Operations and Supply Chain Management 9th edition
9th Edition
ISBN: 9781119320975
Author: Roberta S. Russell, Bernard W. Taylor III
Publisher: WILEY
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Question
Chapter 16, Problem 5P
Summary Introduction
To draw: To compute the approximate or exact demand for widgets.
Introduction
Lean production is a system for the management in which it focuses on reducing waste, checking the quality, and all the efforts are put to fulfill the market needs. All the activities starting from manufacturing to distribution are managed efficiently through the lean system.
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Cletus and Spike Company is implementing a Kanban system for a heated water bowl manufacturing line that produces 1,500 units in an eight-hour day. The heating element has a waiting time of 30 minutes and a processing time of one hour. The container size is 40 heating elements, and the safety factor is 15 percent. What is the maximum inventory of heating elements in the system?
It takes Aaron 15 minutes to produce 10 widgets to fill acontainer and 5 minutes to transport the container to thenext station, where Maria works. Maria’s process takesabout 30 minutes. The factory uses a safety factor of 20%.Currently, five kanbans rotate between Aaron and Maria’sstations. What is the approximate demand for widgets?
A production system uses kanban cards to control production and movement of parts and uses 30 pieces of
a certain part. Standard containers hold 15 parts. The waiting time for parts containers is about 42 minutes.
Management has assigned a safety factor of .20 to this work centre. How many containers should be used
to support this operation?
Chapter 16 Solutions
Operations and Supply Chain Management 9th edition
Ch. 16 - Prob. 1QCh. 16 - Prob. 2QCh. 16 - Prob. 3QCh. 16 - Prob. 4QCh. 16 - Prob. 5QCh. 16 - Prob. 6QCh. 16 - Prob. 7QCh. 16 - Prob. 8QCh. 16 - Prob. 9QCh. 16 - Prob. 10Q
Ch. 16 - Prob. 11QCh. 16 - Prob. 13QCh. 16 - Prob. 14QCh. 16 - Prob. 15QCh. 16 - Prob. 16QCh. 16 - Prob. 17QCh. 16 - Prob. 18QCh. 16 - Prob. 19QCh. 16 - Prob. 20QCh. 16 - Prob. 21QCh. 16 - Prob. 22QCh. 16 - Prob. 23QCh. 16 - Prob. 25QCh. 16 - Prob. 26QCh. 16 - Prob. 27QCh. 16 - Prob. 28QCh. 16 - Prob. 30QCh. 16 - Prob. 31QCh. 16 - Prob. 1PCh. 16 - As local developers prepare for an increase in...Ch. 16 - Prob. 3PCh. 16 - Prob. 4PCh. 16 - Prob. 5PCh. 16 - Prob. 6PCh. 16 - Prob. 7PCh. 16 - Prob. 8PCh. 16 - Prob. 9PCh. 16 - In a large microelectronics plant, the assembly...Ch. 16 - Prob. 11PCh. 16 - Prob. 12PCh. 16 - Prob. 13PCh. 16 - Prob. 2.1CPCh. 16 - Prob. 2.2CPCh. 16 - Prob. 2.3CPCh. 16 - Prob. 2.4CPCh. 16 - Prob. 3.1CPCh. 16 - Prob. 3.2CPCh. 16 - Prob. 3.3CPCh. 16 - Prob. 3.4CP
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- Create a diagram that describes how Kanban systems workarrow_forwardThe following information describes a manufacturing system: Daily demand is 1,025 units. Replenishment lead time is 1.5 days. A 2.5 day safety stock is desired. Products are stored in containers that hold 940 units. How many kanban containers are needed for this system?arrow_forwardA JIT system uses kanban cards to authorize movement of incoming parts. In one portion of the system, a work center uses an average of 98 parts per hour while running. The manager has assigned an inefficiency factor of .28 to the center. Standard containers are designed to hold 6 dozen parts each. The cycle time for parts containers is about 105 minutes.arrow_forward
- A JIT system uses kanban cards to authorize movement of incoming parts. In one portion of thesystem, a work center uses an average of 100 parts per hour while running. The manager hasassigned an inefficiency factor of .20 to the center. Standard containers are designed to hold sixdozen parts each. The cycle time for parts containers is about 105 minutes. How many containersare needed?arrow_forwardAn assembly station is asked to process 100 circuit boards per hour. It takes 20 minutes to receive the necessary components from the previous work station. Completed circuit boards ae placed in a rack that will hold 10 boards. The