Improving grease dispensing accuracy

Does your current grease dispensing mechanism give you accurate deposits without extra maintenance?  Can you apply consistent amounts of lubricant without spending time and money on downtime, rework, and cleanup?  Just a slight change in the flash of a dispensing unit, such as a tip or a syringe, can make grease output differ.  There are 3 methods to increasing grease dispensing accuracy over repeated applications.

Only use high quality dispenser tips 

Selection of a high quality dispenser tip that doesn’t have seams, flash, burrs, contaminants, or a compromised seal is critical to the accuracy of grease deposits.
High quality tips should have package labels with lot numbers for process control and traceability.  Dispenser tip gauges, lengths, and colors should remain consistent from lot-to-lot and style-to-style.

Begin with the lowest pressure setting and select the right type of dispenser tip

The pressure setting on a grease dispensing mechanism will impact its flow and accuracy.  Start with a low setting, such as 10 PSI, and adjust as needed for desired results.  If the outcome differs under the same pressure, a new tip may need to be selected.  There are general purpose tips but that may not be what your application requires.  Tapered tips, and tips with wider openings, different length tips and gauges, will change flow and size.  If you need an exact size deposit, start with a tip that has a diameter half that size for an initial test.

Use Confirmation Methods to measure accuracy

Quantifying accuracy of grease deposits can be critical in part production or production processes.  There are grease flow sensors that can detect the motion of grease passing through it. When located close enough to the dispense point (nozzle), this type of sensor provides a very high degree of confidence that grease did get to the part.   Flow Meters can also be used.  Flow meters are often used in a gear-type device that rotates when grease is forced through the area between the gears. This rotation generates a chain of pulses back to the meter. The rate of the pulses indicate flow velocity. This device should also be placed near the dispenser tip.