Fatigue Test

		Rotating Bending Fatigue Test Applications: This kind of machine is suitable to test the fatigue strength of metals or other materials. It is designed and manufactured fully according to the current standard GB4337-84 “method for rotary bending fatigue tests of metallic materials” and Standard ZBN71006-87 “Technical conditions of pure bending fatigue testers”. The testing machine is usually used to test the bending fatigue limitδ-1 of metals under the action of symmetrical repeatedly alternating bending force. Accordingly the tension-compression fatigue limit δ-1p and torsion fatigue limitτ-1 can be determined by calculation according to experienced formula. The system has simple structure, easy to operate, stable & liable. It is very popular at factories and high school laboratories. Main Technical Specification: Maximum bending moment 6 Kgf m (60 N.m) Test speed 3000 r/min Co-axial of left and right claws 0.02 mm Diameter of specimen 12, 17 mm Max. length of specimen 226 mm Temperature in spindle box ≤ 30°C Counter Capacity 1 x 107 Motor power 0.75 KW, 380V, 50Hz, 3 phases Overall dimensions 1170 x 500 x 1220
		Four points RB machine's concept  shows the basic scheme of a four points RB machine. The main elements are: – motor drive, which gives the rotation; – two main bearings, which create the two supports;– two load bearings, where the load is applied.