Reference no: EM132677190
Company A produces bikes. These bikes are built from four major components sets, each of which is built on independent, and parallel, production lines before reaching final assembly where all four of the components are assembled to create the bike.
The first line produces the bike motor which requires three activities: molding, welding, and insertion. The average timings of these activities are 3, 2 and 3 minutes, respectively. The bike's frame is the second component. It takes 5 minutes to bend the bars, and 2 minutes to weld bars together for the frame. The third line makes the saddle where it takes 6 minutes to cut the material and then mount it on sheet metal. The fourth and last production area, C&S, creates a set of plastic parts that are contribute to the cosmetics and safety of the bike. The activities in the C&S area require a total of 9 minutes to complete the parts for each bike.
In final assembly, the four component sets (motor, frame, saddle, and C&S) are joined to create the bike. In addition, the hardware including lights, wheels, driveshaft, brakes, etc., are all added during final. This entire activity requires 30 minutes per bike in total.
Suppose the average actual flow time to produce one bike from start to finish in the above process is 120 minutes. What is the flow time efficiency?