(SFT-850)Rotational Fatigue Testing Machine For Metal
Features:
-Designed in compliance withISO 1143
-Loading Method is four-points type up to 400N (single point load)
-Maximum Bending momentum M=20N.m
-Capable of one Million cycles within 3 working hours
-Equipped with digital counter (LCD) with accuracyof 1 RPMand10 Millionrevolutions capacity(Korean)
-Capable of saving revolution numberwhen power turned off(BackupBattery included)
-Equipped with suspending system to compensate grippersand specimen's weight
-Protective cover(transparent) to control and observe testing process
-Easyand safe operation
Application:
Checkingand researching material fracture caused by alternate bendingload(reversible and rotating alternate load) less than ultimatestrengthand almost less than Yield point. Test results have vast usage in equipment design like: car, plane, compressor, pump, turbine and etc., Therefore, recognizingthis phenomenon isso important in designandoperation of rotary equipments.
Description:
Test result can be described in form of Stress-Cycle (S-N) curves in which vertical axis (Stress) and horizontal axis (cycle) have been shown. By using S-N curve It can be understood the number of cycles at failure caused by applied stress.
Loading with maximum bending torque 20 N.m done by dead loadand for apply precise RPM consists of 3-phase AC motor, Driver (with control 0-50Hz) with single phase 220V input& 3-phase output (Korean) with maximum RPM 6000. Also, equipped with cut-off micro switch after specimen fracture.
To display cyclesnumber a digital counter (LCD) with 1 RPM accuracy and capacity 10 Million Revolution has been used and there is a Backup Battery to saveanddisplay cyclesnumberin case ofpower turned off.
Durable and qualitative Ball Bearings have been used contributing to smoothlyand noiselessly operation which can boost the test quality.
To fasten specimen, Machine is equipped with durable Grips specialized to gripping round specimens with various sizes (diameter 3-4-5-6-7-8-10-12-14-16-20)mmandspace between grips is 60±20mm