Used Excavator CAT 320GC

CAT 320 GC Excavator is a 20-ton-class hydraulic excavator engineered as a cost-effective solution for general-duty applications, balancing reliable digging power with significantly reduced fuel consumption and extended service intervals. It is widely deployed across municipal engineering, commercial construction, road and bridge projects, and general earthmoving operations where low hourly operating costs are prioritized.

Common Variations

320D2 / 320D2 GC: Predecessor models in Cat’s 20-ton class, established as durable and value-oriented workhorses, forming the foundation for the 320 GC’s enhancements.
320 GC: The core upgraded production platform featuring a Cat® C4.4 engine, advanced electro-hydraulic system, and a newly designed comfortable cab. It is built on a robust undercarriage with a reinforced carrier frame, specifically engineered to improve fuel efficiency by up to 20%, reduce maintenance costs by up to 20%, and deliver reliable performance for light to medium duty applications.
320 GC (China National IV): An emission-compliant sister variation meeting China National IV non-road emission standards, retaining the core GC performance metrics while designed for regions with strict environmental regulations.

Core Advantages & Features

Significantly Reduced Fuel Consumption: Powered by a Cat® C4.4 engine delivering 146 hp (109 kW), featuring Smart Mode that automatically adjusts engine and hydraulic power to excavation conditions. Combined with auto engine speed control and one-touch idle functions, this system achieves fuel savings of up to 20% compared to the 320D2 GC in similar applications.
Optimized Hydraulic System for Precision and Efficiency: Equipped with an advanced electro-hydraulic circuit and a priority valve that directs hydraulic pressure and flow where needed, accelerating cycle times for light to moderate loads. The main hydraulic system delivers a maximum flow of 442 L/min with equipment pressure up to 5,075 psi, providing smooth and precise control for accurate digging and loading.
Superior Stability and Robust Structure: Built over a reinforced chassis with a reach boom (5.7 m / 18’8″) and R2.9 stick (2.9 m / 9’6″), providing a stable foundation for general-duty operations. The operating weight is approximately 20,400 kg (45,000 lb) with a counterweight of 3.7 to 4.2 mt, ensuring excellent anti-tip stability during heavy lifts.
Lower Maintenance Costs and Extended Intervals: Designed for simplified servicing with all daily maintenance points accessible from ground level. Maintenance costs are reduced by up to 20% over 12,000 operating hours compared to the 320D2 model. Features include a new hydraulic oil filter with a 3,000-hour replacement interval (50% longer than previous designs) and an integrated vehicle health management system that provides proactive maintenance reminders.
Enhanced Operator Comfort and Reliability: Features a spacious, quiet cab with excellent visibility, reduced pillar sizes, a rearview camera, and ergonomic controls. The machine is engineered for reliable operation at altitudes up to 3,000 m (9,840 ft) without derating, with a high-temperature capability of 52°C (125°F) and cold-start capability down to -32°C (-25°F).