SUNConferences, 29th Annual Conference of SAIIE

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ROOT CAUSE ANALYSIS FOR REDUCTION OF WASTE ON RUBBER CABLES
Mendon Dewa

Last modified: 2018-10-09

Abstract


In view to meet rising demand of infrastructure needs, rubber electrical cable manufacturing plants should be equipped with latest state of the art modern machinery to offer quality products that are specifically designed to meet electrical and physical specifications and standards. The case-in-point plant experienced a sudden significant increase in excess length scrap and this scenario necessitated an investigation to ascertain the root cause of waste on rubber cables. The methodology that was employed embraced determination of the cable process and material flow and then development of a cause and effect diagram. The cause and effect diagram highlighted that there were numerous causes for the waste on rubber cables, with human error as the greatest source of waste. Additionally, concerning measurement, improper calibration resulted in huge variance in length from machine to machine. It was recommended that machine length counters should be calibrated to a single reference machine and use of two main length counters. An internal printing line was also created to eliminate the rewind line phase. It was also imperative to educate the operators about the correct standard operating procedures and methods to be followed.

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