CAT 320 C L

1. Model Overview The CAT 320CL is a 20-ton class tracked hydraulic excavator from Caterpillar's 300 series. The "C" denotes the C-series, and "L" stands for Long Undercarriage, which provides enhanced working stability. This model is widely used in earthmoving, construction, quarrying, and general excavation projects. It is known for its reliability, durability, and ease of maintenance. 2. Core Specifications Parameter Value Operating Weight 21,415 kg (approx. 21.4 tons) Bucket Capacity 0.8 - 1.2 m³ Engine Model Caterpillar 3066 ATAAC Rated Power 110 kW @ 1,800 rpm (approx. 147 hp) Displacement 6.4 L 3. Performance Specifications Parameter Value Travel Speed 3.4 / 5.5 km/h (two-speed) Swing Speed 11.5 rpm Bucket Digging Force 132 kN Arm Digging Force 99 kN Ground Pressure 44.1 kPa 4. Hydraulic System Parameter Value Main Pump Max Flow 205 L/min Working Hydraulic Circuit 34.3 MPa Travel Hydraulic Circuit 34.3 MPa Swing Hydraulic Circuit 26 MPa Pilot Circuit 4.12 MPa The hydraulic system uses load sensing technology to automatically adjust flow and pressure based on task requirements, improving work efficiency. 5. Fluid Capacities Item Capacity Fuel Tank 320 L Hydraulic Oil Tank 120 L Total Hydraulic System 200 L Engine Oil 30 L Coolant 24 L 6. Dimensions Item Measurement (mm) Transport Length 9,390 Transport Width 2,980 Transport Height 3,050 Track Length 4,450 Track Shoe Width 600 Track Gauge 2,380 Tail Swing Radius 2,770 Minimum Ground Clearance 460 7. Working Ranges Item Measurement (mm) Max Digging Depth 6,550 Max Reach at Ground Level 9,710 Max Digging Height 9,440 Max Dumping Height 6,670 Max Vertical Digging Depth 5,440 8. Key Features Engine and Power Equipped with the Cat 3066 ATAAC turbocharged air-to-air aftercooled diesel engine, delivering stable power output with optimized fuel economy. Structure and Durability The boom, arm, and undercarriage are reinforced for demanding working conditions. Operator Comfort The cab is ergonomically designed with air conditioning, good noise and vibration control, and excellent visibility. Maintenance Accessibility Service points are located at ground level for easy daily checks and maintenance, reducing machine downtime. Safety Features Includes ROPS/FOPS certified cab, anti-slip steps, hydraulic lock, and emergency engine shut-off. 9. Typical Applications Earthmoving and grading Foundation and road construction Quarry and mining operations Demolition (with appropriate attachments) Agricultural irrigation and material handling 10. Production Period The CAT 320CL was primarily produced between 2003 and 2005. Some market listings may show later years such as 2015 or 2017, but the actual mass production period for the C-series was roughly 2001 to 2006. Machines labeled with years after 2015 should be verified carefully.