斗山 DH 55

### DOOSAN DH55 (5-ton Mini Excavator) – Official English Specs #### 1. Basic Information - **Brand**: Doosan (South Korea) - **Model**: DH55 (DH55‑7 / DH55GOLD) - **Type**: 5‑ton tracked mini excavator - **Operating weight**: **5,250 kg** - **Bucket capacity (SAE heaped)**: **0.175 m³** (range 0.067–0.17 m³) #### 2. Engine - **Model**: **Isuzu CC‑4JG1** (4‑cylinder diesel) - **Rated power**: **40.5 kW (55 PS) @ 2,100 rpm** - **Emission**: **Stage IIIA / Euro 3** - **Fuel tank**: **130 L** #### 3. Performance - **Max digging depth**: **3,800 mm** - **Max horizontal reach**: **5,900 mm** - **Max dump height**: **4,200 mm** - **Bucket digging force**: **31.4 kN** - **Arm digging force**: **24.5 kN** - **Swing speed**: **9.9 rpm** - **Travel speed**: **2.21 km/h (low) / 3.76 km/h (high)** - **Gradeability**: **30°** #### 4. Hydraulic System - **Main pump**: Variable displacement axial piston pump - **Main pump flow**: **2 × 55 L/min** - **System pressure**: **20.6 MPa (206 bar)** #### 5. Dimensions (L × W × H) - **Transport dimensions**: **5,940 × 1,880 × 2,565 mm** - **Track width**: **400 mm** - **Tail swing radius**: **1,650 mm**