Used Caterpillar 320C Hydraulic Crawler Excavator for Construction Projects

Used Excavator

Product Detail

The Used Caterpillar 320C Hydraulic Crawler Excavator is a proven 21-ton class crawler digger purpose-built for construction projects — including building site preparation, road construction, foundation excavation, trenching, and urban infrastructure development. Powered by the original Cat 3066T turbocharged diesel engine (103 kW / 138 hp) and matched with a mature load-sensing hydraulic system, this second-hand 320C delivers the reliable cycle performance, strong breakout force, and low fuel consumption that contractors depend on for daily construction productivity.

Fully inspected and well-maintained at Tonkey Machinery's Jinan factory, with original core parts retained, low wear verified, and all filters, fluids, and grease points refreshed prior to export. No major overhaul or structural repairs reported. A cost-effective, ready-to-work choice for construction contractors worldwide seeking a dependable 21-ton Cat excavator with worldwide parts support and strong resale value.

Recommended construction applications: Building site earthmoving · Road construction · Foundation excavation · Trenching for utilities · Urban infrastructure · Landscaping

Specifications

Cat 320C — Technical Specifications

Item	Specification
Machine Type	Crawler Excavator (Backhoe)
Operating Weight	20,720 kg (~21 t)
Bucket Capacity	0.8 – 1.2 m³ (Standard 1.0 m³)
Boom / Stick Length	5.4 m / 2.9 m
Engine Model	Cat 3066T
Engine Type	Inline 6-cylinder, water-cooled, turbocharged diesel
Net Rated Power	103 kW (138 hp) @ 2,200 rpm
Displacement	6.0 L
Bore × Stroke	102 × 122 mm
Main Pump Flow	2 × 105 L/min (Total 210 L/min)
Main Relief Pressure	34.3 MPa (350 bar)
Stick Digging Force	120 kN
Bucket Digging Force	140 kN
Max Digging Reach	9,720 mm
Max Digging Depth	6,610 mm
Max Dumping Height	4,770 mm
Transport Dimensions (L×W×H)	9,500 × 2,750 × 2,970 mm
Standard Track Shoe Width	500 mm
Travel Speed (High / Low)	5.5 / 3.5 km/h
Swing Speed	11 rpm
Swing Torque	18.5 kN·m
Fuel Tank	340 L
Hydraulic Tank	145 L

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Used Caterpillar 320C Hydraulic Crawler Excavator for Construction Projects

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