03/04/2026
Compressed air. Know what you’re dealing with, it’s stored energy.
Compressed air, when used well is a delight. It is clean, quiet, and easy to use. Look at a factory where machines operate quietly and efficiently, processing products using compressed air. It’s like magic.
The side most people never even consider, is the machinery and energy used to collect and store that compressed air. It’s a hidden part of a factory, farm, tyre shop or any other obscure industry. Most of us use it every single day in the tyres of the vehicles we travel in.
Because compressed air is taken for granted, people do not understand the danger it possesses. I didn’t. Let me tell you a story that happened to me.
As a young man I worked in a local hydraulic supplier. Part of my tasks was resealing hydraulic cylinders. One day I was stripping down a small hydraulic cylinder and found it to be stuck. I tugged and pulled as much as I could, but I could not extract the rod assembly from the cylinder.
I then had a bright idea. With the cylinder clamped tightly in a vice, I connected an air pipe from the workshop air compressor to the cylinder and opened the tap. The cylinder filled up with air under pressure and did not budge.
My next step is Universal the world over….
Hit it with a hammer.
I have replayed this in my mind hundreds of times over the years.
With a huge boom, the rod fired itself across the workshop, losing no height until it hit the workshop doors with another huge bang. My boss noticing the unusual noises came to enquire. Luckily, nobody was injured and no real damage done. It could’ve been much worse.
It’s an amazing lesson that I’ve never forgotten. Probably no more than 4 or 5 litres of 10 bar compressed air, launched 10 kg of metal rod, 6 metres across a workshop at high speed (approximate measurements, it was 30 years ago).
So what is the takeaway here?
There are so many lessons to learn from this story. As technicians, engineers, managers and end users, understanding the explosive power of compressed air is vitally important.
It is sobering to consider and understand the real implications of things going wrong.
Untrained, inexperienced staff.
Inappropriate use of compressed air
No standard operating procedures
No risk assessments
The list goes on
No safety inspections
Take a moment to consider your compressed air system.
Is it in good condition?
Is it used correctly?
Do the people maintaining it know what they’re doing?
Do the people using it know what they’re doing?
Are there things that you are turning a blind eye to?
DO YOU need to step back and ask if YOU know what you’re doing?
Stay safe, everyone
Love Stephen
(Photo does not show actual rod)