, 44:17 | Cite as

Failure rate analysis of Jaw Crusher: a case study

  • R S SinhaEmail author
  • A K Mukhopadhyay


Failure of crusher components has considerable influence on the productivity of a crushing plant. In order to improve performance and operational reliability, its critical components are needed to be identified to make replacement in time before any catastrophic failure happens. Though traditional maintenance practices exist in crushing plants, a methodical analysis of failure trend is imperative to improve operational reliability of this critical equipment. The present paper deals with failure analysis of rock crusher and its critical components using total time on test (TTT)-plot and other statistical tools. TTT-plot has proven to be a useful tool in reliability analysis.


Total time on test Jaw Crusher time between failures life data analysis 



shape parameter


scale parameter


running time of equipment/components


number of failure


number of observations for time between failures


ratio of Si/Sn


is the TTT at time, ti


is the TTT at nth failure


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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Mining Machinery EngineeringIndian Institute of Technology (Indian School of Mines)DhanbadIndia

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