卡特 349 D

### Caterpillar 349D Hydraulic Excavator Specifications #### 1. Engine - **Model**: Cat® C13 ACERT™ (6-cylinder, diesel) - **Net Power**: 283 kW (380 hp) @ 1,800 rpm (ISO 9249 / 80/1269/EEC) - **Displacement**: 12.5 L (762.8 cu in) - **Bore × Stroke**: 130 mm × 157 mm (5.2 in × 6.2 in) #### 2. Operating Weights - **Operating Weight**: 44,856 – 51,073 kg (98,891 – 112,597 lb) - **Standard Weight**: 46,285 kg (102,041 lb) #### 3. Bucket & Digging - **Bucket Capacity**: 1.8 – 3.11 m³ (2.35 – 4.07 cu yd) - **Boom Length**: 6,550 / 6,900 / 7,400 mm (21.5 / 22.6 / 24.3 ft) - **Stick Length**: 3,350 / 3,900 / 4,300 mm (11.0 / 12.8 / 14.1 ft) #### 4. Hydraulic System - **Main Pump Flow**: 734 L/min (193.9 gal/min) - **Max Pressure (Normal/Travel)**: 35,000 kPa (4,975 psi) - **Swing Pressure**: 31,400 kPa (4,554 psi) - **Pilot System Flow/Pressure**: 43 L/min (11.36 gal/min) / 4,110 kPa (595 psi) #### 5. Swing & Travel - **Swing Speed**: 8.7 rpm - **Swing Torque**: 149 kN·m (109,897 lb-ft) - **Travel Speed**: 4.5 km/h (2.8 mph) #### 6. Undercarriage (Standard) - **Track Width**: 750 mm (29.5 in) - **Track Gauge**: 2,740 mm (9 ft) - **Track Rollers (Each Side)**: 8 - **Carrier Rollers (Each Side)**: 2 - **Track Shoes (Each Side)**: 49 #### 7. Dimensions (Transport) - **Length × Width × Height**: 12,450 × 3,640 × 3,680 mm (40.8 × 11.9 × 12.1 ft) - **Rear Swing Radius**: 3,770 mm (12.4 ft) #### 8. Service Capacities - **Fuel Tank**: 705 L (186.3 gal) - **Hydraulic Tank**: 243 L (64.2 gal) - **Engine Oil**: 42 L (11.1 gal) - **Cooling System**: 35.5 L (9.4 gal)