I. Introduction
With the rapid advancement of smart manufacturing and precision processing technologies, laser marking machines have been widely adopted in industries such as consumer electronics, automotive parts, medical devices, food packaging, and hardware tools. Leveraging advantages such as non‑contact processing, permanent marking, high precision, and high efficiency, they have become indispensable core equipment in the field of modern industrial identification. However, as a high‑intensity optical radiation source, improper use or lack of protection may cause irreversible damage to operators‘ eyes and skin, while also imposing higher requirements on electromagnetic compatibility and electrical safety. Therefore, the laser radiation report is not only a “passport” for product compliance and market entry but also a critical measure for enterprises to fulfil safety responsibilities and mitigate market risks.
II. Applications and Safety Precautions for Laser Marking Machines
Laser marking machines use high‑energy‑density laser beams to act on the surface of materials, causing physical or chemical changes to form clear and permanent marks. Their application scenarios cover diverse materials such as metals (stainless steel, aluminium alloys), plastics (ABS, PC), ceramics, glass, and even biological tissues. In actual production, operators must pay close attention to the following points:
Protective equipment: Must wear laser safety goggles with a protection level matching the laser wavelength (commonly 1064 nm, 532 nm, 355 nm), and anti‑radiation work clothing.
Environmental control: Equipment should be placed in enclosed or semi‑enclosed work areas, equipped with protective housings or barriers to shield laser radiation and prevent scattered light from escaping.
Operating procedures: Never insert any part of the body into the optical path while the machine is on; before debugging or maintenance, always cut off the main laser power and discharge residual capacitor charge.
Regular calibration: Optical components such as focusing lenses and reflectors must be regularly cleaned and calibrated to prevent abnormal radiation leakage caused by optical path misalignment.
III. Safety Analysis of Laser Marking Machines
Laser equipment safety is multi‑dimensional, covering four main categories: optical radiation safety, electrical safety, mechanical protection safety, and labelling safety. According to international standard IEC 60825‑1 and domestic standard GB 7247.1, laser products are classified from Class 1 to Class 4 based on output power and hazard level. The vast majority of industrial laser marking machines fall into Class 3B or Class 4 high‑power lasers, and both direct beams and specular reflections are potentially hazardous. Therefore, the equipment must be equipped with built‑in interlock devices, emergency stop switches, key controls, optical shutters, and other safety features, with warning labels prominently displayed. Only through comprehensive safety testing can it be demonstrated that the equipment’s risks are controllable under intended use conditions.
IV. What is a Laser Radiation Report for a Laser Marking Machine?
A laser radiation report is a technical document issued by a third‑party testing body with CNAS (China National Accreditation Service for Conformity Assessment) and CMA (China Metrology Accreditation) qualifications. Based on standardised test methods, the report quantitatively evaluates the radiation emission level, effectiveness of protective measures, classification, and beam parameters (power, pulse energy, divergence angle, spot size, etc.) of the laser product, and provides a clear conclusion on whether it meets IEC/GB standard requirements. It is a key component of supporting documents for product exports to the EU (CE certification), the U.S. (FDA 21 CFR 1040.10), and China Compulsory Certification (CCC), and serves as an important basis for customs and market supervision inspections.
V. Timeline and Influencing Factors
Under normal circumstances, the standard service cycle from sample receipt to official report issuance is 7‑12 working days. The actual timeline may be affected by the following factors:
Equipment power class: High‑power or complex pulse models require additional testing time.
Documentation completeness: Missing technical documents may require supplementary submission, extending the cycle.
Rectification and re‑testing: If the first test fails, the manufacturer must make corrections and re‑test, adding approximately 3‑5 working days.
Expedited service: Some organisations offer 3‑5 working day expedited service (additional fees apply).
It is recommended that manufacturers allow sufficient time to avoid delays in product launch or export shipping schedules due to report delays.
VI. Recommended Professional Service Provider – Shenzhen Zhongwei Inspection
Shenzhen Zhongwei Inspection is a leading provider of laser product testing and certification services in South China, with over ten years of dedicated experience in laser equipment safety and performance. The organisation holds multiple authoritative accreditations including CNAS, CMA, and CBTL, and its laboratory is equipped with world‑class precision instruments such as power meters, spectrometers, beam quality analysers, and radiation scattering test systems. Service scope includes:
Laser radiation safety testing (IEC 60825‑1 / GB 7247.1)
Laser performance parameter testing (power stability, pulse repetition frequency, beam divergence angle, M² factor)
FDA registration and 21 CFR 1040.10 guidance
CE‑MD Machinery Directive and EN 60825‑1 conformity assessment
With over 10,000 successful cases, Zhongwei Inspection has provided long‑term technical support to supply chains of well‑known enterprises. Its engineering team is highly experienced in the testing challenges of various fibre lasers, CO₂ lasers, and UV solid‑state lasers. The organisation offers a one‑stop solution from pre‑inspection and corrective actions to official certification, significantly reducing repeat testing costs and shortening the certification cycle.
