High Frequency Reciprocating Rig (HFRR)

The High Frequency Reciprocating Rig (HFRR) characterizes friction or wear under lubricated condition using a ball on disc configuration. This lubricity tester is particularly suited for evaluating low lubricity fluids like diesel and gasoline. ASTM D6079 specifies the use of the HFRR to evaluate lubricity of diesel fuels.

The system consists of a temperature controlled stage that houses the test plate. A reciprocating arm with a ball holder to hold the test ball is pressed against the test plate with a known force. The system reciprocates maintaining the required stroke length, frequency, load, temperature and humidity.

A piezoelectric force transducer senses the frictional force. The unit is computer controlled and uses the WinDucom Data Acquisition System to record the output parameters.

High Frequency Reciprocating Rig (HFRR) diesel lubricity tester

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