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Importance of the Dropping Point of Lubricating Greases
The most important function of lubricating greases is the reduction of friction and wear in internal combustion engines, vehicle and industrial gearboxes, compressors, turbines or hydraulic systems. The dropping point of lubricants is an important test method for lubricating greases in order to assess the quality of these materials.
Dropping point ranges from 80 °C to 300 °C can be adjusted depending on the type of the lubricant (base oil and additive) and the thickener, the respective proportions and the interactions between the lubricant and thickener.
The dropping point establishes the maximum usable temperature of the grease, which is typically set from 50 °C to 100 °C below the experimentally determined dropping point. Furthermore, the dropping point can be used to identify whether the correct grease was supplied or is in use and to determine whether used grease can be still used for the intended purpose.
The DP Excellence instruments allow fully automated dropping point detection of lubricant grease exactly according to the requirements of the IP396 standard, which is based on a dual heating ramp procedure and automatic dropping point event detection.
Measurement according to International Standards
The DP Excellence instruments allow fully automated dropping point detection of lubricant grease exactly according to the requirements of the IP396 standard, which is based on a dual heating ramp procedure and automatic dropping point event detection.
With this application note you will learn to determine the dropping point of lubricating grease according to the IP396 standard using the METTLER TOLEDO Dropping Point Excellence.
