Hitachi ZX 55 UR

# HITACHI ZX55UR‑2 Technical Specifications - **Machine Type**: Ultra‑short‑tail‑swing Crawler Hydraulic Mini Excavator - **Operating Weight**: 5300 kg (cab version) - **Bucket Capacity**: 0.19 m³ (ISO heaped) - **Swing Speed**: 9.0 rpm - **Max Travel Speed**: 2.7‑4.5 km/h - **Ground Pressure**: 30.0 kPa ## Engine - **Model**: Kubota V2403‑DI‑K2A, 4‑cylinder water‑cooled naturally aspirated diesel - **Rated Net Power**: 27.1 kW @2400 rpm - **Displacement**: 2434 cc (2.434 L) - **Emission Standard**: Tier 2 / Stage IIA - **Fuel Tank Capacity**: 70 L ## Hydraulic System - **Main Pump**: Variable‑displacement axial piston pump - **Total Max Flow**: 118 L/min - **Bucket Digging Force**: 41.2 kN - **Arm Digging Force**: 27.5 kN - **System Relief Pressure**: 24.5 MPa ## Working Range - **Max Digging Depth**: 4020 mm - **Max Ground Reach**: 5760 mm - **Max Dumping Height**: 4730 mm ## Transport Dimensions (L×W×H) - **Length**: 5160 mm - **Width**: 2000 mm - **Height**: 2570 mm ## Undercarriage - **Track Shoe Width**: 400 mm - **Track Gauge**: 1600 mm