SGR Railway Sleeper Identification

The XII design sleeper is the most common and is used in straight line tracking. When a turn-out has to be made along two lines, special sleepers are installed which vary in length. Also on bridges, the XIII design is used when the line is on a bridge

The initial production started with the XII design sleeper  which is used when  the line is moving on a straight line with minimal curves. This design is by far the most common and the dimensions are fixed, same for all sleepers of this design.

The XII Labeling system  in which the final value changes. The mould number is the first 2 digits

The XII Labeling system in which the final value changes. The mould number is the first 2 digits

On the other end of the XII design sleeper, the design number is added together with the 15 for 2015

On the other end of the XII design sleeper, the design number is added together with the 15 for 2015

At some points when 2 parallel lines have to be joined, the junction is called a turn-out. This enables the train to smoothly change lines. The sleepers installed at this point will vary in length depending on the length of the turn-out. In this design, the length of the sleepers will not be the same.

E2015 an identification sign on the Turn-out sleeper.

E2015 an identification sign on the Turn-out sleeper.

The XIII design is used when a railway line has to be installed in a beam of a bridge. This design's nomenclature will have a proceeding Q (XIIIQ) which stands for Qiao, a Chinese word for bridge.

The mould number from which this sleeper was casted from

The mould number from which this sleeper was casted from

A set of XIII stacked ready for the curing process.

A set of XIII stacked ready for the curing process.

All sleepers will bear the mould number on one top-end of the sleeper and a serial number on the other end.