小松 PC 400

### KOMATSU PC400 (Crawler Excavator) – Specifications #### General - **Model**: PC400-7 / PC400-8 - **Operating weight**: **40,200–42,500 kg** - **Standard bucket capacity**: **1.9–2.1 m³** (SAE heaped) - **Counterweight**: **8,800 kg** #### Engine - **Manufacturer**: **Komatsu** - **Model**: **SAA6D125E-5** (PC400-8) / **S6D125E-2** (PC400-7) - **Net power**: **257 kW (345 hp) @ 1,900 rpm** - **Emission standard**: **Tier 3 / Euro 3** (PC400-8); **Tier 2 / Euro 2** (PC400-7) - **Fuel tank capacity**: **600 L** #### Hydraulic System - **Main pumps**: 2 × variable displacement axial piston pumps - **Max total flow**: **2 × 360 L/min = 720 L/min** - **System pressure**: **34.3 MPa** (37.8 MPa with boost) - **Swing speed**: **9.3 rpm** #### Dimensions (mm) - **Transport length**: **11,930** - **Transport width**: **3,340** - **Transport height**: **3,490** - **Track shoe width**: **600 mm** (std) - **Ground pressure**: **69 kPa** #### Performance - **Max digging depth**: **7,790 mm** - **Max horizontal reach**: **11,890 mm** - **Bucket breakout force**: **262 kN** (288 kN boost) - **Arm digging force**: **202 kN** (222 kN boost) - **Travel speed (1st/2nd)**: **3.2 / 5.5 km/h** - **Gradeability**: **35° (70%)**