Turnout Systems  >   >  Crossings  >  Diamond Crossings

Diamond Crossings

VAE VKN is the first and foremost company in India which has developed and is actively supplying complete diamond crossings (with double slip, single slip and without slip) as a single-source supplier of the key components, CMS Crossings and Switches.

Our clients benefit from assurance of complete and accurate fitment of the components inclusive of fittings and fastenings which can only be ensured in case of providing the complete turnout from a single source.

Further the logistics in the hand of the customer is being streamlined as through the complete supply from VAE VKN there is no requirement of seperate control that all components required reach the installation site on time which is always a critical part in case of split purchase of crossings, switches and fittings / fastenings.

 

Diamond Crossing with Cast Manganese Crossings (Frogs)

The diamond crossing consists of 4 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, are either connecting rails are connected through fishplated joints closure rails are flash-butt welded to the blocks using VAE's wordwide patented and proven procedure (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.

Advantages

  • Can be thermit welded into the track (no fishplated joints, low noise and vibration emissions)
  • Requires low maintenance because boltless design
  • Excellent wear resistance due to work hardening process of AMS during operation -> long service life
  • Optimized wheel transfer

 

  • Guaranteed exchangeability
  • Explosive Depth Hardening EDH is possible
  • Built-up and repair welding without preheating possible in the track
  • Suitable for all types of rail fastenings
  • Reduced maintenance, particularly in case of high axle loads because the running surface can be pre-strengthened

Technical characteristics

Material grades:
Crossings		High-manganese steel as per UIC 866
Closure rails

Optionally, S900 as per UIC 860 and 260 as per CEN
or
S900A head-hardened (HSH)

Special grades on request