コマツ（小松製作所） PC 400

Engine (PC400-8) • Model: Komatsu SAA6D125E-5 • Type: 6-cylinder, water-cooled, direct injection, turbocharged & aftercooled • Displacement: 11.04 L • Bore × Stroke: 125 × 150 mm • Rated Power: ◦ Gross: 270 kW (362 HP) @ 1900 rpm ◦ Net: 257 kW (345 HP) @ 1900 rpm • Emission: Tier 3 / Stage IIIA 2. Operating Weight • PC400-8: 41,740–42,590 kg (92,020–93,890 lb) • PC400LC-8 (long crawler): 42,290–43,200 kg (93,230–95,240 lb) • PC400-11: 44,300–45,600 3. Dimensions (Standard) • Overall length: 11,900 mm (469 in) • Overall width: 3,430 mm (135 in) • Height (cab): 3,290 mm (130 in) • Tail swing radius: 3,605 mm (142 in) • Ground clearance: 567 mm (22.3 in) • Track gauge: 2,740 mm • Shoe width: 600/700/800 mm (optional) 4. Hydraulic System • Main pump: 2 × variable displacement axial piston pumps • Total flow: 690 L/min (182 gpm) • Relief pressures: ◦ Boom/arm/bucket: 37.3 MPa (5,410 psi) ◦ Swing: 27.9 MPa (4,050 psi) ◦ Travel: 37.3 MPa (5,410 psi) ◦ Pilot: 3.2 MPa • Hydraulic tank: 248 L • System capacity: ~270 L 5. Performance (Standard Boom/Arm) Digging Forces (ISO) • Bucket breakout force: 239–277 kN (53,790–62,170 lbf) • Arm crowd force: 184–245 kN (41,450–55,120 lbf) Digging Dimensions (Typical) • Max digging height: 10,800–11,500 mm • Max dumping height: 7,600–8,200 mm • Max digging depth: 7,300–8,000 mm • Max reach at ground level: 11,200–12,000 mm • Swing speed: 9.3 rpm • Travel speed: ◦ Low: 3.0 km/h ◦ High: 5.0 km/h 6. Bucket & Attachments • Standard bucket capacity: 1.9–2.4 m³ (heaped) • Optional: Heavy-duty rock bucket, ditch cleaning bucket, hydraulic breaker, grapple, etc. 7. Capacities • Fuel tank: 650 L (172 gal) • Engine oil: 37 L • Coolant: 36 L • Swing drive: 20 L • Final drive (each): 10.5 L 8. Applications • Mining, quarrying, heavy construction, large-scale earthmoving, road building, bulk material handling