Links to the present site are maintained either through the New Yard, adjacent to the MS&LR line near Parkgate and Aldwarke station, or directly into the 11" mill from the Midland line at Aldwarke Junction. The works has had an internal rail system from its early days and this now takes traffic from the New Yard throughout the site. In the late 1950s the system was dieselised with 10 four-coupled locomotives built by Brush Engineering of Loughborough. In the mid-1960s these were joined by six Brush six-coupled locomotives. The network has been cut back over the years but there is enough work to warrant its retention. The Parkgate fleet was joined by some locomotives from the Rotherham Works of Steel, Peech and Tozer when the latter was closed, including examples built by the Yorkshire Engine Company of Sheffield.