Comparison of job shop production scheduling by using the non-delay method and the Heijunka method at PT XYZ

摘要

The problem that often occurs in this company is the accumulation of orders at one time with a large quantity of products and human resources that are still relatively low can be one of the causes of delays in completing orders for customers.We using Non Delay Method and the Heijunka Method.Where,the Non Delay method is a method that does not let the machine idle if an operation can be started.While the Heijunka method is more concerned with equity in its production.In this study,scheduling using the Non Delay Method is better than using the Heijunka Method or using the existing scheduling method used by the company,because it can produce a faster makespan value.With this Non Delay method,to produce 3 Job 5 machines produce makespan of 3772.01 minutes smaller than using the Heijunka Method which results in makespan 3820 minutes.While the results of existing scheduling makespan only produce 3880.35 minutes.