Application & Operation
This machine is used to test the fatigue strength of materials and to draw S-N diagram ideal equipment for Technical Institutions, Research Institutes, Laboratories etc. 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 mechanical counter. An interlocking system puts off the motor at specimen failure. Machine meets requirements of International / Indian Standards
Features
Machine with maximum bending moment upto 400 kg cm can be offered on request.
Technical Specifications | ||
Maximum bending moment | kg cm | 200 |
Bending moment adjustable. | kg cm | 30 – 200 |
Ranges. | I-kg cm | 30 – l 00 |
II-kg cm | 100 – 200 | |
Gripping dia of specimen | mm | 12 |
Testing dia of specimen | mm | 8 |
Rotating speed | rpm | 4200 |
Accuracy of applied bending moment. | ± 1% | |
Mechanical counter No. of digits | 8 | |
Power required | HP | 0.5 |
Main supply | A.C.3 ph. | 440 V, 50 Hz |
Overall size (approx) | mm | 1000L x 500W x 600H |
Weight (approx) | kg | 120 |