3M in Lean Manufacturing

In this blog we can easily understand what are all the deviation  we are facing in the manufacturing process.

3M Of Lean Manufacturing

  • Muda (waste)
  • Mura (unevenness)
  • Muri(overburden)


Muda means wastefulness and uselessness.

Value-added work is a process that adds value to the product or service that the customer is willing to pay for. There are two types of Muda,

  • Type 1
  • Type 2

Muda Type 1 includes non-value-added activities in the processes that are necessary for the end customer. Eg: inspection and safety testing

Muda Type 2 includes non-value added activities in the processes, but these activities are unnecessary for the customer. As a result, Muda Type 2 should be eliminated.

There are seven categories of waste under Muda Type 2

  1. Transport
  2. Inventory
  3. Motion
  4. Waiting
  5. Overproduction
  6. Over-processing
  7. Defects


Mura means unevenness, non-uniformity, and irregularity.

  • Mura drives and leads to Muda.


Assembly line: Products need to pass through several workstation during the assembly process. When the capacity of one station is greater than the other stations, we can see the accumulation of waste in the form of overproduction, waiting, etc.


Muri is to cause overburden, by this we mean to give unnecessary stress to our employees and our processes. This is caused by Mura .


Not well trained in the process

Poor laid workplace

Unclear instructions

Lack of proper tools and equipment

Fluctuating demands

Lack of proper maintenance.


If we eliminate these things  automatically productivity gets high.

If your want to work on this issue.we are here to help you

Contact us: http://www.hashllp.com/