In the mid-eighties, FGC initiated a modernization plan for freight rolling stock, with the renewal of locomotives and wagons. CAF was commissioned to build eighty-six two-axle dump wagons consisting of a frame and a stainless steel body, series 63,000, initially intended for the transport of potassium chloride between Sallent and Súria to the Port of Barcelona facilities for maritime export, but upon the arrival of the series 62.000 bogie hopper cars, the small tubs were exclusively assigned to the transport of common salt between the Súria mines and the Solvay/Solvyn factory in Martorell.
The trains operated in two formations of forty cars (called cycles), with the other six remaining in reserve or under maintenance. When the Solvyn electrolysis plant closed, the entire series was scrapped, leaving only number 63,039, which is now exhibited at the FGC Narrow Gauge Space at Martorell Central.
Technical data sheet
| Any construction | 1986 |
| Manufacturer | CAF |
| Series | 63.001-63.086 |
| Company | Fighting Game Community |
| Track width (mm) | 1000 |
| Axis layout | 2 Axes |
| Length (mm) | 8.200 |
| Height (mm) | 2.200 |
| Width (mm) | 2.700 |
| Weight (kg) | 7.200 |
Client: FGC
Types of Restoration: Cosmetic
Any: 2023
