Countershaft transmission with upgraded core components provides high reliability. Large rim-pull in 1st gear and higher speed in 2nd gear provide high efficiency for load and carry applications. Clutch cutoff selection switch ensures stable and safe operation. Torque convertor structure is simple and efficiency is high.
The designed and built axle provides best in class performance in heavy duty applications. Premium operator station with big space and superior visibility. Patented MAC mount provides less noise and increased comfort. Adjustable suspension seat, sliding side window and AC with fresh air circulation provide operator comfort. Single lever shifting is flexible and convenient. Adjustable air flow outlet delivers better defrost performance.






| SEM663D - Weichai Specifications | |
|---|---|
| Rated Payload | 6,000 kg |
| Operating Weight | 19,850 kg |
| Bucket Capacity | 2.9-5.5 m³ |
| Breakout Force | 197 kN |
| Transmission Gears | F4/R4 |
| Torque Converter | Single stage 3 elements |
| Engine Model | Weichai |
| Rated Power | 178 kW |
| Rated Speed | 2,000 r/min |
| Hydraulic Cycle Time | 9.7 s |
| Fuel Tank Capacity | 252 L |
| Tire Size | 23.5-25 |





