斗山 DH55

# DOOSAN DH55 (Standard Version) — Specifications ### 1. Basic & Weight - **Model**: Doosan DH55 (DH55-V/DH55-7) - **Type**: Compact crawler excavator - **Operating Weight**: 5,300–5,500 kg - **Manufactured**: South Korea / China (Yantai, Shandong) ### 2. Engine - **Engine Model**: ISUZU 4JB1 / 4JG1 (or Yanmar 4TNV94L) - **Rated Power**: 40.5 kW (55 HP) @ 2,100 rpm - **Displacement**: ~3.0 L - **Emission**: Tier 2 / National III - **Cylinders**: 4-cylinder diesel ### 3. Performance - **Bucket Capacity**: 0.15–0.20 m³ (standard 0.175 m³) - **Bucket Digging Force**: 31.4 kN - **Arm Digging Force**: 24.5 kN - **Max Digging Depth**: 3,890–4,060 mm - **Max Digging Radius**: 6,100–6,170 mm - **Max Digging Height**: 5,330–6,918 mm - **Max Dump Clearance**: 3,630–5,032 mm - **Travel Speed**: Low: 2.4–2.6 km/h High: 3.8–4.5 km/h - **Swing Speed**: 9.2–11.5 rpm - **Gradeability**: 30° (58%) ### 4. Hydraulics - **Main Pump**: 2×variable displacement piston pumps - **Total Flow**: 2×55–60 L/min - **System Pressure**: 20.6–24.5 MPa - **Hydraulic Oil Capacity**: ~70–80 L ### 5. Dimensions (mm) - **Transport Dimensions (L×W×H)**: 5,940 × 1,880 × 2,565 mm - **Track Shoe Width**: 400 mm (standard) - **Track Gauge**: 1,480 mm - **Overall Track Width**: 2,050 mm - **Ground Clearance**: 350 mm - **Tail Swing Radius**: 1,650–1,700 mm ### 6. Capacities - **Fuel Tank**: 120 L - **Hydraulic Tank**: 80 L ### 7. Tracks - **Track Type**: Steel crawler - **Total Track Length**: 2,545–2,568 mm