Impact of Vacuum-Drying on Efficiency of Hardwood Products

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Impact of Vacuum-Drying on Efficiency of Hardwood Products ( impact-vacuum-drying-efficiency-hardwood-products )

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6.2 PLANT D Plant D is a family business that produces mostly unfinished and prefinished 2.25” and 3.25” red and white oak flooring. The production line of study is 3.25”’’ red oak flooring. Customer orders of 3.25” un-finished red oak flooring are received primarily via fax and email every two weeks. Lumber orders are placed either by email (pdf) or fax. Customer demand of red oak 3.25” is 50 MSF on average per day (50% goes to the unfinished line and 50% to the finished line). Plant D has 20 customers; however the number can vary with seasonality of demand. A projection of demand in a year was not able to be provided by the company, so the actual value of demand for a period of a month was used as given by the project manager. Raw material is purchased green. Lumber arrives on 11 trucks per day with 7500 bf each. Shipment is done by 12 trucks per week approximately with 20 pallets each in which 20% corresponds to prefinished product and the 80 % to unfinished. The company works 22 days per month. Work shifts are 9 hours per day, with 30 minutes for lunch and 2 breaks of 10 minutes each. The company does not use any optimized program, their production is performed manually and it is scheduled daily. Data from one flooring line production was collected to develop the VSM as mentioned in section 3.3.3, and is presented in Table 27. 100

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