On the right track with Kluberrail lubricant
Rail switch plate lubrication has now been put on the right track with the latest development of rapidly biodegradable lubricants which can now increase re-lubrication intervals to two or even three times those of previously used black switch plate lubricants according to test results. Kluberrail AL 32-2000 is a fluid grease free of solvents which when applied to the surface forms a thin long-lasting lubricating film on the slide plates and with a service temperature range of -40degC to +80degC it is suitable for most applications worldwide.
Following five years of rigorous testing which included over 3500 cycles per test for over 80 hours with 30 minutes of rain simulation using 27 litres of water at 60degC (to simulate an increased wet environment), with a load of 450N, the surfaces were consistently covered with sufficient lubricating film with excellent corrosion protection. Throughout the temperature range of -35degC to +80degC the friction force remained constant between 150N to 250N.
In comparison to a typical non Kluber switch plate lubricant currently in use, the results under the same test conditions showed a friction force ranging from 100N (at 25degC) to 400N (at -11degC). The test failed due to excessive friction forces at -25degC. In addition to the temperature limitations this material also showed major corrosion issues throughout the tests. Such a failure could prove catastrophic should the extremely regular maintenance intervals of the plates lapse.
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