日立建机 ZX 50 U

HITACHI ZX50U Short Tail Mini Excavator Specifications 1. Basic Machine Parameters (Global Used Export Version ZX50U-2, Euro Stage IIIA / Tier3) Full Model: HITACHI ZAXIS ZX50 Short Radius Swing Compact Crawler Excavator Standard Operating Weight (ROPS air-con cab + 400mm rubber track + 3.0m boom + 1380mm standard arm + 0.14m³ bucket + front dozer + 75kg operator): 4730 kg Steel track version weight: 4810 kg Standard Heaped Bucket Capacity (ISO): 0.14 m³ Optional bucket range: 0.10 ~ 0.17 m³ Boom Length: 3000 mm Standard Stick Length: 1380 mm (Optional long arm: 1690 mm) Track Shoe Width: 400 mm rubber pad track (triple-grouser steel track optional) Track Gauge: 1600 mm Overall Undercarriage Full Width: 2000 mm Rear Tail Swing Radius: 1000 mm (short tail design, narrow-site friendly) Ground Contact Pressure (400mm rubber track): 34.2 kPa Minimum Ground Clearance: 340 mm Standard Dozer Blade Size: 2000 mm width × 390 mm height 2. Engine & Power Performance Engine Manufacturer: YANMAR (Japan) Engine Model: 4TNV88-BPV Inline 4-cylinder turbocharged water-cooled direct injection diesel Displacement: 3.318 L / 3318 cc Net Rated Power (ISO 9249 @ 2500 rpm): 29.8 kW (39.9 HP) Max Torque: 172 N·m @ 1400 rpm Fuel Tank Capacity: 70 L Hydraulic Oil Tank Volume: 62 L; Full system hydraulic oil volume: 95 L Engine Lubricating Oil Volume: 9.2 L Travel Speed: Low 2.6 km/h / High 4.5 km/h Swing Speed: 9.3 rpm Gradeability: 58% (30°) Max Bucket Breakout Force (ISO): 39.2 kN Max Arm Crowd Force (ISO): 28.5 kN Max Drawbar Traction Force: 46.8 kN 3. Hydraulic System (HIOS III Load Sensing System) Main Pumps: Dual variable displacement axial piston pumps Total main pump maximum combined flow: 142 L/min Main circuit relief pressure: 24.5 MPa Swing circuit relief pressure: 21.0 MPa Standard bidirectional auxiliary hydraulic max flow: 70 L/min Factory pre-installed proportional auxiliary piping for hydraulic breaker, auger, thumb grab Standard Functions: Straight-line travel, ISO / SAE control pattern switch, boom offset swing, auto two-speed travel, auto engine idle, Power / Eco dual working modes 4. Full Working Range Dimensions (mm, standard 1380mm arm + lowered dozer) Max Horizontal Digging Reach (Ground Level): 6000 Max Digging Depth: 3530 Max Vertical Wall Digging Depth: 2910 Max Digging Height: 5720 Max Dumping Height: 3980 Minimum Front Swing Radius: 2150 5. Overall Transport Dimensions (mm, standard bucket fitted, dozer installed) Total Transport Length: 5460 Total Transport Width: 2000 Overall Transport Height (cab top): 2530