日立建机 55u

1. Model Overview The Hitachi ZX55U-6 is a 5.5-tonne mini excavator with short-tail swing design. Rear swing radius is 1,000 mm, allowing safe work near walls. Manufactured by Hitachi Construction Machinery. Complies with EU Stage V emissions. 2. Core Specifications Parameter Value Operating Weight 5,140 - 5,480 kg Bucket Capacity 0.14 - 0.16 m³ Engine Model Yanmar 4TNV88C (4-cylinder diesel) Net Power 29.1 kW @ 2,000 rpm Displacement 2.189 L 3. Hydraulic System Parameter Value Operating Pressure 24.5 MPa Bucket Digging Force 36.9 kN Auxiliary Flow Standard circuit 4. Performance Parameter Value Travel Speed - High 4.2 km/h Travel Speed - Low 2.5 km/h Max Digging Depth 3,530 mm Max Reach at Ground 5,820 mm 5. Dimensions Parameter Value Transport Length 5,520 mm Transport Width 2,000 mm Transport Height 2,530 mm Track Shoe Width 400 mm Rear Swing Radius 1,000 mm 6. Fluid Capacities Item Capacity Fuel Tank 70 L Hydraulic Tank 51 L 7. Key Features Short Tail Swing: 1,000 mm rear radius allows work against walls without collision. Stage V Engine: Yanmar 4TNV88C diesel with EGR and common rail system. Durable Build: Reinforced front joints and boom cylinder protection. Operator Cab: LCD monitor, ergonomic controls, good visibility. Dozer Blade: Standard with float function; 90mm longer than previous model. Boom Swing: 80° left / 60° right for offset digging. Easy Maintenance: Wide-opening covers, sloped track frames. 8. Standard Equipment Yanmar diesel, pilot controls, auxiliary lines, rubber tracks (400mm), ROPS/FOPS cab, LCD monitor, dozer blade with float. 9. Optional Equipment Air conditioning, long arm (1.69m), auxiliary flow selector valve, hydraulic quick coupler. 10. Working Ranges by Arm Arm Length Digging Depth Reach at Ground 1.38m 3,530 mm 5,820 mm 1.69m 3,830 mm 6,130 mm 11. Typical Applications Urban construction, landscaping, utility installation, foundation work, indoor demolition, rental fleet, agricultural drainage. 12. Regional Compliance Europe: EU Stage V. North America: EPA Tier 4 Final. Other markets: Stage IIIA (ZX55U-5A). Contact local Hitachi dealer for region-specific details.