Patil Group is the country’s largest supplier of concrete sleepers to the Indian Railways. The company manufactures these pre-stressed concrete (PSC) sleepers across its nine existing and two new automatic production plants across the country with a total installed capacity of 5 million sleepers per annum.
The design for concrete sleepers had been constantly undergoing change in conju-nction with the R&D of Indian Railways to suit the changing requirements. With the adoption of M60 grade concrete, the life of these sleepers increased. With the base width increased, the ballast pressure came down by 10% leading to proportionate savings on ballast and maintenance costs.
Indian Railways has plans to go for higher axle loads in coming years and the new design for concrete sleepers will suit future requirements of the railways. The company also envisages the use of special strand wire with higher UTS by which the overall weight of steel per sleepers will be brought down by 25%.
The sleepers manufactured by the company are suitable for the following:
Normal Broad Gauge: This sleeper has a trapezoidal cross section having a width of 180 mm at the top and 280 mm at the bottom and a height of 230 mm at rail seat.
Points & Crossing: These specialized sleepers are used to hold switches, CMS crossings and lead rails for main line and turnouts. High speed trains can run on these PSC layouts with utmost safety.
Guard Rail: These are used on girder bridges to prevent a derailed train from capsizing.
Switch Expansion Joints: These are PSC sleepers for switch expansion joints (with 120 mm maximum gap) for long welded rails for 52 kg & 60 kg rails using corresponding chairs.
Check Rail on Curves: Check rails are absolutely essential to offer an inner side for sharper curves, which are more than 50 to prevent derailment.
Level Crossings: This is formed at various points where a road crosses a railway track at the same level and sleepers used here are made with 60 kg UIC or 52 kg check rail.
Dual Gauge: The unique pre-stressed concrete dual gauge sleepers have been designed to cater to handle meter and broad gauge trains so that both trains can run on the same track. All the sleepers are manufactured under stress bench system with very strict quality control measures.
In continuation with its long-term strategy to be a one stop provider of all Rail Track and Metro Rail track related components Patil Group has achieved another milestone. We have recently established a Foundry near Kallakal, Hyderabad & Bokaro, Jharkhand for manufacturing of Base plates, SGCI Inserts.
Insert is a metallic part which is kept in the sleeper used to insert the clip that connects Concrete sleeper with Rail track. We manufacture Inserts in our foundry at Kallakal near Hyderabad. Insert production involves steps like preparation of molten metal, Mould formation in Dies by pouring molten metal, De-gating , Shot blasting and final grinding to remove excessive metal formation. The factory has been established with State of art manufacturing facilities and modern techniques like Robotics and Internet of things (IOT) are being implemented.
This unit has recently received approval from QA- RDSO ( Drg. RT 381 Alt9) and started full scale manufacturing. At Kallakal Foundry (KFCPPL) we will very soon also start manufacturing of SGCI insert for the wider base sleeper, which is the latest sleeper product that can enable increased speed of locomotive with high axle capacity. Base plates for Metro Rails are another critical component that we manufacture in this foundry.
We are proud to announce our continued association with Indian Railways and happy to be a part of Make in India philosophy.
Patil Rail Infrastructure Pvt. Ltd.
Web : www.patilgroup.com