Takt time is the time in which a manufacturer should produce a product so as to satisfy customer demand. This can be called as pulse of lean manufacturing.
How to calculate Takt time
Suppose a manufacturer have a customer who wants 500 units per day. Presently the manufacturer works in two shifts and working time per shift is 420 minutes. Here takt time can be calculated as follows.
No of units to be produced per shift = 500/2
= 250 nos
Takt time = 420/250
= 1.68 minutes.
This means the manufacturer should produce a unit in every 1.68 minutes of his production time.
We have developed an takt time calculator, for easy calculations. Have a look.
So the formula for takt time is, working time per shift / demand per shift
Please note that working time per shift is excluding the time for lunch break, tea break and planned maintenance time, if any.
Uses of takt time
This gives a target to the manufacturer to align all his all operation within 1.68 minutes. Otherwise he cannot satisfy his customer demand.
Takt time is used for balancing the assembly line. You can read the article on line balancing for knowing more about it.
Another application of takt time is to calculate the no of work station required in an assembly line. This is described in the article how to calculate no of work station from takt time.
You can also note one more point, if bottleneck cycle time in a assembly line is below takt time the assembly line can satisfy its customer demand. If not, it will not meet customer demand and bottleneck need to be reduced to below takt time.
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Ot comes in the right direction. But you miss a few points. Unless its covered in lunch and tea time. But as you mention rhe cycle time. Lets say the manual labour. Over the shift period in an 8hr working day, you have to consider the A. fatige influence, combined with B. rest & personal care. Questions asked by supervisor. Material shortage. Etc. This are 2 major factors which i quite often see neglected.. These are inconvenience perventages. And C. This is the overall effeciency rate in % over a shift. Which combines A & B. So of you want to make This really up to date then This should be included otherwise , it remains a foggy situation. And quite some floor managers neglect this, for various reasens.