The Drum

Bullant Filters - The Drum

We call the constraint or bottleneck of a flow line, the Drum. The Drum of the flow line shown below is Machine #3, it is the machine that determines the drumbeat (the instantaneous rate portential) for the schedule.

The capacity of the Drum relative to the other machines in a line determines the performance characteristics of that flow line.

For example the flow line below is "unbalanced" meaning that the machines upstream and downstream of the Drum (ie. Machine #3) have greater capacity. This means that they will be less likely to starve or block material to or from Machine #3. Therefore the efficiency of the line will be relatively high when compared to a line where all the machine capacities are the same as Machine #3 (i.e. "balanced").

Process Map 1comp

Signup to our email list

Get the latest posts from our Answer Centre as well as other useful supply chain insights.