20t Excavatora Caterpillar Cat Hydraulic Used Crawler Cat320 Excavator

Detailed description of Caterpillar 320CL excavator:

1. Basic parameters and performance

Tonnage and weight: It is a medium-sized excavator of 20-22 tons, and the working weight of the whole machine is about 21,800-22,500 kg.

Bucket capacity: The standard bucket capacity is 0.9-1.2 m³ (rock bucket, wide bucket, etc. can be selected according to working conditions).

Engine configuration:

Equipped with Caterpillar C6.6 ACERT electronic control engine, rated power 123 kW (about 165 horsepower)/1800 rpm, providing high torque output at low speed.

The fuel tank capacity is about 400 L, which supports long-term continuous operation.

Environmental protection standards: It meets Tier 3/National III emission standards, optimizes combustion efficiency through ACERT technology, and reduces particulate matter and nitrogen oxide emissions.

2. Core performance features

Hydraulic system:

Load sensing hydraulic system (Load Sensing System) is adopted, the maximum flow of the main pump is 250 L/min, and the main overflow pressure is 34.3 MPa, which realizes precise flow distribution and efficient energy consumption control.

The boom/arm regeneration circuit design reduces the energy loss of no-load oil return and improves the smoothness and working efficiency of compound movements.

Digging capacity:

The maximum digging depth is about 6,700 mm, the maximum digging radius is about 10,000 mm, and the bucket digging force is about 155 kN (data vary slightly due to the configuration of accessories).

Travel speed is 5.5 km/h, and the rotation speed is 11.5 rpm, which is suitable for complex terrain and narrow space operations.

3. Structure and design

Stability and durability:

The track width is 600 mm, and the ground length is optimized to enhance the stability of wetland and slope operations.

Reinforced box-type structure boom and arm, key parts use high tensile strength steel plates to extend service life.

Cab and operation:

ROPS/FOPS certified cab, equipped with air suspension seat, 7-inch LCD display and multi-function joystick, supports personalized parameter settings.

Low noise design (cab noise ≤ 68 dB), with air conditioning system to improve operating comfort.

4. Market positioning and applicable scenarios

Versatility: Support hydraulic quick-change interface, adapt to buckets, hydraulic hammers, grabs, thumb clamps and other accessories, suitable for:

Mining (ore loading, platform finishing)

Urban construction (foundation pit excavation, pipeline laying)

Agriculture, forestry and water conservancy (river cleaning, land reclamation)

Economy: Through intelligent power management (Eco Mode) and fuel optimization technology, the comprehensive fuel consumption is reduced by 8-12% compared with the old model.

Supplementary explanation

Differences from 320BL/D:

320CL is positioned as a "standard long arm version" (possibly a feature of the "CL" series). Compared with 320BL, the hydraulic system is upgraded to load-sensitive technology, which makes the control more precise;

Compared with the 320D series, 320CL pays more attention to the balance between economy and durability, is suitable for medium-intensity working conditions, and has lower maintenance costs.

Maintenance advantages: centralized filter element layout, visual oil detection port, simplifying daily maintenance process and reducing downtime.