| Class | Max No. of class | Loco Nos. |
| 1912 - Bogie, straight-sill combination (Tram) (ex PMTT) |
4 | 21 - 24 |
| 1916 - Single-truck, drop-end, open California combination (Tram) | 17 | 1 - 10, 33 - 39 |
| 1916 - Bogie, drop-end-and-centre combination (Tram) | 10 | 11 - 20 |
| 1917 - Bogie, drop-end-and-centre combination (Tram) | 8 | 25 - 32 |