This machine is light, compact and simple design used to test the fatigue strength of materials and
draw S-N diagram used for research institutes, laboratories, material manufacturer and various industries.
• Table model, no need of foundation.
• This is a rotating beam type machine in which load is applied in reversed bending fashion.
• The standard 8 mm dia specimen is held in special holders at its ends and loaded such that it experiences a uniform bending moment.
The specimen is rotated at 4200 rpm by a motor. A complete cycle of reversed stresses in all fibers of the
specimen is produced during each revolution.
• The bending moment is applied with a lever system and can be easily changed by moving a weight over the lever.
• Total number of revolutions at which the specimen fails are recorded by a Digital counter.
• An interlocking system puts off the motor at specimen failure.
• Machine meets requirements of IS 5075-1969.
| Sr. No. | Description | Unit | Values |
| 1. | Maximum bending moment | Kg cm | 200 |
| 2. | Bending moment adjustable | Kg cm | 25 – 200 |
| 3. | Ranges I II | Kg cm Kg cm | 25 – 125 125 – 200 |
| 4. | Gripping dia of specimen | mm | 12 |
| 5. | Testing dia of specimen | mm | 8 |
| 6. | Rotating speed | rpm | 4200 |
| 7. | Accuracy of applied bending moment | % | ± 1% |
| 8. | Digital counter | No of digits – 8 | |
| 9. | Power required | HP | 0.5 |
| 10. | Main supply | 3 Phase, 440 Volts, 50 Hz, A.C | |
| 11. | Overall size (approx.) | mm | L 1000 x W 500 x H 600 |
| 12. | Weight (approx.) | kg | 120 |
