The four axle Sdgmnss series 434S type pocket car is used for combined shipping of:
The car has a type certificate of operation issued by the General Railways Inspector (currently, the Office for Railway Transport).
| A | B | C | D | |
| S | 43,0 t | 51,0 t | 59,0 t | 66,0 t |
| SS | 43,0 t | 51,0 t | 59,0 t | |
Specification
| Empty car speed [km/h] | 120 |
| Loaded car speed, axle load 20 t/axle [km/h] | 120 |
| Loaded car speed, axle load 22.5 t/axle [km/h] | 100 |
| Tare weight [t] | 21,3 |
| Carrying capacity [t] | 59,0 (SS) 66,0 (S) |
| Loading width [mm] | 2580 (pocket) |
| Loading length [mm] | 16300 |
| Length over buffers [mm] | 18340 |
| Loading space distance from the rail level [mm] | 1170 |
| Bogie type | Y25Ls(s)d1 |
| Brake system | Knorr |