Features

  • Hydraulic activation lever safely locks out all hydraulic functions.
  • Anti?skid plating and countersunk bolts reduce slipping in severe conditions and during routine checks.
  • A full-length firewall separates the pump compartment from the engine.
  • A ground-level fuel cutoff switch shuts down the engine in an emergency.
  • Large steps on track frame and storage box for easy and safe climb.
  • Emergency exit in cab for improved operator safety.

Versatility

  • Utility and finishing work are fast and flawless with Cat buckets,thumbs, and compactors.
  • Demolition work is quick and easy with Cat hammers and other work tools.
  • Cat couplers let you swap between attachments in seconds without leaving the cab.
  • See the entire attachment lineup at www.cat.com/attachments.

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