Used Caterpillar 320GC Excavator

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Detailed Introduction to Caterpillar 320GC Hydraulic Excavator

Overview

The Caterpillar 320GC is a 20-ton class medium hydraulic excavator developed by Caterpillar Inc. for the global general construction market. As part of Caterpillar's next-generation GC (Great Cost-effective) product line, it balances reliable performance, ultra-low fuel consumption, and affordable long-term operating costs, making it ideal for small-to-medium construction projects that prioritize high return on investment (ROI). The model complies with mainstream global emission regulations including China National IV, EU Stage V, and U.S. Tier 4 Final, and is sold in more than 100 countries and regions worldwide.

Key Technical Specifications

Item	Parameter
Operating Weight	19,800 – 22,100 kg
Rated Net Power	108 kW (145 hp) @ 2,000 rpm
Engine Model	Cat C4.4 Electronic Injection Diesel Engine
Standard Bucket Capacity	0.9 – 1.3 m³
Maximum Digging Depth	6,710 mm
Maximum Horizontal Digging Reach	9,840 mm
Maximum Dump Height	6,510 mm
Hydraulic System Working Pressure	35 MPa
Fuel Tank Capacity	300 L
Hydraulic Oil Capacity	170 L
Gradeability	30°

Core Performance Advantages

1. High-Efficiency, Low-Consumption Power System

Equipped with the field-proven Cat C4.4 four-cylinder diesel engine, the 320GC delivers stable power output even in high-altitude (up to 3,000m above sea level) or 45℃ high-temperature operating environments. It integrates Caterpillar's exclusive adaptive fuel control technology, with a comprehensive fuel consumption of only 12-16 L/h under typical working conditions, 15-20% lower than the previous generation Cat 320D2 excavator. Built-in auto idle and auto engine shutdown functions automatically reduce engine speed or shut down the engine after a period of no operation, further cutting unnecessary fuel waste.

2. Smooth, Responsive Smart Hydraulic System

The 320GC adopts a load-sensing hydraulic system with on-demand flow distribution technology, which ensures smooth coordination of compound actions (such as simultaneous digging, swinging, and lifting) without jamming, improving operating efficiency by 10% compared to similar competing models. The system automatically switches between boom priority and swing priority modes according to actual working conditions, eliminating the need for manual adjustment by operators. The boom, stick, and bucket are all made of high-strength wear-resistant steel with a reinforced welding structure, which can adapt to harsh construction conditions such as rocky soil and construction waste handling.

Operator Comfort & Safety

The 320GC is fitted with a ROPS/FOPS (Roll-Over Protective Structure / Falling Object Protective Structure) certified sealed pressurized cab, with an internal operating noise of only 72 dB(A), 8% lower than competing products of the same class. The fully adjustable air suspension seat with lumbar support and adjustable armrests effectively reduces fatigue during long hours of operation. Ergonomic low-effort joysticks and an 8-inch high-definition LCD touchscreen provide intuitive access to real-time equipment parameters, fault alerts, and multimedia functions (Bluetooth connectivity, radio, etc.).

For safety, a high-definition rearview camera is standard, and a 360° surround-view camera system is optional to eliminate operating blind spots. The hydraulic lock lever ensures that the equipment cannot be operated when the lever is lifted, effectively preventing misoperation. Emergency exits, seatbelt alarms, and on-board fire extinguishers are also standard configurations.

Low Total Cost of Ownership (TCO)

One of the core highlights of the 320GC is its extremely low operating and maintenance costs:

Extended maintenance intervals: Engine oil and filter replacement every 500 operating hours, hydraulic return filter replacement every 1,000 hours, hydraulic oil replacement every 5,000 hours, and air filter replacement every 1,000 hours, reducing downtime caused by maintenance by 30% compared to similar models.
All maintenance access points are designed to be accessible at ground level, eliminating the need to climb onto the upper frame for routine maintenance, cutting maintenance time by half.
The standard Cat Product Link™ telematics system supports remote monitoring of equipment location, operating hours, fuel consumption, and fault codes, helping fleet managers arrange maintenance in advance and avoid unexpected breakdowns.

Typical Application Scenarios

The Caterpillar 320GC is suitable for a wide range of medium-duty construction scenarios:

Municipal engineering: Trenching, pipeline laying, road maintenance, landscaping
Infrastructure construction: Subgrade construction for highways and railways, earthwork for bridge projects
Real estate development: Foundation pit excavation, site leveling, construction waste removal
Light-duty mining and quarry operations: Material handling, topsoil stripping
Agricultural engineering: Farmland renovation, irrigation ditch excavation

After-sales Support

Caterpillar provides global unified after-sales support for the 320GC: users can enjoy 24/7 on-site maintenance services through Caterpillar's 2,000+ dealer outlets worldwide, with 100% original spare parts supply. Customized extended warranty packages, operator training programs, and flexible equipment financing solutions are also available to meet the diverse needs of different users.

Non flooded

No accident

Original product

Used Caterpillar 320GC Excavator

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