Sistemi per Macchinari conformi a EN ISO 14120 ed EN ISO 13857

Safety Standards

Machine Guarding Systems compliant with EN ISO 14120, Compatible with EN ISO 13857 and Other Reference Standards

EU and International Directives estabilish the obligation to protect machinery with fences complying with specific construction and safety distance requirements. Without these Guards, machinery can't be operated.

For example, Perimeter Guarding must:

  • Be designed and built so as to prevent climbing EN ISO 14120-5.18
  • Be equipped with retained fasteners when disassembled EN ISO 14120-5.19
  • Ensure adequate viewing of production processes EN ISO 14120-5.2.4
  • Be placed at a specific distance from the danger zone EN ISO 13857

EN ISO 14120 (excerpts)

General requirements for the design and construction of fixed and movable guards

  • Rimozione dei componenti delle Protezioni Perimetrali Satech - EN ISO 14120-5.3.9


EN ISO 14120-5.3.9

Demountable fixed parts of Guards shall only be removable with the use of a tool. Fixed Guards shall be designed to prevent easy removal.
  • Rigidezza delle Protezioni Perimetrali Satech - EN ISO 14120-5.4.3


EN ISO 14120-5.4.3

(...) Guard frames (...) and infill materials shall be selected and arranged to provide a rigid and stable structure and to resist deformation.
  • Visibilità del macchinario delle Protezioni Perimetrali Satech - EN ISO 14120 5.9

Machine viewing

EN ISO 14120-5.9

Where viewing of machine operation is required through the Guard, materials shall be selected with suitable properties. If (...) wire mesh is used, this should be of adequate open area and suitable colour to permit viewing. Viewing will be enhanced if the perforate material is darker than the area observed.
  • Reti Antiarrampicamento della Protezioni Perimetrali Satech - EN ISO 14120 5.18


EN ISO 14120-5.18

Climbing on guards shall, as far as practicable, be inhibited by design. Considerations shall be given to this possibility in their construction and the selection of materials and shapes. For example, by eliminating horizontal structural members and the horizontal component of mesh fabric from the outside surface of the guard, climbing is made more difficult.

Operating Force

EN ISO 14120,

Movable guards or removable sections of guards shall be designed to permit ease of operations.

Impact resistance

EN ISO 14120, 5.4.2

Guards shall, as far as practicable, be designed and the material selected to withstand and contain reasonably foreseeable impacts and ejections (...).

Noise reduction

EN ISO 14120, 5.16

Where necessary, materials shall be selected to provide noise and vibration reduction and (…) minimize effects of resonance which can transmit or amplify noise.

EN ISO 13857 (excerpts)

Safety distances to prevent hazard zones being reached by upper and lower limbs

Reaching over protective structures

EN ISO 13857, 4.2.2

Reaching through regular openings

EN ISO 13857,

Protezioni Perimetrali Satech - EN ISO 13857_Accesso attraverso aperture regolari
The dimension of the opening “e” corresponds to the side of a square opening, the diameter of a round opening and the narrowest dimension of a slot opening. For openings larger than 120 mm, safety distances in accordance with point 4.2.2 shall be used.
* If the length of the slot opening is ≤ 65 mm, the thumb acts as a stop and the safety distance for protective structures can be reduced to 200 mm, resulting in great space saving.
    • EasyGuard
    • ImpactGuard
    • FastGuard
    Minimum safety distance 120mm
    • AdaptaGuard
    Minimum safety distance 200mm
    • BlueGuard
    Minimum safety distance 200mm

Reduced distances, more space saved

The Satech mesh slot (both for Framed and Frameless Systems) is designed to allow Machine Guards installation at a reduced distance from hazard, so that you can enjoy more floor space for your machinery.

Safety distances to prevent access by lower limbs

EN ISO 13857, 4.3

When it is not possible to foresee upper limb access through the opening, it is possible to use the values given in this Table to determine safety distances for the lower limbs.

e” refers to the same types of opening as in chapter

* If the narrower slot width is ≤ 75 mm, distance can be reduced to ≥ 50 mm.
* * Slot openings with e > 180 mm as well as square or round openings with e > 240 mm allow access with the whole body.

Other Reference Standards

  • Protezioni Perimetrali per robot industriali Satech - UNI EN ISO 10218-2

EN ISO 10128-2

Safety requirements for Industrial Robots


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