rack must be full before it is sent on to the next work station. If the factory uses a safety factor of 10%, how many kanbans are needed for the circuit board assembly process?arrow_forwardThe welding department supplies parts to the final assembly line. Management decides to implement a kanban system and has collected the following data: The daily demand is 2000 units. The production lead time is 4 days (this includes processing time, transport time, and waiting time). Management has decided to have 1 day of safety stock. One container fits 400 units. How many kanban containers will be needed to support this system?arrow_forward
- You are asked to analyze the kanban system of LeWin, a French manufacturer of gaming devices. One of the workstations feeding the assembly line produces part M670N. The daily demand for M670N is 1,800 units. The average processing time per unit is 0.003 day. LeWin’s records show that the average container spends 1.05 days waiting at the feederworkstation. The container for M670N can hold 300 units. Twelve containers are authorized for the part. Recall that r is the average processing time per container, not per individual part.a. Find the value of the policy variable, a, that expresses the amount of implied safety stock in this system.b. Use the implied value of a from part (a) to determine the required reduction in waiting time if one container was removed. Assume that all other parameters remain constant.arrow_forwardYou are asked to analyze the kanban system of LeWin, a French manufacturer of gaming devices. One of the workstations feeding the assembly line produces part M670N. The daily demand for M670N is 1,800 units. The average processing time per unit is 0.003day. LeWin's records show that the average container spends 1.05 days waiting at the feeder workstation. The container for M670N can hold 300 units. Twele containers are authroized for the part. Recall that p is the average processing time per container, not per individual part. Find the value of the policy variable, a, that expresses the amount of implied safety stock in this system.arrow_forwardIn which ways, if any, are the following systems analogous to kanban: returning empty bottles to the supermarket and picking up filled ones; running a hot dog stand at lunchtime; withdrawing money from a checking account; raking leaves into bags?arrow_forward
- . 4. It takes Susan 30 minutes to solder 10 circuit boards to fill a container and 2 minutes to transport the container to the next station, where John works. John's process takes about 45 minutes. The facility uses a safety factor of 10 percent. Currently, 5 kanbans rotate between Susan and John's stations. What is the approximate demand for circuit boards? 5. Bill works as a sorter for UPS. He can sort a tub of 50 packages in 20 minutes. He typically sorts 100 packages an hour. A truck arrives with more tubs each hour. UPS uses a safety factor of 5 percent. How many kanbans are needed for the package- sorting operation?arrow_forwardAn assembly station is asked to process 100 circuit boards per hour. It takes 20 minutes to receive the necessary com- ponents from the previous workstation. Completed circuit boards are placed in a rack that will hold 10 boards. The rack must be full before it is sent on to the next worksta- tion. If the factory uses a safety factor of 10%, how many kanbans are needed for the circuit board assembly process?arrow_forwardYou are asked to analyze the kanban system of LeWin, a French manufacturer of gaming devices. One of the workstations feeding the assembly line produces part M670N. The daily demand for M670N is 1,775 units. The average processing time per unit is 0.004 day. LeWin's records show that the average container spends 0.900 days waiting at the feeder workstation. The container for M670N can hold 400 units. 15 containers are authorized for the part. Recall that p is the average processing time per container, not per individual part. Part 2 a. The value of the policy variable α, that expresses the amount of implied safety stock in this system is __arrow_forward
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