Revisión de modelos de políticas de inventarios para determinar su aplicabilidad en la gestión de inventarios de repuestos en un ingenio azucarero del Valle del Cauca (Período 2013-2018)

Abstract

The spare part inventory policies play a very important role in the management of inventory the sugar mills of Valle del Cauca, since the machinery and spare parts for the realization of their products represent a high cost, this deducts that Overvalue or undervalue the demand for spare parts, companies will obtain losses in their production due to work stoppages or will fall in excesses in their inventories. That is why it is important to have a good inventory policy that allows you to correctly manage all these situations. Therefore, a literature review of the different spare parts inventory policy systems has been carried out in order to then select the inventory policy that most closely matches the type of spare parts demand in a sugar mill in Valle del Cauca. Among the systems found mainly are the continuous (s, Q), (s, S), the periodic systems (R, s), (R, s, S) and others. It is important to clarify that in order to publicize the spare parts inventory policy, an ABC classification was carried out, which allowed to give importance to the spare parts with more weight and from which only the class A items were taken, after this filter was given to know the Coefficient of Variation for each of the items, giving as a pattern an Erratic demand for most of the spare parts, then the forecast was carried out, which were chosen with the lowest ECM that they presented, finally in the 10 items of spare parts class A, the technique of periodic review (R, s) and the technique of continuous revision (s, S) were applied since these were adjusted to the type of demand of these spare, when making a comparison with the CTR (cost relevant total), the spare inventory policy that gave the lowest value in all its class A spare parts, was the continuous review technique (s, S).