日立建机 ZX 50 U

# HITACHI ZX50U-5 Mini Hydraulic Excavator Specification ## 1. Basic Machine Data - Model: HITACHI ZX50U-5 Short Tail Swing Mini Excavator - Standard Operating Weight (Cab): 5060 kg - Standard Heaped Bucket Capacity: 0.13 m³ - Standard Track Shoe Width: 400 mm (Rubber track standard, steel track optional) - Ground Contact Pressure: 31 kPa - Gradeability: 30° - Boom swing angle: Left 80° / Right 60° ## 2. Engine System - Engine Brand & Model: YANMAR 4TNV88C 4-cylinder diesel engine - Engine Type: Water-cooled, 4-stroke, In-line 4-cylinder common rail direct injection diesel - Displacement: 2189 cc (2.189 L) - Rated Net Power (ISO 9249): 27.1 kW / 2400 rpm (36.9 HP) - Max Torque: 135.8 N·m / 1560 rpm - Fuel Tank Volume: 42 L - Emission Standard: EU Stage V / Tier4 Final, equipped with DPF particulate filter - Fuel Consumption: 2.8 ~ 3.6 L/h ## 3. Hydraulic & Travel Performance - Main Pump: Closed center load sensing dual variable displacement piston pump + gear pump composite hydraulic system - Max Total Pump Flow: 120 L/min - Max Auxiliary Hydraulic Flow: 87.5 L/min - Main Circuit Relief Pressure: 24.5 MPa - Travel Speed (High / Low): 4.2 km/h / 2.5 km/h - Swing Speed: 9.0 rpm - Max Bucket Digging Force: 36.4 kN - Standard dozer blade equipped for leveling and stabilization ## 4. Working Range Dimensions (Unit: mm) - Max Digging Depth: 3830 mm - Max Vertical Wall Digging Depth: 3100 mm - Max Ground Digging Reach: 6130 mm - Max Dumping Height: 3950 mm - Max Cutting Height: 5640 mm ## 5. Overall Transport Dimensions (L × W × H, mm) - Overall Transport Length: 5470 mm - Overall Transport Width: 2000 mm - Overall Transport Height (Cab Top): 2530 mm