Overview
EN ISO 11553-1:2020 - Safety of machinery - Laser processing machines - Part 1: Laser safety requirements (ISO 11553-1:2020) defines how to identify and control laser radiation hazards arising from machines that use laser radiation to process materials. It sets safety requirements and specifies the information manufacturers must supply (in addition to IEC 60825) so users can operate, maintain and service laser processing machines safely. The standard is aligned with machinery safety principles and supports conformity with the EU Machinery Directive (see Annex ZA).
Key Topics
- Scope and exclusions: Applies to laser processing machines; excludes devices manufactured solely for photolithography, stereolithography, holography, medical applications covered by IEC 60601-2-22, and data storage equipment.
- Hazard identification: Describes laser radiation hazards and sources of emission, including hazards induced by external effects and beam-delivery/beam-path components.
- Laser characteristics: Covers relevant properties of laser radiation that affect risk (wavelength, power, modes) without replacing IEC 60825 product classification.
- Risk assessment & reduction: Requires systematic risk assessment in accordance with ISO 12100 and implementation of risk reduction measures - engineering controls, interlocks, guards, operating modes (automatic, setting, manual intervention, service) and safer-by-design measures.
- Safety measures by location and mode: Differentiates controls for accessible areas, enclosed processing zones and during different operating modes.
- Verification & validation: Specifies verification procedures to confirm that safety requirements and protective measures are implemented and effective.
- Information and labelling: Details user information, warnings, and labelling requirements to be supplied by manufacturers.
- Normative references: Integrates related standards (ISO 12100, IEC 60825-1/4, ISO 13849, IEC 60204-1, etc.) to ensure coherent safety design and control systems.
Applications
Who uses EN ISO 11553-1:2020:
- Machine manufacturers and integrators designing laser cutting, welding, marking, engraving and other laser processing equipment.
- Safety engineers and designers performing risk assessments and selecting engineering controls and interlocks.
- Compliance officers and testing laboratories validating conformity with machinery safety regulations and CE marking requirements.
- Plant managers and maintenance personnel using manufacturer information to establish safe operating, maintenance and service procedures.
Practical benefits:
- Reduces risk of eye and skin injury from laser radiation.
- Guides selection of guards, interlocks and safe operating modes.
- Provides the required documentation and labelling for safe use and regulatory compliance.
Related Standards
Keywords: EN ISO 11553-1:2020, laser safety, laser processing machines, laser radiation hazards, machinery safety, risk assessment, IEC 60825.
