코마츠 PC 400

### KOMATSU PC400 / PC400LC‑8 – Specification #### 1. General - **Model**: Komatsu PC400 / PC400LC-8 (Crawler Excavator) - **Operating Weight**: **41,740–42,590 kg** (PC400‑8) - **Bucket Capacity (SAE heaped)**: **1.8 m³ (std)** (range 1.3–2.8 m³) - **Production Years**: 2008–2015 #### 2. Engine - **Brand / Model**: **Komatsu SAA6D125E‑5** - **Type**: 4‑cycle, water‑cooled, direct injection, turbocharged, aftercooled - **Cylinders**: **6 in‑line** - **Displacement**: **11.04 L** - **Rated Power (Gross)**: **270 kW / 362 HP @ 1,900 rpm** - **Rated Power (Net)**: **257 kW / 345 HP @ 1,900 rpm** - **Emission**: **EU Stage IIIA / Tier 3** - **Fuel Tank Capacity**: **650 L** #### 3. Hydraulic System - **Pumps**: 2 × variable‑displacement axial piston pumps - **System Pressure**: **370 bar** - **Max Flow**: **2 × 250 L/min = 500 L/min** - **Hydraulic Oil Tank**: **210 L** #### 4. Working Performance - **Max Digging Reach**: **11,000 mm** - **Max Digging Depth**: **7,700 mm** - **Max Dumping Height**: **7,920 mm** - **Bucket Breakout Force**: **222 kN** - **Arm Breakout Force**: **178 kN** - **Slewing Speed**: **10.5 rpm** - **Travel Speed**: **3.2 / 5.5 km/h** (low / high) - **Gradeability**: **35°** #### 5. Transport Dimensions (PC400‑8, std) - **Length**: **10,800 mm** - **Width**: **3,340 mm** (600 mm track shoes) - **Height (to cab top)**: **3,700 mm** - **Track Shoe Width**: **600 mm** (std) - **Ground Pressure**: **59.5 kPa** (600 mm shoes) #### 6. Undercarriage - **Track Type**: Heavy‑duty steel track - **Track Links**: **51** - **Sprocket / Idlers / Rollers**: Reinforced, long‑life #### 7. Electrical - **System Voltage**: **24V** - **Batteries**: 2 × 12V / 170Ah - **Alternator**: 24V / 50A #### 8. Standard Equipment - ROPS/FOPS cab with A/C & heater - Air suspension seat - Auto‑idle & one‑touch decel - Safety valves on boom/arm/bucket cylinders - KOMTRAX telematics