Used Caterpillar 320GC Excavator

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Detailed Introduction of Caterpillar 320GC Crawler Excavator

The Caterpillar 320GC is a 20-ton class medium crawler excavator developed by Caterpillar Inc., the global leading manufacturer of construction and mining equipment. Positioned as a cost-effective, fuel-efficient workhorse for light to medium-duty construction scenarios, it balances strong performance, low operating cost and long service life, making it one of the best-selling models in Caterpillar's GC product lineup.

1. Key Specifications

Parameter	Detailed Data
Operating Weight	19,800 – 21,500 kg (43,652 – 47,400 lb)
Net Rated Power	108 kW (145 hp) @ 2,000 rpm
Emission Standard	EU Stage V / U.S. Tier 4 Final / China Non-road Stage III (adjusted per regional requirements)
Standard Bucket Capacity	0.9 – 1.19 m³ (1.18 – 1.56 cu yd)
Max Digging Depth	6,710 mm (22 ft)
Max Digging Reach	9,850 mm (32 ft 4 in)
Max Bucket Digging Force	151 kN
Travel Speed	3.5 / 5.5 km/h (2.2 / 3.4 mph)
Swing Speed	11 rpm

2. Powertrain

The 320GC is equipped with a highly reliable Cat C4.4 ACERT™ 4-cylinder diesel engine, which adopts electronic high-pressure common rail fuel injection technology, optimized turbocharging system and advanced aftertreatment device to meet strict global emission standards without sacrificing power output.

Fuel consumption is up to 20% lower than the previous generation 320D2 model under the same working conditions, significantly reducing daily operating costs
Strong adaptability to low-quality fuel, suitable for long-term operation in remote areas with insufficient fuel supply guarantee
Low noise and vibration design reduces environmental impact and operator fatigue

3. Hydraulic System

It adopts Caterpillar's proprietary load-sensing hydraulic system, which precisely matches hydraulic flow to actual operation demands, avoiding energy waste caused by excess flow:

Delivers smooth, responsive control for boom, arm, bucket and swing movements, supporting high-precision fine operations such as grading, trenching and heavy lifting
Reinforced main valve, hydraulic pump and pipelines extend the service life of the hydraulic system and reduce leakage risk
Supports one-touch power mode switching: ECO mode for maximum fuel saving during light load operations, Standard mode for higher efficiency during heavy load operations

4. Structural Durability

The whole machine is designed in line with Caterpillar's industry-leading durability standards, adapting to long-term operation in harsh environments:

High-strength wear-resistant steel is used for the main frame, boom, arm and undercarriage, with stress distribution optimized through finite element analysis to avoid structural cracking
X-shaped lower frame has excellent impact resistance, and the heavy-duty undercarriage is equipped with reinforced track links, rollers and idlers, extending the replacement cycle of wearing parts
The standard heavy-duty bucket is fitted with high-hardness bucket teeth, with strong wear resistance when working in gravel and rocky conditions

5. Operator Experience

The 320GC is equipped with a fully enclosed ROPS (Roll-Over Protective Structure) / FOPS (Falling Object Protective Structure) certified cab, providing comprehensive safety protection for operators:

Fully adjustable high-back shock-absorbing seat effectively reduces fatigue during long shifts
Large-area curved windows provide 360° panoramic visibility, eliminating operation blind spots and improving work safety
Ergonomic control joystick with light operating force, and high-efficiency air conditioning system maintain a comfortable working environment even in extreme hot or cold weather
Built-in USB charging port, multi-functional storage compartments and radio entertainment system improve the overall operation experience

6. Smart Technologies

Standard equipped with Caterpillar's exclusive Product Link™ telematics system, which automatically collects and transmits key operating data (working hours, fuel consumption, location, fault codes, etc.) to the cloud platform. Fleet managers can check equipment status in real time via web or mobile client, arrange maintenance in advance and avoid unplanned shutdowns
Optional Cat Grade with 2D system provides real-time digging depth and grade guidance for operators, reducing the need for manual surveying and improving construction accuracy and efficiency by up to 30%

7. Maintenance Convenience

All daily maintenance points are arranged at ground level, so maintenance personnel can complete inspection and maintenance without climbing onto the machine
The service life of hydraulic oil filter is extended to 2,000 working hours, and the engine oil and filter replacement cycle is extended to 500 working hours, reducing maintenance frequency and spare parts cost
Supported by Caterpillar's global after-sales service network, users can get timely parts supply and technical support all over the world

8. Typical Applications

The Caterpillar 320GC is suitable for a wide range of scenarios:

Urban civil construction: foundation excavation, earthmoving, material handling on construction sites
Municipal engineering: road renovation, pipe laying, trench excavation, green belt landscaping
Agricultural engineering: land consolidation, farm water conservancy construction, forestry logging and handling
Small-scale mining and quarrying: ore stripping, material loading, site finishing

Core Advantages

The 320GC stands out in the 20-ton excavator market for its ultra-low operating cost, reliable performance, comfortable operation and intelligent management functions, making it an ideal choice for small and medium-sized construction contractors, equipment rental companies and individual operators pursuing high cost performance.

Non flooded

No accident

Original product

Used Caterpillar 320GC Excavator

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