As with anything with moving parts, from our knee and elbow joints to bearings in wheel assemblies, lubrication helps equipment operate smoothly and last longer. The performance of industrial machinery, such as compressors, depends largely on the reliability of its moving parts. A critical factor in achieving a highly reliable and long lasting compressor is proper lubrication.
Today’s newer compressors use synthetic lubricants, such as diesters, polyglycols, polyalphaolefins, polyol esters and silicon based fluids to run efficiently, stay cool and extend product life. These newer lubricants are capable of handling wide temperature ranges and high flash points. Whatever lubricant you choose for your compressors should be well matched with the application and your airend’s moving parts and compressor’s seals.
Lubrication keeps compressors moving
Fluid acts as a lubricant for the compressor’s meshing rotors, roller and plain bearings, as well as a sealant and coolant. Rotary screw air compressors use a fixed volume of air, that when compressed, increases in temperature, along with the increased pressure of the gas. This increase in temperature and exposure to compressed gas creates extreme demands on the lubricant. There are four key attributes that distinguish a quality lubricant from a low-grade lubricant and can make a significant difference in the performance and longevity of your compressors.
Oxidation stability extends compressor lifespan - Lubricant is designed to extend the life of and maintain optimum performance of compressors, and a high quality non-food grade rotary lubricant should last 8,000 to 16,000 hours at normal operating conditions.
Protection against wear - A high-grade lubricant will protect a compressor’s components, and in particular, a compressor’s rotors and bearings.
Corrosion protection – A quality lubricant will ensure the internal airend components and lubrication system is protected from corrosion.
Performance with air and water - The way a superior lubricant performs in the presence of air and water will extend a compressor’s lifecycle.