Sunday, October 1, 2023

What is 3M, 3K, 3G and 5S in Japanese industries

3G, 3M, 3K & 5S Meaning

These words are widely used in Japanese industries. 5S, 3M, 3K & 3G are “Best in-house practices followed on shop floor while working in industries. By adopting these Japanese philosophies we can sustain best manufacturing quality. Each word has its meaning & practices to follow.

3G- Genchi, Genbutsu & Genjitsu

1. GenchiActual Place

2. GenbutsuActual Thing

3. GenjitsuActually

It mean “In case of an abnormality, all the concerned members should actually go to the place where the problem has occurred, see the actual thing & take realistic action to solve the problem”.

3K- Kimeraareta, Kihon Dori & Kichin to mamora

1. KimeraaretaWhat has been decided?

2. Kihon DoriExactly as per standard

3. Kichin to mamoraMust be followed

3K means “What has been decided must be followed exactly as per the standard”. This concept is displayed prominently at work place across company.

5S- Seiri, Seiton, Seiso, Seiketsu & Shitsuke

1. SeiriSort

2. Seiton Set in Order

3. Seiso Shine

4. Seiketsu Standardize

5. Shitsuke Sustain

The list describes how to organize a work space for efficiency and effectiveness by identifying and storing the items used, maintaining the area and items, and sustaining the new order.

The sixth element being safety (safe)


1. MUDA Waste

2. MURIOverburden

3. MURAUnevenness 

Mudamura, and muri are Japanese terms that refer to the three categories of waste found in a business. Understanding each is key to implementing proper lean manufacturing processes. Key concept in the Toyota Production System (TPS) Waste reduction is an effective way to increase profitability.

Waste Control Management

MUDA (Waste) + MURI (Overburden) = MURA (Unevenness)

Above is relation between 3M.

MUDA is a thing of MURA.

MUDA generally said is a thing of MURA.

MURI will also be looked for if MUDA is found MUDA will also be looked for if MURI is found Since only one of the two was found, don’t feel easy.


What are 8 Wastage in Industries?

  1. Defects
  2. Overproduction
  3. Waiting
  4. Non-Utilize talent
  5. Transportation
  6. Inventory
  7. Motion
  8. Extra-Processing
To remember we will use word- DOWNTIME.


3 reality principles are used in research & problem solving techniques. These principle instruct to:

1. Go to the Actual place [Genba]

2. Know the actual situation (By touching, seeing &
being in contact with actual element) 

3. Be realistic (After gaining information from actual place
and actual contact one must be realistic in his assessment)

Thankyou for visiting the site, if you like this post, support my work by sharing or following on below social media icon.


Hi.. welcome to blog. Professional Engineer, blogger and tech educator. This blog is being managed since 2020. Purpose of this blog website is to get connected with those people who are interested in learning technical skills and are doing work in industries. Also we create content to help people in need. I am reachable, click on contact page for any support. Thank You