Digital Fatigue Testing Machine
Application & Operation:
This machine is used to test the fatigue strength of materials and to draw S-N diagram by research institutes, laboratories, materials and various industries. 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 It its ends and loaded such that it cxperiences a uniform bending moment. The specimen is rotated at 4200 rpm by a motor. A complete cycle of reversed stresses in all fibres 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 is recorded by a Digital counter. An interlocking system puts off the motor at specimen failure. Machine meets requirements of IS: 5075-1969.
Features:
- Light weight, compact size, simple Designed.
- Table model, no need of foundation.
- Simple lever system of changing bending moment load.
- Accurately calibrated as per IS:5075.(Machine with maximum bending moment upto 400 kgcm can be offered on request)
Technical Specfication:
| Maximum bending moment | 200 kg cm |
| Bending moment adjustable | 25 - 200 kg cm |
| Ranges | Range - I) 25 - 125 kg cm Range - II) 125 - 200 Kg cm |
| Gripping dia of specimen | 12 mm |
| Testing dia of specimen | 8 mm |
| Rotating speed | 4200 rpm |
| Accuracy of applied bending moment | ±1% |
| Digital counter | 8 Digits |
| Power required | 0.5 HP |
| Power supply | 3 Phase, 415 Volts, 50 Hz, A.C. |
| Overall size (approx) | 1000 (L) x 500 (W) x 600 (H) mm |
| Weight (approx) | 120 kg |
