15.21 A moving belt line is used to assemble a product whose work content = 22 min. Production rate = 35 units/hr, and the proportion uptime 0.96. The length of each station = 2.0 m and station manning level = 1.0 for all stations. The belt speed can be set at any value between 0.6 and 3.0 m/min. It is expected that the balance delay will be about 0.08 or slightly higher. Time lost for repositioning each cycle is 6 sec. (a) Determine the number of stations needed on the line. (b) Using a tolerance time that is 50% greater than the cycle time, what would be an appropriate belt speed and spacing between parts?

Practical Management Science
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Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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15.21 A moving belt line is used to assemble a product whose work content = 22 min. Production rate =
35 units/hr, and the proportion uptime = 0.96. The length of each station = 2.0 m and station manning
level = 1.0 for all stations. The belt speed can be set at any value between 0.6 and 3.0 m/min. It is
expected that the balance delay will be about 0.08 or slightly higher. Time lost for repositioning each
cycle is 6 sec. (a) Determine the number of stations needed on the line. (b) Using a tolerance time that is
!!
%!
50% greater than the cycle time, what would be an appropriate belt speed and spacing between parts?
Transcribed Image Text:15.21 A moving belt line is used to assemble a product whose work content = 22 min. Production rate = 35 units/hr, and the proportion uptime = 0.96. The length of each station = 2.0 m and station manning level = 1.0 for all stations. The belt speed can be set at any value between 0.6 and 3.0 m/min. It is expected that the balance delay will be about 0.08 or slightly higher. Time lost for repositioning each cycle is 6 sec. (a) Determine the number of stations needed on the line. (b) Using a tolerance time that is !! %! 50% greater than the cycle time, what would be an appropriate belt speed and spacing between parts?
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