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| SDD1 locomotive is AC-DC diesel locomotive specifically designed for mainline passenger and freight transportation on narrow gauge railway in Africa. The locomotive adopts double driver's cabs and inside coridor structure, equipped with a high-speed electric injection diesel engine, with service power of 1620kW and maximum operating speed of 100km/h. It is suitable for operation in high ambient temperature, heavy sand environment and poor track condition. | 
| Main Technical Parameters | 
| Application | Main line passenger & freight transportation | Track Gauge | 1065mm | 
| Axle Arrangement | C0-C0 | Wheel Diameter | 914mm | 
| Axle Load | 16.5t | Locomotive Service Weight | 99t | 
| Max. Service Output of Diesel Engine | 1620kW | Min. Negotiable Curve Radius | 100m | 
| Max. Running Speed | 100km/h | Continuous Speed | 15.4km/h | 
| Max. Starting Tractive Effort | 317kN | Continuous Tractive Effort | 245kN | 
| Fuel Capacity | 4500L | Oil Capacity | 360kg | 
| Sand Capacity | 600kg | Overall Dimensions (L×W×H) | 18008mm×2850mm×3950mm |