Given the standard times associated with six sequential operations, calculate the efficiency of the assembly line: Operation Standard Minutes 1 0.54 2 1.32 3 2.40 4 0.88 5 1.35 6 0.97
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Given the standard times associated with six sequential operations, calculate the efficiency of the assembly line:
|
Operation |
Standard Minutes |
|
1 |
0.54 |
|
2 |
1.32 |
|
3 |
2.40 |
|
4 |
0.88 |
|
5 |
1.35 |
|
6 |
0.97 |
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- A paced assembly line has been devised to manufacture calculators, as the following data show: Station Work ElementAssigned Work ElementTime (min) S1 S2 S3 S4 S5 S6 A D,E C B,F,G H,I,J K 2.7 0.6, 0.9 3.0 0.7, 0.7, 0.9 0.7, 0.3, 1.2 2.4 a. What is the maximum hourly output rate from this line? (Hint: The line can go only as fast as its slowest workstation.)b. What cycle time corresponds to this maximum output rate?c. If a worker is at each station and the line operates at this maximum output rate, how much idle time is lost during each 10-hour shift?d. What is the line’s efficiency?A paced assembly line has been devised to manufacture calculators, as the following data show: LOADING... Station Work Element Assigned Work Element Time (min) S1 A 4.0 S2 D, E 0.9, 1.5 S3 C 5.0 S4 B, F, G 1.1, 1.0, 1.3 S5 H, I, J 1.1, 0.5, 1.8 S6 K 4.0 a. What is the maximum hourly output rate from this line? (Hint: The line can only go as fast as its slowest workstation.) The maximum hourly output rate is nothing calculators per hour. (Enter your response as an integer.) B. What cycle time corresponds to this maximum output rate? C. If a worker is at each station and the line operates at this maximum output rate, how much idle time is lost during each? 10-hour shift? D. What is the line's efficiency?A production process at Kenneth Day Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with, the sawing and sanding, which are independent sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). A) is the bottleneck. b) The bottleneck time isminutes per unit (round your response to two decimal places). c) The throughput time of the overall system is enter your response here minutes (round your response to two decimal places). D) If the firm operates 8 hours per day, 20 days per month, the monthly capacity of the manufacturing process isunits (enter your response as a whole number).
- The process design team at a manufacturer has broken an assembly process into eight basic steps, each with a required time and predecessor as shown in the table. They work an 8-hour day and want to produce at a rate of 360 units per day. What should their takt time be?The maker of the world-famous Chocolate Chip Cookies needs to design a product layout for a new product, Mint Chocolate Chip. The company plans to use this new production line eight hours a day in order to meet projected demand of 1,440 cases per day. The following table describes the tasks involved in the production of a case of Mint Chocolate Chip Cookies. 27 seconds 0.3333 seconds 18 seconds 14 seconds 56 seconds 20 secondsA production process at Kenneth Day Manufacturing is shown in Figure S7.9. The drilling operation occurs separately from, and simultaneously with, sawing and sanding, which are independent and sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel).a) Which operation is the bottleneck?b) What is the bottleneck time?c) What is the throughput time of the overall system?d) If the firm operates 8 hours per day, 20 days per month, whatis the monthly capacity of the manufacturing process?
- An assembly line with 20 activities is to be balanced. The total amount of time to complete all 20 activities is 50 minutes. The longest activity takes 2.4 minutes and the shortest takes 0.9 minute. The line will operate for 300 minutes per day. What are the maximum and minimum cycle times? Round your answers to one decimal place. Maximum cycle time: minutes Minimum cycle time: minutes How much daily output will be achieved by each of those cycle times? Round your answers to the nearest whole number. Daily output achieved by maximum cycle time: units/day Daily output achieved by minimum cycle time: units/dayMr. Aris Benn manages an assembly line that produces a piece of equipment that is used to clean floors. The process to produce this piece of equipment consists of 10 steps. Determine what other information is needed in order to balance this assembly line. Also, set up a numerical example of the line balancing problem at hand. Using this example, demonstrate how to balance the line and how to calculate its efficiency.The following table shows the process times in minutes (or minutes/unit - how many minutes to process one unit) of a six-station serial production line (1-2-3-4-5-6). Station 1 2 3 4 5 6 Which station(s) is (are) the bottleneck(s)? Station 2 Station 5 Stations 3 and 4 Stations 2 and 5 Process Time (minutes/unit) 8 11 7 7 11 4
- Dr. Lori Baker, operations manager at Nesa Electronics, prides herself on excellent assembly line balancing. She has been told that the firm needs to complete 96 instruments per 24-hour day. The assembly-line tasks for the production of the instrument are: Task Time (minutes) Predecessors A 3 ---- B 6 ---- C 7 A D 5 A, B E 2 B F 4 C G 5 F H 7 D, E I 1 H J 6 E K 4 G, I, J Draw the precedence diagram If the daily production (24-hour) production rate is 96 units, what is the highest allowable cycle time? If the cycle time after allowances is given as 12 minutes, what is the daily (24-hour) production rate? With a 12-minute cycle time, what is the theoretical minimum number of stations with which the line can be balanced? Assign task to workstations. Use the following decision rules (heuristics): longest task first, break ties by assigning the task with the most followers. What are the efficiency and the balance delay of the assembly line? Show detil of…What type of process—project, job shop, flow shop, and continuous flow—would most likely be used to produce the following? Explain your reasoning. Apple iPads Weddings Paper Tax preparationgiven information: which step is in bottleneck=30 min for tan leather 60/30=2 briefcases per hr are processed at the bottleneck workstation per hour throughput time of the overall process Throughput = 75 minutes PLEASE answer the following 3 questions: If the manufacturing facility operates 8 hours per day, 250 days a year, what is the annual capacity of this manufacturing process. Assume the company decides to hire additional workers in order to duplicate the bottleneck step identified in part a so that there are 3 of these workstations instead of 1. Redraw the diagram showing the flow of the revised process. Answer parts a through d again based on the new process created in part e?