Ideally, a lubricant’s viscosity should be sufficient to separate two frictional surfaces and prevent wear. However, due to the higher temperatures (or temperature fluctuations) and increased loads of modern machineries, viscosity alone cannot get the job done. Additives that can increase the ‘load-carrying capability’ of a lubricant, preventing gradual wear or catastrophic welding of surfaces, are therefore introduced to most lubricants.
Anti-Wear (AW) Additives
Anti-wear (AW) additives, as the name suggests, are compounds designed to minimize wear on surfaces in contact. These additives, usually based on fats, zinc and phosphates form a protective layer, reducing friction and minimizing the impact of regular wear and tear. Such additives are common ingredients in hydraulic oils.
Extreme Pressure Additives
Extreme Pressure (EP) additives, on the other hand, are designed to withstand and combat the intense pressure and loads experienced by certain machinery components. These additives, usually based on Sulfur and/or Chlorine, form a resilient film under extreme conditions, preventing wear and damage. EP additives are commonly employed in gear systems, metalworking operations, and other heavy-duty industrial applications where extreme pressures are encountered.
Caution in Selecting Lubricants with Extreme Pressure Additives
While EP additives provide crucial protection in demanding environments, caution is warranted when selecting lubricants. In certain applications, such as those involving softer metals or yellow metals like brass and bronze, the use of lubricants with extreme pressure additives can lead to accelerated wear and potential damage. Therefore, it’s imperative to choose lubricants tailored to the specific needs and materials of the machinery in question, ensuring compatibility and optimal performance.
Consult with Lubrication Experts
When it comes to navigating the complexities of lubrication, especially with AW and EP additives, it’s wise to seek advice from lubrication experts. These specialists bring valuable insights into your machinery’s unique needs, helping you avoid common issues and get the most out of advanced lubrication practices.
Adding Anti-Wear and Extreme Pressure additives is a game-changer for industries relying on heavy machinery. Beyond just protection, these additives are the key to boosting performance and extending machinery life. To ensure you get the best results, don’t forget to consult with lubrication experts. Their expertise provides personalized recommendations, ensuring your machinery operates at its best for longer.
