Resumo: Este trabalho analisa a cadeia de suprimentos de uma montadora automobilística que opera em regime Completely Knocked Down (CKD). O objetivo é apresentar e discutir as condicionantes operacionais que essa cadeia gera sobre as operações produtivas da montadora em questão. A pesquisa, realizada por meio de um estudo de caso, considerou a cadeia a partir da solicitação de importação das peças até a distribuição dos carros montados. Foi observado que a montadora sofria uma série de condicionantes que afetavam diretamente suas operações logísticas. Esses condicionantes têm origem em três lógicas operacionais: a Lógica do Emitente, a Lógica do Destinatário e a Lógica da Distribuição. Foram identificados os conflitos existentes entre essas lógicas, os quais interferem nas operações e nos limites físicos da montadora. Essa pesquisa introduziu uma nova perspectiva de análise de um sistema CKD.Palavras-chave: Sistema CKD. Cadeia de suprimentos. Lógicas operacionais. Estratégia. Indústria automobilística.Abstract: This work analyzes the supply chain of an automobile assembly plant operating under Completely Knocked Down (CKD). The objective is to present and discuss the operational constraints that this supply chain produces on the production operations of the referred automaker. The research, which was conducted through a case study, considered the chain from the importation request of pieces until the distribution of the assembled cars. A series of constraints that directly affected the assembler's logistics operations were observed. These constraints have their origin in three operational logics: the Emitter's Logic, the Recipient's Logic and the Distribution's Logic. The conflicts between those logics have been identified, which interfere with the operations and physical limits of the assembler. This research introduced a new perspective o CKD system analysis.

This article parts from the importance of sugarcane based energy to the Brazilian economy and, consequently, the important role of the process that involves cutting/loading/transportation (CLT) of cane in the supplies and production cost of sugar, alcohol and its derivates. For this purpose, a study case was carried in a sugarcane factory from São Paulo state, aiming to build a proposal that could reduce the lead time in the CLT process through the analysis of the Manufacturing Critical-Path Time (MCT) of the studied industry. With the data collected in the field visits, the MCT of one tone of sugarcane during its logistic process was done. This tool revealed a long waiting time of the cane waiting to be milled in the patio of the factory. Through the theory of dynamic of the systems it was concluded that this time was high due to the variability of the field as a consequence of an inefficient use of the harvester and the logistic system of dynamic allocation of the transportation resources ahead in the harvest. To make the harvester more efficient, a reduction of 40% of the laying time “awaiting transshipment” was proposed, which would result in a save of R$ 1.172.784,00/year. For this reduction five proposals were identified to be implemented in parallel: integration of the systems of the board computer and the traffic control system; integration of the board computers of the harvester and the transports; implementation of truck filling volume sensors; focus in the management of basis leaders; and, implementation of a multitask worker.