履带式挖掘机 Caterpillar 349

# Next Generation Cat® 349 Hydraulic Excavator


## Weights & Bucket
- Operating weight: **47,700 ~ 49,400 kg**（Reach boom, R3.35m stick, standard undercarriage）
- Standard bucket capacity: **2.41 m³ (SD bucket)**
- Boom: Reach boom **6.9 m**
- Stick: **R3.35 m**

## Engine
- Model: **Cat C13** 6-cylinder turbo diesel
- Net power (ISO 9249): **316 kW (424 hp) @1,800 rpm**
- Gross power (ISO 14396): **317 kW (425 hp)**
- Displacement: **12.5 L**
- Bore × Stroke: **130 mm × 157 mm**
- Emission: Tier 4 Final / China Stage IV / Stage V（依销售区域）

## Hydraulics
- Max main pump flow: **779 L/min (389 L/min × 2 pumps)**
- Implement circuit pressure: **35,000 kPa (350 bar)**
- Lift mode pressure: **38,000 kPa (380 bar)**
- Travel circuit pressure: **26,000 kPa (260 bar)**
- Swing circuit pressure: **35,000 kPa (350 bar)**

## Swing
- Swing speed: **8.44 rpm**
- Max swing torque: **187 kN·m**

## Digging Performance
- Bucket digging force: **229 kN**
- Stick digging force: **193 kN**
- Max digging depth: **7700 mm**
- Max ground reach: **11,770 mm**
- Max cutting height: **10,730 mm**
- Max dump height: **7,390 mm**

## Travel & Undercarriage
- Max travel speed: **4.8 km/h**
- Max drawbar pull: **335 kN**
- Max gradeability: **35° (70%)**
- Standard track shoe: **750 mm**; optional 600/850 mm
- Track gauge: **2740 mm**

## Service Refill Capacities
- Fuel tank: **650 L**
- Hydraulic tank: **217 L**
- Full hydraulic system: **550 L**
- Engine oil: **40 L**
- Cooling system: **52 L**