320D2 GC (Tier 3)

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Overview

The Cat® 320D2 GC hydraulic excavator is engineered for low operating costs, simple routine maintenance, high productivity, and long-term durability.

Engine

Units:
Engine Model C4.4 ACERT C4.4 ACERT Less
Net Flywheel Power 114.0 hp 85.0 kW Less
Bore 4.13 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 269.0 in3 4.4 L Less
Engine Power – ISO 14396 125.0 hp 93.0 kW Less
Net Power – SAE J1349/ISO 9249 114.0 hp 85.0 kW Less
Engine RPM (rating) 2200.0 rpm 2200.0 rpm Less
Emissions The 320D2 GC meets Brazil MAR-1 and China NR III emissions standards, equivalent to U.S. EPA Tier III and EU Stage IIIA. The 320D2 GC meets Brazil MAR-1 and China NR III emissions standards, equivalent to U.S. EPA Tier III and EU Stage IIIA. Less
Note No engine power derating required below 3000 m (9,843 ft) altitude. No engine power derating required below 3000 m (9,843 ft) altitude. Less

Weights

Operating Weight 45900.0 lb 20800.0 kg Less
Maximum Operating Weight 45900.0 lb 20800.0 kg Less
Minimum Operating Weight 44300.0 lb 20100.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 108.3 gal 410.0 L Less
Cooling System 6.6 gal 25.0 L Less
Engine Oil 4.2 gal 16.0 L Less
Swing Drive 2.1 gal 8.0 L Less
Final Drive 2.1 gal 8.0 L Less
Hydraulic System Oil (including tank) 68.7 gal 260.0 L Less
Hydraulic Tank Oil 36.5 gal 138.0 L Less

Swing Mechanism

Swing Speed 11.9 rpm 11.9 rpm Less
Swing Torque 45581.0 lbf-ft 61.8 kN·m Less

Drive

Maximum Drawbar Pull 46311.0 lbf 206.0 kN Less
Maximum Travel Speed – High 3.6 mph 5.8 km/h Less
Maximum Travel Speed – Low 2.2 mph 3.6 km/h Less

Hydraulic System

Main System – Maximum Flow (total) 113.1 gal/min 428.0 L/min Less
Maximum Pressure 5076.0 psi 35.0 MPa Less
Maximum Pressure – Swing 3626.0 psi 25.0 MPa Less
Pilot System – Maximum Flow (total) 6.1 gal/min 23.1 L/min Less
Pilot System – Maximum Pressure 566.0 psi 3900.0 kPa Less

Dimensions*: Reach Boom – 5.7 m (18'8"); R2.9 B1 (9'6") Stick

Shipping Height** 9.92 ft 3030.0 mm Less
Shipping Length 31.0 ft 9460.0 mm Less
Tail Swing Radius 9.0 ft 2750.0 mm Less
Length to Center of Rollers 10.75 ft 3270.0 mm Less
Track Length 13.42 ft 4080.0 mm Less
Ground Clearance*** 1.5 ft 450.0 mm Less
Track Gauge – Standard Undercarriage (shipping) 7.25 ft 2200.0 mm Less
Transport Width – Standard Undercarriage: 600 mm (24") Shoe 9.17 ft 2800.0 mm Less
Transport Width – Standard Undercarriage: 790 mm (31") Shoe 9.83 ft 2990.0 mm Less
Cab Height*** 9.67 ft 2950.0 mm Less
Counterweight Clearance*** 3.33 ft 1020.0 mm Less
Note *With UD 0.90 m3 (1.17 yd3) Bucket. *With UD 0.90 m3 (1.17 yd3) Bucket. Less
Note **Including shoe lug height. **Including shoe lug height. Less
Note ***Without shoe lug height. ***Without shoe lug height. Less

Working Ranges*: Reach Boom – 5.7 m (18'8"); R2.9 B1 (9'6") Stick

Maximum Digging Depth 22.08 ft 6730.0 mm Less
Maximum Reach at Ground Line 32.42 ft 9870.0 mm Less
Maximum Loading Height 21.83 ft 6490.0 mm Less
Minimum Loading Height 7.08 ft 2170.0 mm Less
Maximum Depth Cut for 2240 mm (8 ft) Level Bottom 21.5 ft 6560.0 mm Less
Maximum Vertical Wall Digging Depth 18.83 ft 5750.0 mm Less
Bucket Digging Force (ISO) 31500.0 lbf 140.0 kN Less
Stick Digging Force (ISO) 24100.0 lbf 107.0 kN Less
Note *With GDX 1.0 m3 (1.3 yd3) Bucket. *With GDX 1.0 m3 (1.3 yd3) Bucket. Less

