Cold Bolt Hole Expansion (CBX) for Rails

Our associate company, SRP Engineers, is appointed as the authorized sub-distributor for HIRD Rail Development (HRD) for Fatigue Technology (FTI) in India.

The RailTec CBX process was developed for the rail industry by FTI as a preventative system to reduce rail breakages, track-related incidents and derailments. The life of bolt holes is increased significantly by producing a zone of residual compressive stress around them by using the RailTec CBX expansion mandrel and proprietary lubricated split sleeves.

• 1 A proven system in use worldwide for over 40 years and for 30 years by Network Rail.
• 2 Reduces track maintenance costs.
• 3 Extends inspection and maintenance cycles significantly.
• 4 Increases the structural integrity and safety of the line.
• 5 Typically improves the fatigue life of bolt holes.
• 6 Applicable to new production environments.
• 7 Cost-effective alternative to replacing the rail.
• 8 Can be applied to fish plates, wheels, bridges and other structures.