Impact of Vacuum-Drying on Efficiency of Hardwood Products

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schedule production decisions. For example, kiln drying operations are scheduled weekly, while flooring production is scheduled daily. Shipment to customers is made daily by truck. Shipments from suppliers are also made by truck and are made daily. Orders are placed by email and fax. Also, the company can vary their production scheduling depending on availability of material, competitiveness in the market and inventory. Data required to the VSM of this production line was collected as mentioned in section 3.3.3. Data collected from each process in the production line is presented in Table 26. Table 26. Parameters observed and reported by the company for each Workstation in the 3.25” wide Red Oak Prefinished Line Production for Plant C. Process parameters Number of Machines Batch size Process time Number of employees Changeover time Inventory Quality Yield Uptime machine Air Drying Kiln Drying Process Surface Planner Rip Saw Moulder Pre- Finishing 071111 variable 75,000 BF 1,200 BF 1,100 BF 6 weeks 12 days 0.83 sec/BF 1.71 sec/BF 850 BF 850 BF 2.05 1.2 sec/BF sec/BF 1 1 7 2 11 15 not applicable 1.89 MMBF 85% 100% not applicable 180 min 717.8MB F 97.50% 97% 24 hours 5 minutes 143.5 MBF 97.50% 100% 98.90% 5 min 470.6 MBF 97.50% 80% 98.90% 5 min 333.5 MBF 97.50% 63% 98.90% 8 minutes 245.3 MBF 97.50% 98.50% 97.60% 95

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