Dimensions*: Reach Boom – 5.7 m (18'8"); R2.5 B1 (8'2") Stick

Shipping Height** 10.0 ft 3050.0 mm Less
Shipping Length 31.0 ft 9460.0 mm Less
Tail Swing Radius 9.0 ft 2750.0 mm Less
Length to Center of Rollers 10.75 ft 3270.0 mm Less
Track Length 13.42 ft 4080.0 mm Less
Ground Clearance*** 1.5 ft 450.0 mm Less
Track Gauge – Standard Undercarriage (shipping) 7.25 ft 2200.0 mm Less
Transport Width – Standard Undercarriage: 600 mm (24") Shoe 9.17 ft 2800.0 mm Less
Transport Width – Standard Undercarriage: 790 mm (31") Shoe 9.83 ft 2990.0 mm Less
Cab Height*** 9.67 ft 2950.0 mm Less
Counterweight Clearance*** 3.33 ft 1020.0 mm Less
Note *With UD 0.90 m3 (1.17 yd3) Bucket. *With UD 0.90 m3 (1.17 yd3) Bucket. Less
Note **Including shoe lug height. **Including shoe lug height. Less
Note ***Without shoe lug height. ***Without shoe lug height. Less

Working Ranges*: Reach Boom – 5.7 m (18'8"); R2.5 B1 (8'2") Stick

Maximum Digging Depth 20.67 ft 6310.0 mm Less
Maximum Reach at Ground Line 31.08 ft 9470.0 mm Less
Maximum Loading Height 20.67 ft 6290.0 mm Less
Minimum Loading Height 8.5 ft 2590.0 mm Less
Maximum Depth Cut for 2240 mm (8 ft) Level Bottom 19.58 ft 5960.0 mm Less
Maximum Vertical Wall Digging Depth 17.58 ft 5350.0 mm Less
Bucket Digging Force (ISO) 31500.0 lbf 140.0 kN Less
Stick Digging Force (ISO) 26500.0 lbf 118.0 kN Less
Note *With GDX 1.0 m3 (1.3 yd3) Bucket. *With GDX 1.0 m3 (1.3 yd3) Bucket. Less

Performance

  • The 320D2 GC equipped with the C4.4 ACERT™ engine burns 7% less fuel than models equipped with the C7.1 ACERT engine, and offers up to 17% lower fuel consumption than the previous 320D2 model.
  • The fuel system’s robust filtration reduces risk of failure from contaminated fuel.
  • Caterpillar designed and built hydraulic pumps deliver superior performance.
  • Meets U.S. EPA Tier 3/EU Stage IIIA equivalent, Brazil MAR-1 and China Nonroad Stage III emission standards.
  • Boom and stick regeneration valves reduce fuel consumption.

Versatility

  • Utility and finishing work are fast and flawless with Cat buckets, thumbs, and compactors.
  • Cat couplers let you swap between attachments in seconds without leaving the cab.
  • See the whole money-making attachment lineup at www.cat.com/attachments.

Durability

  • The modified X‐frame structure provides long life and durability.
  • Robotically welded boom and stick are standard.
  • Greased track link between pins and bushings increases undercarriage life and reduces noise.

Ease of Operation

  • The cab is ergonomically designed with easy-to-operate controls.
  • Multiple seat and joystick adjustment options enhance comfort.
  • Excellent work site visibility from the cab enhances productivity and safety.
  • Low-effort joystick controls reduce operator fatigue.

Maintenance

  • Most service locations can be accessed at ground level.
  • Filters are grouped together to reduce maintenance time.
  • Pressure taps and S·O·SSM ports help maximize uptime.

Safety

  • The 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.

Technology

  • Integrated Cat technology solutions increase production and minimize operating costs.
  • Product Link™ reports key information from the machine to any location.