Recently, the new generation of CAT 320GC medium-sized hydraulic excavator, which meets the fourth-generation Euro IV standards, has been fully launched into the domestic market. It is specifically designed for general working conditions such as earthwork, infrastructure construction, municipal projects, and sand and gravel transportation. With four core advantages - no need for urea, ultra-low fuel consumption, low maintenance costs, and all-day uninterrupted operation - it balances the powerful construction performance with the full-cycle operational costs, making it the preferred model for small and medium-sized project owners, Cat.
The power end is equipped with the Cat C4.4 dedicated engine, with a net power of 109.1kW, compatible with the Euro IV emission after-treatment system. It completely eliminates the urea injection process and the mandatory shutdown for regeneration. Construction on the site is uninterrupted, and the attendance efficiency is significantly improved. It is equipped with an intelligent electro-hydraulic control system and a dual-power operation mode: the Power heavy-duty mode is suitable for loading, deep excavation of hard soil; the Smart intelligent mode automatically matches the load, with the comprehensive fuel consumption reduced by up to 20% compared to the previous generation. The measured hourly fuel consumption under standard conditions is as low as 12L or less, significantly reducing the fuel expenditure for long-term shift operations.
The total machine working weight is 20.6 tons, equipped with a 1.0m³ large-capacity bucket, with a maximum digging depth of 6630mm. The digging force is powerful, the movements are smooth and precise, and it is suitable for various scenarios such as site leveling, trench excavation, sand and gravel transportation, and crushing operations. The overall structure of the machine uses a thicker and stronger frame from Caterpillar and wear-resistant hydraulic pipelines, reducing leakage faults and ensuring a high durability of the machine. The long-term high-frequency operation has a lower failure rate.
The maintenance system has been comprehensively optimized, achieving synchronized long-term maintenance of filters: the fuel filter is replaced every 1000 hours, the hydraulic return oil filter is extended to 3000 hours, and multiple redundant filters are eliminated. The overall maintenance cost has decreased by 20%. All inspection points for oil, coolant, oil-water separator, etc. are concentrated on the side of the machine body, and daily inspections can be completed on the ground, saving 30% of maintenance time and reducing the loss of downtime due to maintenance.
The driver's cabin has been upgraded to a 10-inch high-definition touch screen, with a simplified UI interface. The rear-view panoramic camera monitors the surrounding of the machine in real time, and the suspended damping seat is combined with a quiet cabin. Long-term construction significantly reduces operator fatigue. The machine is equipped with the Cat intelligent remote management system, allowing real-time viewing of fuel consumption, working hours, and fault warnings, providing a clear overview of equipment management.
According to the product manager of Caterpillar, CAT 320GC is positioned as a general economic 20-ton excavator, not blindly adding high-end configurations. It focuses on the core needs of shift operators and small and medium-sized project users, achieving the ultimate goals of fuel saving, worry-free operation, cost reduction, and durability. It is suitable for most general working conditions such as municipal renovation, rural infrastructure construction, site leveling, mining sand and gravel transportation, and landscaping. It helps engineering customers reduce operating costs and shorten the investment return cycle.
Industry experts evaluate that the current construction machinery industry has entered the era of precise profitability. CAT 320GC precisely meets the demand for cost reduction of small and medium-sized owners. Without urea after-treatment, long maintenance cycle, and low fuel consumption, it has three differentiated advantages: no urea after-treatment, long maintenance cycle, and low fuel consumption. This will redefine the competitive landscape of general 20-ton excavators and provide a high-quality and cost-effective construction solution for the domestic infrastructure engineering market.