Machinery Safety 101

Get the Basics Right!

For more than 15 years I’ve been teach­ing people about risk assess­ment, machinery safety and CE Mark­ing of machinery in private, onsite classes and through present­a­tions at safety con­fer­ences. Things are… 

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Interlocking Devices: The Good, The Bad and the Ugly

This entry is part 1 of 7 in the series Guards and Guarding

Note: A short­er ver­sion of this art­icle was pub­lished in the May-2012 edi­tion of  Man­u­fac­tur­ing Auto­ma­tion Magazine. When design­ing safe­guard­ing sys­tems for machines, one of the basic build­ing blocks is the… 

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How to become Instantly Incompetent

Many engin­eers and design­ers fall into a really simple trap, one that makes them instantly incom­pet­ent. These are not stu­pid people. They have the qual­i­fic­a­tions, so what is it that can catch someone out… 

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Why I wear a Poppy on 11-Nov

In a recent art­icle in the Inde­pend­ent, Robert Fisk writes that the poppy has become noth­ing more than a fash­ion state­ment in the UK. Merely a way to show that you are British,… 

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IRRST Injection Moulding Machine Safety Checklists

Institut de recherche Robert-Sauvé en santé et en sécurité du travail

Plastic injec­tion mould­ing machines are one of the most dan­ger­ous machines in wide­spread use in industry. The Insti­tut de recher­ché Robert-Sauvé en santé et en sécur­ité du trav­ail, is one… 

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The Problem with Probability

This entry is part 4 of 9 in the series Risk Assess­ment

Risk Factors When risk is ana­lyzed, at least in the indus­tri­al sec­tor, we usu­ally fol­low a pro­cess defined in ISO 12100. This approach defines two broad para­met­ers, sever­ity and prob­ab­il­ity, and then… 

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Updates to Popular Articles

This entry is part 8 of 16 in the series Emer­gency Stop

We’ve recently updated a couple of our pop­u­lar art­icles! Check them out! Bust­ing Emer­gency Stop Myths Read­er Ques­tion: Mul­tiple E‑Stops and Resets

Reader Question: Multiple E‑Stops and Resets

This entry is part 7 of 16 in the series Emer­gency Stop

I had an inter­est­ing ques­tion come in from a read­er today that is rel­ev­ant to many situ­ations: “When you have mul­tiple E‑Stop but­tons I have often got­ten into an argu­ment that says… 

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Understanding the Hierarchy of Controls

The Hierarchy of Controls illustrated as an inverted triangle with each level of the hierarchy written one above the other, starting with Inherently Sfe design, then Engineering Controls, then Information for Use, then Administrative Controls and finally descending to PPE at the bottom. An arrow with the text "Effectiveness" on it runs parallel to the triangle and points downward from Inherently safe design to PPE.
This entry is part 4 of 5 in the series Hier­archy of Controls

(Eds. note: This art­icle was ori­gin­ally writ­ten in 2011 and was updated in Nov. 2018.) The “Hier­archy of Con­trols” is one approach to risk reduc­tion that has become entrenched in the… 

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Understanding Risk Assessment

A group surrounding a computer discussing a problem.
This entry is part 10 of 9 in the series Risk Assess­ment

When people dis­cuss ‘Risk’ there are a lot of dif­fer­ent assump­tions made about what that means. For me, the study of risk and risk assess­ment tech­niques star­ted in 1995. As a technologist… 

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