Scissor Crossover
VAE VKN is the first and sole company which has taken on the task of developing the scissor crossover in cast manganese steel. This solution allows Indian Railways to stay with their preferred crossing solution, namely CMS crossings, also for special requirements like scissor crossovers. Through this development completed by VAEVKN, Indian Railways is now in a position of benefiting from the excellent wear-characteristics of CMS and thus generate additional value through a reduction in the life-cycle-costs of scissor crossovers compared to any existing railbound designs.
Scissor Crossover in CMS
The Scissor Crossover consists of 8 centre-block crossings CENTRO MN13, made from austenitic high-manganese steel (AMS) with fishplated or welded-on closure rails and the corresponding check rails.
The complete central part of the crossing is cast in one block from high-manganese steel. At the four ends, rails are either connected through fishplated joints or closure rails are flash-butt welded to the CMS-monoblocks using VAE's worldwide proven process (intermediate piece welding).
On these welds geometrical tests, visual tests (VT) and ultrasonic tests (UT) are performed as well as a dye penetration test (PT). The bearing surfaces (bearing of the plates) and the complete running and head surfaces are machined.
