Analisa Pengendalian Kualitas Cacat Ukuran Kemasan Karung Bag pada PT. Polytama Propindo dengan Menggunakan Metode Seven Tools

Abstract

Abstract

Every production process made by a company both in the field of service and manufacture surely wants to reach qualified production results, so that the products will be able to compete wiuth the similar ones or in the other words the prpoduct is marketable. As a result, the company’s target could be fulfilled optimally and well accepted by the costumers.

The products made by PT. Polytama Propindo is in the package of bag in transparent, have not complete produced the qualified ones. Therefore, PT. Polytama Propindo  needs a good method to analyse amnd solve the problems faced by it in order to reach the company’s goal.

Applying three tools of quality control, i.e. hystogram, result – cause diagram, X and R-control map, the researchewr tries to solve the problem in terms of quality of package in PT. Polytama Propindo He first analysed some production data samples and calculate the number of invalid product in every sampling size, so then he discovers how far the company has produced the products well. The most important thing is to analyse the damage happened through products and search for the causes.

The results show that the damage in terms of packaging are in the form of under size or upper size process. The causes of invalid products are in terms of human error, environment, and machines are also influence the quality of packaging.

By having 30 samples under control. that is, 99.65 upper limit control and 40.15 under limit control. Meanwhile, the company targets 20 sheet one day. The company have not maximal target, but the company has to immediatly revise since the invalidity has almost reach the target.

Keywords: histogram, cause and effect charts and control charts X and R