RMF Systems general

RMF Filters

Main flow filters - even when applied as a fine filter - are incapable of removing silt particles of less than 2 micron from the oil. Chemical contamination from silt and sludge forming shortens the useful life from the oil. The result is an increase in component wear, maintenance costs and machine down time. The radial micro filter units from RMF Systems, with a filter fineness of 0.5 micron, remove even the smallest particles and water from the oil. The direct result is longer oil usage life with less malfunctions and longer service intervals.

System contamination
In the hydraulic market it is an accepted fact that contamination causes 80% of all mechanical failures. This contamination results from the presence of solid particles such as metal, sand and rubber. Mainstream filters are incapable of removing the smallest particles, smaller than 2 micron (better known as silt). Fluctuations in the supply and the resulting changing conditions mean that these filters cannot carry out fine filtration; most of the silt remains in the system and affects the chemical composition of the oil.
Changes in temperature cause water vapour to condense, resulting in unwanted water in the oil and the presence of this free water helps to accelerate the deterioration of the oil. Removing silt and preventing the formation of free water can combat these problems.

Micro filtration and air conditioning
At the heart of the RMF Off-line and By-pass filter units is the unique micro filter element. This filter works according to the radial through-flow principle. As it has a filter fineness of 0.5 micron, it is able to remove the smallest of contamination particles (silt) from the oil.
The filter material is composed primarily of cellulose, which is applied by a special wrapping method. This material is capable of retaining solid particles and absorbing water. This helps to prevent the chemical deterioration of the oil and the formation of various acids and sludge.

Hydraulic cylinder extension for example, can draw air, including contamination particles and water vapour into the oil reservoir. The water vapour condenses due to temperature changes and causes not only oxidation of the oil, but can also lead to serious mechanical wear in the system.
Standard air filters remove a certain amount of solid particle contamination from the air but allow water vapour to pass through.The special RMF 'Air conditioners' ensure that incoming air is first dried and then filtered

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