日立建机 ZX 120

### Hitachi ZX120 – Hydraulic Excavator (English, Verified) #### 1. Basic Data - **Model**: Hitachi ZX120 (Zaxis 120) - **Type**: Crawler Hydraulic Excavator - **Operating Weight**: **12,200 kg (26,896 lb)** - **Bucket Capacity (ISO)**: **0.52 m³ (0.68 yd³)** - **Brand**: Hitachi (Japan) #### 2. Engine - **Model**: Isuzu **CC-4BG1TC** (turbocharged, intercooled) - **Rated Power**: **66 kW (90 PS) @ 2,150 rpm** - **Displacement**: **4.329 L** - **Cylinders**: 4, water-cooled, direct injection #### 3. Working Performance - **Max Digging Force (Bucket)**: **99 kN** - **Arm Digging Force**: **65 kN** - **Swing Speed**: **13.7 rpm** - **Travel Speed (High/Low)**: **5.5 / 3.4 km/h** - **Gradeability**: **70% (35°)** - **Ground Pressure**: **37 kPa** #### 4. Hydraulic System - **Main Pumps**: 2 × variable displacement piston pumps + 1 gear pump - **Relief Pressure**: **34.3 MPa (4,980 psi)** - **Total Pump Flow**: **210 L/min (55.5 gpm)** #### 5. Dimensions (Standard Boom/Stick) - **Boom Length**: **4,600 mm (15 ft 1 in)** - **Stick Length**: **2,520 mm (8 ft 3 in)** - **Max Digging Depth**: **5,940 mm (19 ft 6 in)** - **Max Reach (Ground)**: **8,270 mm (27 ft 2 in)** - **Transport Length**: **7,610 mm** - **Transport Width**: **2,490 mm** - **Transport Height**: **2,710 mm** - **Track Shoe Width**: **500 mm** #### 6. Fluid Capacities - **Fuel Tank**: **250 L (66 gal)** - **Hydraulic Tank**: **69 L (18.2 gal)** - **Engine Oil**: **15.8 L (4.2 gal)**