Machine Safety Sign – ‘DO NOT START – Men Working on Machine

Stop Accidental Start-Ups During Maintenance

Protect fitters, electricians and production teams while they’re inside the guards. This bold red prohibition sign tells anyone reaching for the start lever to STOP:

Do not start – Men working on machine

The ISO 7010-style “no-hand-on-lever” symbol backs up the text, so the message is crystal-clear even in noisy or multilingual workshops.

Self-adhesive Vinyl** – flexible, sticks to smooth surfaces - Indoor walls, glass panels, painted doors

Rigid Plastic (2 mm)** – lightweight yet sturdy - Car parks, pillars, temporary fencing    

Aluminium Composite (3 mm)** – premium & vandal resistant -  mounting on exterior walls or posts


Ideal Locations

  • CNC lathes, milling centres & presses

  • Conveyor start stations & pinch points

  • Packaging lines during change-overs

  • Construction plant & generators

  • Repair bays and maintenance cages

Choose from three material options—each available in multiple sizes—to meet your specific requirements:

  1. Plastic (High-Impact Polystyrene)
    • Thickness:  2mm
    • 5-Year Outdoor Guarantee for durability and compliance
  2. Vinyl (Self-Adhesive White Vinyl)
    • Indoor/Outdoor Use: 4 years indoors, 1 year outdoors
    • Easy to apply on most smooth surfaces
  3. Aluminium Composite
    • 7-Year Outdoor Guarantee
    • Lightweight and rust-free for long-lasting performance

    All signs are Made in Britain with quality printing for clear, visible safety messaging. Standard sizes include 

    297 mm x 210 mm; 420 mm x 297 mm; 600 mm x 450 mm; 800 mm x 600 mm

    Have any questions or need a custom size? Contact us for more information—we’re here to help!

    Quick Ship, Bulk Order Discounts available, Mix and Match,  Custom Printed in the UK

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    What Customers Say

    “Exactly the wording our engineer insisted on—vinyl version stuck perfectly to the stainless panel.”
    “Composite board outside the baler hasn’t faded after a year of forklift traffic.”

    Need Other Safety Signs?

    Look through our full range of lock-out/tag-out, PPE, hazard and parking signage—mix any designs in one basket to save automatically!