CAT 320 D

The CAT 320D is a 20-ton class medium-sized tracked hydraulic excavator manufactured by Caterpillar, belonging to the D-series product line. Powered by a Caterpillar C6.4 four-cylinder electronically controlled common rail diesel engine, it delivers a rated power of 103kW, offering stable power output and strong durability. It adopts Caterpillar self-developed closed-loop hydraulic system with dual-pump confluence technology, which enables smooth compound movements and powerful digging force. Its standard working weight is about 20 to 21 tons, matched with a 0.9 cubic meter standard bucket. The standard configuration includes a 5.7m boom and a 2.9m stick. The L version features extended tracks for larger ground contact area and better stability on soft ground. Equipped with an onboard monitoring display, operators can switch working modes to adapt to light, standard and heavy-duty tasks. Widely used in earthwork excavation, road construction, municipal engineering and material handling. This model enjoys a large market stock, reliable structure and mature spare parts supply, making it a classic workhorse for general construction projects. It is suitable for medium-duty operations, while long-time heavy rock breaking needs reinforced hydraulic pipelines and structural components.