卡特 320 C L

Product Overview The CAT 320C L is a 21-ton class crawler hydraulic excavator manufactured by Caterpillar Inc., an American company. The "L" designation indicates a long undercarriage for improved stability and lower ground pressure. This model was produced from approximately 2001 to 2005 as the successor to the 320B series. The 320C L remains popular in second-hand markets worldwide due to its proven reliability, mechanical engine (no DPF, no DEF), and robust construction. It is widely used in construction, excavation, road building, quarry operations, and general earthmoving. Key Specifications Operating Weight: 20,800 - 21,500 kg (45,800 - 47,400 lb) Engine Model: Cat 3066T / 3066 ATAAC Engine Net Power: 103 kW (138 hp) at 1,800-2,000 rpm Bucket Capacity: 0.8 - 1.2 m³ (29-42 cu ft) Max Digging Depth: 6,550 mm (21‘6“) Max Digging Reach: 9,710 mm (31’10”) Max Dumping Height: 6,770 mm (22‘3“) Travel Speed: 5.5 km/h (3.4 mph) Swing Speed: 11.5 rpm Main Pump Flow: 205 L/min (54.1 gpm) Pilot Pump Flow: 41 L/min (10.8 gpm) Fuel Tank: 284 - 320 L (75-85 gal) Transport LxWxH: 9,390 x 2,800 x 3,050 mm Track Shoe Width: 600 mm Track Length: 4,070 mm Track Gauge: 2,200 mm Tail Swing Radius: 2,770 mm Ground Clearance: 460 mm Engine The 320C L is powered by the Cat 3066T ATAAC (Air-To-Air AfterCooling) diesel engine. This is a 6.37 liter, 6-cylinder, turbocharged engine. Key advantages for export markets: mechanical fuel system with low-pressure design, making it tolerant of variable fuel quality in emerging markets. Meets Tier 2 / Stage II emission standards - NO DPF, NO DEF required, simplifying maintenance. Hydraulic System Advanced hydraulic system with variable displacement piston pumps. System pressures: equipment and travel circuits at 34,300 kPa (4,974 psi), swing circuit at 25,000 kPa (3,626 psi). Bucket digging force: 132 kN (29,670 lb). Arm tear-out force: 99 kN (22,260 lb). Drawbar pull: 196 kN (44,060 lb). Undercarriage Long undercarriage (L) provides extended track length for superior stability. Track rollers: 7 per side. Carrier rollers: 2 per side. Sealed and lubricated tracks reduce pin and bushing wear, extending undercarriage life. Capacities Fuel Tank: 284-320 L Hydraulic System: 240 L Engine Oil: 30 L Cooling System: 30 L Operator Cab ROPS certified cab with large glass areas for good visibility. Features include adjustable suspension seat, pilot-operated joystick controls, digital monitor display for machine status (engine RPM, temperature, fuel level, service reminders), heater, and defroster. Hydraulic lock lever for safe operation. Safety Features ROPS cab, hydraulic lock lever, automatic swing parking brake, anti-slip plates on track frames, reverse alarm, ground-level engine shutoff switch. Applications General construction, excavation and trenching, road building, quarry operations, utility installation (pipe laying, cable trenching), site preparation, material handling, landscaping. Advantages Proven, reliable 3066T engine - no DPF or DEF required. Long undercarriage for excellent stability. Mechanical fuel system tolerant of low-quality fuel. Strong resale value in used equipment markets. Global Cat dealer network for parts and service. Summary The CAT 320C L is a reliable 21-ton crawler excavator suitable for construction and excavation worldwide. Its mechanical engine (Tier 2) makes it ideal for export to markets with lower fuel quality. For second-hand units, inspection reports and working videos available upon request.