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Danger Men Working On Machine Signs
£6.99
In stock
SKU
HZ145G*
Danger Men Working on Machine Signs help you warn staff, contractors and visitors where work is taking place on machinery, supporting clearer hazard awareness in workplace environments.
Danger Men Working on Machine Signs are hazard warning signs for workplaces where people are carrying out work on machinery. They help staff, contractors and visitors recognise the danger before approaching, giving you a clear visual warning at machine access points and nearby work areas.
Where should you position this machinery warning sign?
Install the sign where anyone approaching the machine can see it before entering the immediate work area, such as beside the access point or on an adjacent wall. Keep it unobstructed, well lit and positioned before the hazard so people have time to recognise the warning and change their behaviour.
Choosing a size for the viewing distance
Choose the size by how far away people need to recognise the warning and how much clear mounting space you have. This is practical guidance rather than a certified viewing-distance rating; use the larger format where people approach from farther away or sightlines are less direct.
| Sign size | Practical viewing guide | Best suited to |
|---|---|---|
| H 150 x W 125 mm | Around 1–3 metres | Close approach points |
| H 210 x W 148 mm | Around 2–5 metres | Short to medium sightlines |
| H 297 x W 210 mm | Around 3–7 metres | More prominent advance warning |
What should improve once the sign is displayed?
Placed before the machine work area, the sign gives people an early cue to slow down, check what is happening and avoid approaching or interfering with the machinery until they understand the situation.
✅ Approaching staff are more likely to pause before entering the immediate machine work area.
✅ Contractors and visitors receive clearer warning that work is currently taking place on the machinery.
✅ Operators have stronger visual support for communicating the hazard before someone reaches the equipment.
Product Specifications
- Sign message: “Danger Men working on machine”
- Purpose: warns people that work is taking place on machinery
- Sign type: hazard warning
- Pictogram: ⚠ general warning triangle
- Symbol: ! black exclamation mark
- EN ISO 7010 code: W001 General warning
- Orientation: portrait
- Material options: Rigid Plastic, Vinyl
- Sizes: H 297 x W 210 mm; H 210 x W 148 mm; H 150 x W 125 mm
- Background colour: yellow
- Text colour: black
- Symbol colour: black
- Finish: glossy film surface / satin
- Material thickness: varies by material
- Where to use: visible approach points to machinery while work is in progress
- Display area: indoors / outdoors
- Fitting method: wall mount
- Rigid Plastic fixings: sold separately
- Adhesive Rigid Plastic: self-adhesive backing
- Non-photoluminescent and non-reflective
- Supplied: single sign
Installation Guidance
❌ Placement choices that weaken the warning
❌ Do not mount the sign behind equipment, open doors or guards that can obscure it.
❌ Do not choose the smallest size when people normally approach from several metres away.
❌ Do not leave the sign hidden amongst several competing safety messages where its meaning can be missed.
❌ Situations this sign does not control
❌ Do not treat it as a substitute for machinery isolation, guarding or other required controls.
❌ Do not use it as your sole instruction where the machine must specifically not be started or operated.
❌ Do not rely on signage alone where people need to be physically prevented from entering a hazardous work area.
✅ Installation that gives people time to react
✅ Position it on the approach to the machine so people see the warning before reaching the work area.
✅ Select the size from the real sightline and mounting position rather than simply choosing the smallest available format.
✅ Keep it clean, unobstructed and relevant, and use suitable fixings for the chosen material and mounting surface.
Frequently asked questions
When should I use Danger Men Working on Machine Signs? Use them where people approaching machinery need to know that work is taking place before they enter the immediate work area. They provide a warning; they do not physically prevent machinery from being operated.
Is this the same as a “Do Not Start” sign? No. This sign warns that people are working on the machine. If starting or operating the equipment must be prohibited, you need the appropriate isolation, prohibition and safe-working controls for that task.
Which sign size should I choose? Choose according to the approach distance and available sightline. The 150 x 125 mm option suits closer viewing, while the 297 x 210 mm format gives you greater visual prominence where the warning needs to be noticed earlier.
Can this sign replace machine isolation, guarding or barriers? No. A warning sign communicates the hazard but does not control hazardous energy, prevent access or make machinery safe. Use it alongside the controls identified by your risk assessment and safe system of work.
Can I display the sign outdoors? The supplied specification includes indoor and outdoor display. You should still choose the material and fixing method to suit the mounting surface and ensure the sign remains secure, visible and readable.
Does the pictogram follow EN ISO 7010? Yes. The general warning pictogram corresponds to W001. The supplementary wording identifies the specific situation so people understand what the general warning relates to.
Is this the same as a “Do Not Start” sign? No. This sign warns that people are working on the machine. If starting or operating the equipment must be prohibited, you need the appropriate isolation, prohibition and safe-working controls for that task.
Which sign size should I choose? Choose according to the approach distance and available sightline. The 150 x 125 mm option suits closer viewing, while the 297 x 210 mm format gives you greater visual prominence where the warning needs to be noticed earlier.
Can this sign replace machine isolation, guarding or barriers? No. A warning sign communicates the hazard but does not control hazardous energy, prevent access or make machinery safe. Use it alongside the controls identified by your risk assessment and safe system of work.
Can I display the sign outdoors? The supplied specification includes indoor and outdoor display. You should still choose the material and fixing method to suit the mounting surface and ensure the sign remains secure, visible and readable.
Does the pictogram follow EN ISO 7010? Yes. The general warning pictogram corresponds to W001. The supplementary wording identifies the specific situation so people understand what the general warning relates to.
Features and Benefits
Features
- ✓ General warning pictogram is paired with explicit machinery-work wording
- ✓ The word “Danger” is given strong visual prominence
- ✓ Portrait layout separates the warning symbol from the explanatory message
- ✓ Three size choices allow the warning to suit different approach distances
Benefits
- ✓ People can recognise that a hazard exists before reading every word
- ✓ Staff and visitors can quickly understand why extra care is required around the machine
- ✓ You can match visibility to the actual sightline rather than choosing purely by available wall space
- ✓ Clear hazard communication supports your wider controls without suggesting the sign itself isolates the machine
Compare related machine hazard warnings
If a wider format suits the mounting position better, compare the danger men working on machine landscape sign. It gives you the same hazard wording in an alternative orientation.
Where the main concern is operating equipment rather than maintenance activity, consider moving machinery danger signs. They help you match the warning more closely to the hazard being identified.
For machinery capable of starting unexpectedly, look at automatic machinery start warning signs. This wording is more specific where unexpected operation is the key risk.
To compare other messages before choosing, browse the wider machinery hazard safety signs. This makes it easier to select wording that reflects the actual hazard present.
Estimated Delivery Day
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