What is Kaizen in an MSME?
Kaizen means good change: many small improvements, made by everyone in the plant, every day. It needs ideas and effort more than money. The people who do the work know the problems best, so Kaizen asks them, lets them fix what they can and makes the new way the standard.
In many plants we hear the same lines. "We will fix it when we get time." The operator knows the problem but nobody asks him. There is one big improvement project in a year and then nothing. The same problem comes back every month.
In many plants the habit is to order, not to ask. Kaizen starts by changing that.
Why small steps beat big jumps
| Small steps | One big jump |
|---|---|
| Done by the people in the area | Done by experts |
| Cheap or free | A new machine or system |
| Every day | Once in a while |
| Facts and numbers | Opinions and complaints |
A new machine gives a jump. Then, slowly, the gain slides back. Setups get longer, small breakdowns are ignored, and old habits return. Kaizen holds the gain and adds to it.
Small steps add up. An improvement of 1% a day sounds tiny. But each day builds on the one before. Over a year, it adds up to many times the starting point. The line looks flat for a long time, then climbs. The lesson is simple: do small things every day and do not judge too early.
How do you start daily Kaizen?
Keep the system very light.
- Write the idea in three lines: the problem, what I did, the result. A photo helps.
- Reply in 48 hours: yes, no or "let us try". Never silence.
- Do it. Small ideas are done by the person who raised them, this week, with help if needed.
- Report it on a one-page Kaizen report with before and after photos.
- Show it on a Kaizen board.
A small improvement is one that takes no more than about two minutes to put in place, to begin with. A fixed place for a report, a gauge stand at the machine, a colour-coded bin: these solve many problems.
The test for a report is simple: no photo and no number, no Kaizen.
Here is an example. An operator walked to the quality room about six times a shift to borrow a gauge, about 12 minutes lost each shift, and sometimes skipped the check to save the walk. A gauge stand at the machine, with an outline showing when it was missing, cost very little. The machine stopped waiting, and the check was always done.
Where do ideas come from?
Every plant is full of ideas. Look at:
- the eight wastes you can see on the floor;
- non-conformances from the 5S audit;
- last month's rejection slips;
- the downtime record, where the same stops repeat;
- near-misses and customer complaints;
- the problems marked on a value stream map.
Choose the tool by where the waste is. Do not use one tool everywhere.
When do you need a Kaizen event?
A Kaizen event is a focused effort by a team of six to eight people, on the floor, for three to five days. Use it when:
- the problem crosses departments, such as production, maintenance, stores and quality;
- it needs a few days of full focus;
- daily Kaizen has not fixed it, and the same problem keeps coming back.
Write a one-page charter first: the problem, a goal with a number and a date, the scope, the team and the sponsor. "Reduce setup time" is not a goal. "Setup of 60 minutes by day 5" is.
A typical week runs like this. Day 1: see the facts. Day 2: find the causes. Day 3: try the ideas. Day 4: make the new standard and train both shifts. Day 5: report to the sponsor on the floor.
Most failed events fail in the "after". Fix a date after 30, 60 and 90 days to check that the gain is holding, and copy it to similar machines.
How do you count the saving honestly?
Keep three kinds of benefit apart.
| Kind | How to count |
|---|---|
| Yearly saving | Time saved × hourly rate, or scrap saved × cost per piece |
| One-time cash | Stock reduced, space freed. Count once. |
| No rupee value | A safer machine, a cleaner area. Tick it; do not invent a number. |
Example: a Kaizen reduces stock by Rs. 3 lakh and saves Rs. 40,000 a year in handling. Do not write "saving Rs. 3.4 lakh a year". Write "Rs. 3 lakh freed once, plus Rs. 40,000 a year". Always write how you worked out the number. One exaggerated saving makes people doubt all the others.
How do you make the gain stay?
A Kaizen without a new standard slides back in a month. After every improvement:
- Change the SOP, setup sheet or check sheet.
- Put a one-point lesson at the machine.
- Train every shift.
- Check it in the 5S audit and the floor walk.
The ideas are already in your plant. Kaizen is the habit of asking for them and acting on them within two days.
How to start in your plant
- Fix a Kaizen board and a three-line idea sheet.
- Ask the supervisors to reply to every idea in 48 hours.
- In the first year, aim for one Kaizen per person every three months. Build the habit before you raise the target.
- Do one short event on the problem that hurts most.
- Show results monthly. Thank people in public.
Key points
- Kaizen is many small improvements by everyone, at little cost.
- Reply to every idea within 48 hours, and let the person who raised it do it.
- Use a short event only when a problem crosses departments or keeps returning.
- Count yearly savings and one-time cash separately, and show how you worked them out.
- Change the standard, or the gain will slide back.
