An assembly line running at 2000 hours/year is required to meet the annual demand of 50000 units. The total work contenttime = 45 min and the manning level is 1. Assuming line efficiency of 0.90 and balancing efficiency of 0.80; determine: (a)the number of work station required to meet the annual demand, and (b) the number of workers required to meet the annualdemand if repositioning time of 15 sec is considered in part (b).

Answer: a) Number of work station required to meet the annual demand = 30 b) Number of workers…

Answered: An assembly line running at 2000…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Three forklift trucks are used to deliver pallet loads of parts between work cells in a factory. Average travel distance loaded is 350 ft and the travel distance empty is estimated to be the same. The trucks are driven at an average speed of 3 miles/hr when loaded and 4 miles/hr when empty. Terminal time per delivery averages 1.0 min (load = 0.5 min and unload = 0.5 min ). If the traffic factor is assumed to be 0.90, availability = 100%, and worker efficiency = 0.95, what is the maximum hourly delivery rate of the three trucks?
1- Consider the precedence relationship between the activities of an assembly line. Knowing that the cycle time (T) of the assembly line is 10, then: a) Show how the activities are assigned to the work station? b) Calculate line efficiency and smoothness indices.
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Q1: Explain the significant role of Power and Free Conveyor Systems in modern manufacturing facilities. In your opinion, how the mode of control of power industrial trucks helps to handle the materials in different ways.
Given the following data, determine the number of trucks that would be required per shift to haul iron ores from the open pit to the milling plant. Hauling time per shift = 6 hours Truck Capacity = 35 MT rear dump truck Production rate per shift- 18,900 MT Total cycle time = 5.53 min. Assume efficiency of 50 productive minute per hour
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A 12-station transfer line was designed to operate with an ideal production rate = 50 parts/hour. However, the line does not achieve this rate, since the line efficiency E = 0.60. It costs $75/hour to operate the line, exclusive of materials. The line operates 4000 hours per year. A computer monitoring system has been proposed that will cost $25,000 (installed) and will reduce downtime on the line by 25%. If the value added per unit produced = $4.00, will the computer system pay for 270 itself within one year of operation. Use expected increase in revenues resulting from the computer system as the criterion. Ignore material costs in your calculations
A flow-line mass production operation consists of six manual workstations. Work units are moved synchronously and automatically between stations, with a transfer time of 10 secs. The manual processing operations performed at the six stations take 45 sec, 50 sec, 40 sec, 42 sec, 30 sec, and 55 sec, respectively. Determine (a) cycle time for the line, (b) time to process one work until through the six workstations, (c) average production rate, and (d) time to produce 20,000 units.
In a factory where there are three shifts: The machine overhead cost is found to be £8.20 / hr, the labour overhead cost is found to be £30.20/hr, and the premises overhead cost is found to be £3.50/hr. Using the principle of overhead costing: If a single component takes 23 minutes to manufacture on the milling machine. What is the cost / part? You should include machine costs, labour costs and premises costs in your answer, but you can neglect material and energy costs. Express your answer in £ rounded up to the nearest penny.
3.3 How does an automated assembly operate with a minimum of manual labor involvement?How is data collected and recorded during an automated manufacturing process?

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