How to Make Production Plan Without SAM Value?

Yes, there is a way to perform production planning tasks without garment SAM value.

The alternative way is calculating machine productivity to estimate line capacity as well as your factory capacity. If one know the procedure and formula of calculating productivity of the production floor, can find machine productivity easily. Later this productivity data would be considered as base of production planning. 

Method of calculating Machine productivity:

Machine productivity is defined as number of units produced per machine in a given time period.

Machine productivity = (Total production of a line in a day / No. of machines in the line) pieces per day per machine 

For example, suppose a line of 35 machines has produced 280 pieces per day (8 hours shift day). Machine productivity of the line 
= 280/35 pieces per machine per 8 hours day 
= 8 pieces per machine per 8 hours day

Finding daily line output data and machine numbers would not be a difficult job to anyone. Just for your information - style to style productivity will vary depending on work content of the style. So, you can prepare a database of the machine productivity for the previously produced styles. You can use historical data while required and update your machine productivity after each style gets over.

How to use productivity data in Production Planning?

Factory capacity Calculation:

Suppose machine productivity of your factory for ladies blouse is 6 pieces per machine per 8 hours shift and you have total 400 machines in your factory. So daily production capacity of your factory for ladies blouse would be equal to 400*6 pieces or 2400 piece per day (8 hours shift).

Factory capacity calculation formula of a given product

Factory capacity  (in pieces) = (Machine productivity * No. of running machines in your factory)  

Other planning related tasks those can be performed using factory capacity and line capacity figures are as following -

• Lead time calculation
• Order booking  
• Order scheduling
• Cost per piece

You can also measure line capacity using labor productivity data. But machine number in a factory is more stable than manpower (labor).