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Features : This machine is used to test the fatigue strength of materials. 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 completer 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.
Specification
| Maximum Bending moment | kg cm | 200 |
|---|---|---|
| Bending moment adjustable | kg cm | 25 - 200 |
| Ranges | I-kg cm | 25 - 125 |
| II-kg cm | 125-200 | |
| Gripping dia of specimen | mm | -12 |
| Testing dia of specimen | mm | 8 |
| Rotating speed | rpm | 4200 |
| Accuracy of applied bending moment | ||
| Digital counter No. of digits | 8 | |
| Power required | HP | 0.5 |
| Main supply | 3ph, 440, V50 Hz, A.C | |
| Overall Size (approx) | mm | 1000 L. X. |
| Weight (approx) | kg | 120 |