CAT320D extended arm second-hand excavator

The CAT320D extended-reach excavator offers numerous advantages in terms of power performance, operating range, operator comfort, and durability, as follows: Powerful and Efficient Excellent Engine Performance: Equipped with a Caterpillar C6.4 ACERT engine rated at 103 kW, its powerful output provides ample power for a variety of excavator operations, ensuring easy operation even in challenging conditions such as excavating hard soil and rock. Advanced Hydraulic System: Utilizing a Caterpillar axial piston pump + pilot pump as the main pump, the main pump boasts a maximum flow rate of 404 L/min. This increases the hydraulic system pressure to 35,000 kPa, enabling bucket digging forces of up to 140.1 kN and arm digging forces of up to 106.4 kN. A hydraulic cross-sensing system maximizes engine power, increasing implement and pivot speeds, boosting productivity. Wide Operating Range: The extended boom design further expands the operating range, achieving a maximum digging radius of 9,850 mm, a maximum digging depth of 6,710 mm, and a maximum digging height of 9,840 mm, meeting diverse working environments and digging requirements at varying heights and depths. Comfortable and Convenient Operation The rationally designed cab: The radiator is positioned on the side of the cab, allowing outside air to enter the engine compartment from the operator’s side, while hot air and engine noise are exhausted from the opposite side. This reduces heat and noise transmitted to the operator and improves operating comfort. Flexible Operation: The pilot pump is independent of the main pump, controlling the front linkage, swing, and travel operations for more flexible and precise operation. Furthermore, the automatic engine speed control features a one-touch control function that automatically reduces engine speed under no-load or light-load conditions, improving fuel efficiency and reducing noise levels. Excellent Durability and Maintenance Durable Components: The radially sealed air filter utilizes a double-layer filter element for enhanced filtration efficiency and effective engine protection. Boom and stick regeneration circuits conserve energy during boom-down and stick-retract operations, reducing cycle time and pressure loss, while also helping to extend component life. Additionally, hydraulic cylinder snubbers, located at the rod end of the boom cylinder and both ends of the stick cylinder, dampen vibration and reduce noise levels, extending component life. Easy Maintenance: The Cat 320D is relatively simple and easy to maintain. Users can perform routine and scheduled maintenance according to the instructions in the manual to ensure proper operation and extend the life of the excavator.