Prayagraj: The Wagon Repair Workshop (WRW) at Jhansi under North Central Railway (NCR) has developed an innovative detachable upper-body system for open freight wagons.According to NCR chief public relations officer (CPRO), Dr Shivam Sharma, the innovation allows the upper body of a wagon to be separated from the underframe through a specially designed locking and guiding mechanism. Instead of withdrawing the entire wagon from service for repairs, railway personnel will now be able to remove only the damaged portion and replace it with another ready-to-use unit.The detachable structure includes side walls, end walls and the floor assembly, all of which are secured through six specially designed locking systems, three on each side. Guide posts installed at both ends ensure accurate positioning while reassembling the wagon.At present, freight wagons are manufactured with their bodies permanently welded to the underframe. The innovation is expected to be particularly beneficial in workshops, freight terminals, maintenance depots and accident restoration sites. In the event of an accident, only the damaged upper section will need to be removed, substantially reducing the time required to restore rail traffic.Dr Sharma said the average repair cycle of a freight wagon currently stands at around six days. With the new technology, the repair period could be reduced to nearly three days or even less, leading to faster turnaround times and increased freight capacity.The system is entirely mechanical and has been designed in such a way that it can be manufactured using conventional fabrication techniques.According to railway estimates, around 680 freight wagons across Indian Railways are sent for repairs every day, of which nearly 255 require only body-related maintenance. Since each wagon generates an average revenue of approximately Rs 12,600 per day, reducing repair time could result in enormous financial gains.Officials estimate that the technology could help Indian Railways improve annual earnings by more than Rs 184 crore while also reducing revenue losses linked to wagon detention and service disruptions.
