Vibronics Pvt. Ltd. Offers Rail Tester for Fatigue Cracks. Vibronics Pvt. Ltd. Manufactures and exports Ultrasonic Cleaning Machine, Ultrasonic Cleaning Solution, Ultrasonic Cleaning Equipment, Flaw Detectors, Ultrasonic Processors, and Ultrasonic Cleaning Systems etc. The Rail Tester for Fatigue Cracks is used for testing of rails during manufacture and after for fatigue cracks. The unit employs five double probes, two of 70° and 37° forward backward type and one special 70° double probe. Provision is made for a water tank to enable a constant water supply for probe coupling. The whole unit is made to RDSO`S specifications and has its approval.