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1. Model Overview The Yanmar VIO55-6B is a 5.5-tonne mini excavator manufactured by Yanmar in Fukuoka, Japan. Features zero tail swing design for safe operation against walls. Yanmar has made diesel engines since 1912. 2. Core Specifications Parameter Value Operating Weight 5,565 kg Bucket Capacity 0.16 m³ Engine Yanmar 4TNV84T-ZMBV diesel Power 33.4 kW (48.4 hp) @ 2,200 rpm Displacement 2.19 L Emission EPA Tier 4 / EU Stage V 3. Performance Parameter Value Travel Speed - High 3.9 km/h Travel Speed - Low 2.0 km/h Swing Speed 10 rpm Bucket Digging Force 33.2-41.9 kN Boom Swing 68° L / 68° R 4. Hydraulic System Parameter Value Pump Flow 45.8 L/min x 2 PTO Aux Flow 45.1 L/min @ 2,200 rpm Operating Pressure 24.5 MPa 5. Dimensions (mm) Parameter Value Length 5,580-6,140 Width 1,970-1,990 Height 2,560 Tail Swing Zero Track Width 400 6. Working Ranges (mm) Parameter Value Max Digging Depth 3,900 Max Reach at Ground 6,060 Max Dumping Height 2,540 7. Capacities Fuel: 66 L. 8. Key Features Zero Tail Swing: Rear radius zero, work flush against walls. SMARTASSIST: Real-time monitoring and maintenance alerts. Yanmar Diesel: Turbocharged direct injection, electronic control. Dual Pattern Valve: Switch between excavator and backhoe patterns. PTO Standard: 45.1 L/min auxiliary flow for attachments. Quick Coupler: Standard for fast attachment changes. ROPS/FOPS Cab: Enclosed with AC option. Swing Boom: 68° left/right for offset digging. 9. Standard Equipment Yanmar engine, SMARTASSIST, PTO circuit, pattern change valve, quick coupler, ROPS/FOPS cab, hydraulic cylinder guards. 10. Options Rubber tracks, steel tracks, enclosed cab with AC, tilting bucket, ripper, auxiliary circuits. 11. Variants VIO55-6A (2019-2022): 3.5m dig depth. VIO55-6B (Current): 3.9m dig depth. VIO55-6EB: Battery electric version. 12. Applications Urban construction, landscaping, indoor demolition, agricultural drainage, utility lines, rental fleet. 13. Regional Compliance North America: EPA Tier 4. Europe: Stage V. Japan: 2014 standards. Made in Japan. Specs vary by region. Contact Yanmar dealer.