Grease tolerates wide temperature range
A
Kluber Lubrication GB product story
Edited by the Engineeringtalk editorial team
Mar 9, 2007
Maintenance engineers no longer have to bend over to brush on the grease: they simply use a spray gun instead.
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 of rail switches and with a service temperature range of -40C to 80C 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 60C, with a load of 450N, the surfaces were consistently covered with sufficient lubricating film with excellent corrosion protection.
Throughout the temperature range 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 25C) to 400N (at -11C).
The test failed due to excessive friction forces at -25C.
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.
"The advantages of high-performance points lubricants are obvious, longer maintenance intervals mean cost reductions" SNCF lubrication engineers explain.
Besides excellent corrosion protection and biodegradability, convenience of application is another important argument, which is why Kluberrail AL 32-2000 was designed as a sprayable lubricant.
Maintenance engineers no longer have to bend over to brush on the grease: they simply use a spray gun instead.
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Tel +44 1422 319146
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