Efficiency | AllAboutLean.com

On the Benefits of Putting Your Processes Close Together

Christoph Roser — Tue, 07 Mar 2023 11:00:06 +0000

Putting your processes closer together in manufacturing obviously saves space. However, there are many more benefits of putting processes closer together. Let me give you a run down of the benefits: Space The obvious benefit is to require less space for your machines. Shop floor space does cost money (regardless if rented or owned). Albeit, ... Read more

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What Percentage Value Add to Expect for Manual Work?

Christoph Roser — Tue, 01 Feb 2022 11:00:09 +0000

In my last post I described a quick-and-dirty approach to estimate the percentage of value add (i.e., the efficiency) of manual work. While the value is only an estimate, it is a measurement that you can take quickly and easily even in passing for a manual workplace. You simply count when a person is adding ... Read more

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How to Estimate Value Add for Manual Work – How to See Waste!

Christoph Roser — Tue, 25 Jan 2022 11:00:20 +0000

One of the necessary tasks in becoming leaner and improving your industry is to eliminate waste. I like to use a simple approach for measuring waste in manual work to know how good (or bad) the current situation is. To explain my approach I commissioned a few animations. Let me proudly present my approach and ... Read more

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More Reasons for Working Less

Christoph Roser — Tue, 10 Dec 2019 11:00:18 +0000

You probably hate long drudging hours working in the office and feeling really worn out at the end of the day. Maybe you’re sitting in an office working right now (and of course your reading my blog means you are working 😉 ), knowing that you will be worn out at the end of the ... Read more

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Diseconomies of Scale

Christoph Roser — Tue, 30 Apr 2019 11:00:02 +0000

The economy of scale is well known. The larger a company gets, the more efficient it becomes. However, this trend does not go on indefinitely, and eventually turns into a diseconomy of scale. In this post I will look at the diseconomies of scale, and also the very related Parkinson’s Law. Economies of Scale Economies ... Read more

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How Cheap Can You Make it?

Christoph Roser — Tue, 25 Dec 2018 11:00:18 +0000

I was on a quest, a quest to find the cheapest ballpoint pen possible. And what I found was amazing. Modern manufacturing has achieved stunning productivity, where even a complex product like a ballpoint pen can be produced at costs that were unbelievable only a few decades ago. While everybody can make a pen, the ... Read more

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On Running Changeovers

Christoph Roser — Tue, 06 Jun 2017 11:00:38 +0000

Changeover times and their reduction are popular topics in lean manufacturing. In this post I would like to introduce the idea of running changeovers for production lines. The idea behind it is simple, and probably many of you do it already. Nevertheless, I have found little info on it online. I also would like to ... Read more

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The Phases of a Changeover

Christoph Roser — Tue, 30 May 2017 11:00:19 +0000

A changeover is changing the set-up of a process from one product to the next. Reducing changeover times is a common and popular way to decrease inventory or to increase available work time (see SMED). Ideally, the changeover time should be zero, allowing true one-piece flow. In reality, however, it is often not zero. This ... Read more

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