Twist locks are critical load bearing member of a container handling crane and are manufactured with utmost care incorporating quality checks at every stage of production. Salient features of twist locks are :
1) single piece forged construction from ni-cr-mo alloy steel (standardised for all twist lock applications).
2) quenching & tempering heat treatment for guaranteed physical properties & minimum impact strength of 27 joules -20 deg. Centigrade.
3) various destructive(tensile, impact) & non-destructive testings (ultrasonic & mpi)
4) 100 % proof load tested at double the swl and certified by a competent person under dock workers' regulations act, 1990 of india.
5) 100 % mpi tested after proof load test.
6) normal life in excess of 75, 000 container lifts.
-
