EBK OM
6th Edition
ISBN: 9781305888210
Author: Collier
Publisher: YUZU
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Chapter 8, Problem 13PA
(a)
Summary Introduction
Interpretation:Assembly line needs to be balanced based on given information.
Concept Introduction: Assembly line balancing is an important task that helps to reduce the cycle time by keeping the precedence relationships as it is.
(b)
Summary Introduction
Interpretation:Assembly line needs to be balanced based on given information.
Concept Introduction: Assembly line balancing is an important task that helps to reduce the cycle time by keeping the precedence relationships as it is.
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Balance the assembly line shown below for (a) a shift output of 60 pieces and (b) a shift output of 40 pieces. Assume an 8-hour shift, and use the rule: choose the assignable task with the longest processing time. Compute the line efficiency for each case.
Fill in the table below for a shift output of 60 pieces. Break ties by choosing the lowest task number. If your answer is zero, enter "0". Round your answers to the nearest whole number.
Workstation
Tasks
Total Time
Idle Time
1
2
3
4
Total
What is the assembly-line efficiency? Round your answer to one decimal place.
%
Fill in the table below for a shift output of 40 pieces. Break ties by choosing the lowest task number. If your answer is zero, enter "0". Round your answers to the nearest whole number.
Workstation
Tasks
Total Time
Idle Time
1
2
3
Total
What is the assembly-line efficiency? Round your answer to one decimal place.
%
Using the information below answer the following questionsa) What is the bottleneck in the process – show your work by demonstrating the workloadby product and station.b) Using the traditional (margin) based model what is the order of priority of the 4 products,and how many of each can they produce BY MONTH. Show your math for determiningthe order of priority and for determining the number of unitsc) Using the bottle keck based model what is the order of priority of the 4 products, andhow many of each can they produce BY MONTH. Show your math for determining theorder of priority and for determining the number of unitsd) What is the profit using the traditional method – show your mathe) What is the profit using the bottleneck method – show your mathThe factory runs one 8-hour shift per day per station, operates five days a week. The skilledemployees get paid $25 / hour. In addition, the factory has a weekly overhead of $2000. Due touncertainty in the demand planning, management has…
given 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?
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- An assembly line with 50 activities is to be balanced. The total amount of time to complete all 50 activities is 60 minutes. The longest activity takes 1.8 minutes and the shortest takes 0.6 minute. The line will operate for 540 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/dayarrow_forwardA 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).arrow_forwardPositively Rivet Inc. is a small machine shop that produces sheet metal products. It had one line dedicated to the manufacture of light-duty vent hood shells, but because of strong demand it recently added a second line. The new line makes use of higher-capacity automated equipment but consists of the same basic four processes as the old line. In addition, the new line makes use of one machine per workstation, while the old line has parallel machines at the workstations. The processes, along with their machine rates, number of machines per station, and average times for a lone job to go through a station (i.e., not including queue time), are given for each line in the following table: Process Old Line New Line Rate per Machine (parts/hour) # Machines per Station Time (minute) Rate per Machine (parts/hour) # Machines per Station Time (minute) Punching 15 4 4.0 120 1 0.50 Braking 12 4 5.0 120 1 0.50 Assembly 20 2 3.0 125…arrow_forward
- A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 4 units. The department uses a working time of 56 minutes per hour. Assign the tasks shown in the accompanying precedence diagram (times are in minutes) to workstations using the following rules:arrow_forwardAn assembly line with 17 tasks is to be balanced. The longest task is 2.4 minutes, and the totaltime for all tasks is 18 minutes. The line will operate for 450 minutes per day.a. What are the minimum and maximum cycle times?arrow_forwardKiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40 teddy bears per hour on its assembly line. The following information will assist in answering the questions that follow: Task Information for Kiko Teddy Bear What is the maximum possible output of the line? What is the theoretical minimum number of workstations using the cycle time computed in” b “above Assign tasks to workstations using the cycle time in “b” above.arrow_forward
- The production process shown below consists of five stages. The numbers in parentheses are the times in minutes to complete one unit before it moves on to the next stage. The demand rate is 48 units per hour.arrow_forwardA visa application process from a Tumaritis country can be described in the chart below. The head of visa administration notices that the visa processing process has gone wrong and decides to examine the whole process. a. Explain the difference between bottlenecks and constraintsb. Identify the bottleneck of this process and explain your answerc. Calculate the throughput time of the above process and explain how many files can be processed in 1 hour?d. Explain how to solve the problem in the above process.arrow_forwardWhat is the required workstation cycle time to meet the desired output rate, and how can you balance this line using the longest task time (filling in the chart below)? Note: Leave no cells blank - be certain to enter "0" wherever required.arrow_forward
- Use excel to show formulas 1. A company is designing a product layout for a new product. They plan to use this production line 16 hours a day in order to meet forecasted demand of 1200 units per day. For output to equal forecasted demand, what should be the actual cycle time for this production?arrow_forwardThe desired daily output for an assembly line is 540 units. This assembly line will operate 720 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME(SECONDS) IMMEDIATEPREDECESSOR A 35 — B 25 A C 35 A D 55 B E 5 B F 15 C G 30 E-D H 5 F-G b. What is the workstation cycle time? c. Balance this line using the largest number of following tasks. Use the longest task time as a secondary criterion. (Leave no cells blank - be certain to enter "0" wherever required.)arrow_forwardThe diagram below shows a system that includes 7 operations with their capacities given as units/hr. What is the capacity (units/hr) of this system? Write the steps out manually pleasearrow_forward
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