draw a value stream map
Assignment Information You manage the Spartan Hot Cakes Company. Your product, a pound cake, is very popular. Recently high demand for this product has put your production process under pressure, and it is not performing well. You decide to use Lean Production operations improvement methods. You gathered the following information about the process: - Orders come in from your customers via email weekly. Currently demand is 300 cakes per day. You distribute schedules to the production process daily via paper production schedules. You ship to your customer once per day. - You send orders weekly to your suppliers via email. Your suppliers have a one day lead time. The supplier ships materials (eggs, milk, flour, sugar, vanilla, butter, baking powder, salt) to you Mondays and Wednesdays. - Raw materials from your st.pplier go into your warehouse. To simplify this Kaizen event, you decide to focus on only the eggs and focus on the remaining raw materials in a future Kaizen event. There are two eggs in each cake. The raw materials go from the warehouse refrigerator into the Wet Mixing department, and the eggs are mixed with the milk and vanilla. That mixture goes to the Complete Mixing department where the other ingredients are added and mixed. From there it goes to the Panning department, and then the Baking department. Once the cakes leave the Baking department, they go into the Inspection station. Once inspected, the cakes go to Packaging, and then to Shipping. You have measured the cycle time, change over time and up time of each of the processes, and found: - Wet Mixing: Cycle Time -140 sec; Change Over Time -360 sec; Up Time 99% - Complete Mixing: Cycle Time - 220 sec; Change Over Time - 360 sec.; Up Time - 98% - Panning: Cycle Time -30 sec.; Change Over Time -0 sec.; Up Time 100% - Baking: Cycle Time - 35 min.; Change Over Time - 600 sec.; Up Time 82% - Inspection: Cycle Time -20 sec; Change Over Time -0 sec; Up Time 100% - Packaging: Cycle Time - 10 sec; Change Over Time - 0 sec; Up Time 91% You operate weekdays, one shift of ten hours per day. You measure the WIP between the work stations. There are 3,000 eggs in Raw Material Storage. The count after each station is: the equivalent of 1,800 eggs after Wet Mixing, 540 eggs after Complete Mixing, 400 eggs after Panning, 60 eggs after Baking, 0 eggs after Inspection, and 900 eggs after Packaging. You measure the yield of each work station. The yield measures are: - Wet Mixing: 94% - Complete Mixing: 94% - Panning: 100% - Baking: 88% - Inspection: 93% - Packaging: 100%
