日立建机 ZX 70

HITACHI ZX70 7-ton Compact Crawler Excavator Specifications 1. Basic Machine Information Model: HITACHI ZX70 (Standard Short Tail Swing Version) Machine Type: 7-ton Short Tail Swing Compact Crawler Excavator Standard Operating Weight: 6,700 kg Standard ISO Heaped Bucket Capacity: 0.33 m³ Standard Boom Length: 3,320 mm Standard Stick (Arm) Length: 1,710 mm Standard Track Shoe Width: 450 mm triple-grouser steel track Ground Contact Pressure: 33.6 kPa Rear Tail Swing Radius: 1,790 mm 2. Engine & Power Performance Engine Manufacturer: Yanmar Engine Model: 4TNV98C Inline 4-cylinder water-cooled turbo diesel Displacement: 3.318 L Net Rated Power (ISO9249): 42.4 kW @ 2100 rpm (56.9 HP) Max Torque: 236 N·m @ 1350 rpm Fuel Tank Capacity: 135 L Hydraulic Tank Volume: 86 L Travel Speed: Low 3.4 km/h / High 5.0 km/h Swing Speed: 11.3 rpm Gradeability: 70% (35°) Max Bucket Digging Force (ISO): 55 kN Max Arm Digging Force (ISO): 36 kN 3. Hydraulic System Main Pump: 3 independent variable displacement axial piston pumps Total Max Main Pump Flow: 142 L/min Standard Auxiliary Hydraulic Flow: 71 L/min Main System Relief Pressure: 27.5 MPa Pre-installed bidirectional auxiliary piping for hydraulic breaker, auger & thumb grab attachments 4. Working Range Dimensions (mm) Max Horizontal Digging Reach: 6,320 Max Digging Depth (blade lowered): 4,270 Max Vertical Digging Depth: 3,760 Max Digging Height: 6,780 Max Dumping Height: 5,170 5. Overall Transport Dimensions (mm) Total Transport Length (with standard bucket): 6,080 Total Transport Width: 2,260 Overall Height (cab top): 2,600 Minimum Ground Clearance: 360 mm