High Frequency Reciprocating Rig (HFRR)
ASTM D6079; ISO 12156-2018
The HFRR is a microprocessor controlled reciprocating friction and wear test system which provides a fast, repeatable assessment of the performance of fuels and lubricants. The system comprises a mechanical unit, control unit and optional PC software.
Fully conform to latest revision ISO 12156:2019 ASTM D6079
Fully automated test sequence
Can be automatically controlled via PC or directly controlled from the instrument
Temperature range up to 150°C. (extended to 400°C by HFR High Temperature Option)
Separate Gasoline kit available that converts the unit to test gasoline sample and determine lubricity
Standard test for diesel fuel lubricity
Wear scar assessment with the standard specimens requires only one measurement
Only a small volume of lubricant is required – tests can be carried out on field collected or experimental fluids; film formation by boundary additives can be observed by electrical contact potential (ECR) changes
Fast, repeatable friction and wear measurement
Independently proven repeatability and reproducibility
Fully automated microprocessor controlled test sequence
Easy to calibrate
Small, compact bench top system
Available with mini-printer option or full computer controlled software
Preloaded with standard diesel fuel lubricity test procedures CEC/ASTM/ISO
Optional automatic recording of humidity and air temperature at start and finish of test using built in digital humidity probe
Calculates WS1.4 where necessary
The High Frequency Reciprocating Rig (HFRR) is a microprocessor-controlled reciprocating friction and wear test system which provides a fast, repeatable assessment of the performance of fuels and lubricants. It is particularly suitable for wear testing relatively poor lubricants such as diesel fuels and for boundary friction measurements of engine oils, greases and other compounds. It has become the industry standard test for diesel fuel lubricity and conforms to ASTM D6079, ASTM D7688, CEC F-06-A, ISO 12156, EN 590, JPI-5S-50 and IP 450
The system comprises a mechanical unit, control unit and optional PC software. The control unit includes a keypad, LCD display and a built in microprocessor so that the complete test cycle can be automatically controlled directly from the unit in standalone mode. Alternatively, the control unit can be connected to a PC to allow data logging, graphical representation of test parameters and results’ file storage.
The control unit is pre-set with ISO/ASTM/CEC profiles for performing standard diesel lubricity tests. The control unit displays the average film and friction of each test. The unit also includes a humidity probe option, the output from which is automatically logged at the beginning and end of the test in accordance with the CEC F-06-A test method. By manually inputting the X and Y wear scar readings, the unit will automatically calculate and display the WS1.4 value. For users who need a simple printed record of the test there is an optional mini printer which attaches to the control unit.
The HFRR is easy to calibrate and follows a fully automated test control sequence, freeing up operator time. Test specimens are a single use ball and disc which conform to all international diesel fuel test standards. Specimens in other materials and to different specifications are also available. Outside of diesel fuel testing, current HFRR applications include gasoline testing, measuring grease behaviour under boundary conditions, the evaluation of marine engine lubricants and investigations into fretting, both dry and in the presence of lubricants.
FREQUENCY : 10 to 200 Hz
STROKE LENGTH : 20 µm to 2.0 mm
LOAD : 0 to 1.0 kg with supplied weights
MAXIMUM FRICTION FORCE : Dependent on amplitude maximum 10.0 N
TEMPERATURE : Ambient to 150°C (optional up to 400°C)
STANDARD UPPER SPECIMEN : 6.0mm diameter ball
STANDARD LOWER SPECIMEN: 10.0mm diameter x 3.0mm thick disc
HEATERS : Two 24VAC, 15W cartridge heaters
FUSES : 3.15 A