EP oils and AW oils are lubricants that contain additives to improve performance under certain conditions. The main difference between EP oils and AW oils is the specific additives they contain and their intended use.
EP oil and AW oil are two different types of lubricants, and their main differences lie in their composition and uses.
EP oil, extreme pressure oil, is an oil that can provide good lubrication under high pressure and temperature. It usually contains one or more metal salts, such as sulfur, phosphorus, chlorine, etc., which form an extreme pressure film on the friction surface to enhance the lubrication effect. In addition, EP oil usually has good adhesion and antioxidant properties, and can maintain lubrication effect under high load and high temperature conditions.
EP oils or extreme pressure oils are formulated with additives to provide enhanced lubrication and protection under high pressure and heavy load conditions. These additives often include sulfur, phosphorus or chlorine compounds. EP oils are commonly used in industrial applications such as gears, bearings and sliding components where extreme pressures and heavy loads are encountered. The additives in EP oil form a protective film on the metal surface, reducing friction and preventing metal-to-metal contact under extreme pressure.
AW oil, anti-wear oil, is a lubricant that can reduce friction and wear. It mainly reduces wear by forming a protective film on the friction surface to reduce direct contact between metals. The main component of AW oil is high molecular polymers, such as polyester, polyurethane, etc. These high molecular polymers can form an elastic film with low shear strength on the friction surface to reduce wear on the metal surface.
AW oil or anti-wear oil contains additives specifically designed to minimize wear under normal operating conditions. These additives often include zinc dialkyldithiophosphate (ZDDP) or other friction reducers. AW oils are commonly used in a variety of applications including automotive engines, hydraulic systems and industrial machinery. The additives in AW oils form a protective layer on metal surfaces, reducing friction and wear during normal operation.
Therefore, the main difference between EP oil and AW oil is their mechanism of action and uses. EP oil is mainly used for lubrication under high load and high temperature conditions, such as heavy machinery, forging equipment, etc.; while AW oil is mainly used to reduce friction and wear, such as hydraulic systems, bearings and other equipment that require long-term stable operation.
In summary, EP oils are formulated for extreme pressure and heavy-duty applications, while AW oils are designed for general wear protection under normal operating conditions. Specific additives in these oils provide targeted benefits to meet the needs of different applications.
In general, the choice of which lubricant to use needs to be determined based on the working environment and working conditions of the equipment. If the equipment that needs lubrication is under high load and high temperature conditions, then EP oil is more suitable; if the equipment that needs lubrication needs to operate stably for a long time and reduce friction and wear, then AW oil is more suitable.