Koehler – Tribology – High Frequency Reciprocating Rig (HFRR)
For evaluation of the lubricity of diesel fuels using a high-frequency reciprocating rig (HFRR). A 2-mL test specimen of fuel is placed in the test reservoir and maintained at 25 or 60°C. When the temperature has stabilized, a vibrator arm holding a non-rotating steel ball and loaded with a 200-g mass is lowered until it contacts a test disk completely submerged in the fuel. The ball is caused to rub against the disk with a 1-mm stroke at a frequency of 50 Hz for 75 min. The ball is removed from the vibrator arm and cleaned. The dimensions of the major and minor axes of the wear scar are measured under magnification and recorded.
Available Models
Technical Specifications
| Conforms to the specifications of | ASTM D6079, D7688; ISO 12156; IP 450; EN 590; CEC F-06-A |
|---|---|
| Contact Geometry | Ball on Plate (Point Contact) |
| Stroke | 20 microns to 2 mm |
| Frequency | 10 Hz to 200 Hz |
| Test Load | 1 N to 10 N through dead weights |
| Frictional Force | 0 to 10 N |
| Temperature Range | Ambient to 150 °C |
| Test Disc Size | 10 mm dia. x 3 mm thick |
| Test Ball Size | 6 mm diameter |
| Power Supply | 230V 50Hz 30A |
- Model No: K93460
- 115V, 60Hz
Technical Specifications
| Conforms to the specifications of | ASTM D6079, D7688; ISO 12156; IP 450; EN 590; CEC F-06-A |
|---|---|
| Contact Geometry | Ball on Plate (Point Contact) |
| Stroke | 20 microns to 2 mm |
| Frequency | 10 Hz to 200 Hz |
| Test Load | 1 N to 10 N through dead weights |
| Frictional Force | 0 to 10 N |
| Temperature Range | Ambient to 150 °C |
| Test Disc Size | 10 mm dia. x 3 mm thick |
| Test Ball Size | 6 mm diameter |
| Power Supply | 230V 50Hz 30A |
- Model No: K93469
- 230V, 50Hz, 30A
Key Features
High Frequency Reciprocating Rig (HFRR)
- Variable Frequency from 10 Hz to 200 Hz via Software
- Wear scar measurement through digital microscope and software
- Real time data acquisition of frictional force, co-efficient of friction and temperature
- User friendly software for operating test rig with difference operating sequences
- Programmed test sequence for automated testing
- PC based digital and data acquisition
- Fully computer controlled test sequence
- Easy On-Site Calibration
- Proven repeatability and reproducibility
- Rigidly built dedicated table top rig
Key Industries
- Aerospace
- Automotive
- Chemical
- Machinery and Manufacturing
- Mining and Minerals
- Oil and Gas
Brand
Providing quality testing instrumentation and technical support services for research and testing laboratories has been our specialty since 1925. Meeting your testing needs is the primary focus of our business, which is why Koehler Instrument Company is a leading producer and supplier of petroleum, synfuels and petrochemical instrumentation worldwide. At Koehler, we pride ourselves in innovation. In a time of continuous technological advancement and transition we are constantly implementing new and improved ways to surpass the needs of an ever-evolving industry. Koehler products are backed by our staff of technically knowledgeable, trained specialists who are experienced in both petroleum products testing and instrument service, which is carried out either on site or at a Koehler service center.
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