Machinery Directive 2006/42/EC: what it really provides and why it is still central to business

What is the Machinery Directive 2006/42/EC?

The Machinery Directive 2006/42/EC is the European regulation that establishes the safety requirements that machinery must comply with before being placed on the European Union market. Its objective is to ensure a high level of health and safety protection for operators, while allowing the free movement of machinery within the European market.

In Italy, the directive was transposed into national law by Legislative Decree 17/2010, which made its principles applicable within the national regulatory system.

The scope of the directive is quite broad. In addition to complete machines, the legislation also covers partly completed machinery, safety components, lifting accessories, and mechanical transmission devices. The idea behind the directive is that safety must be ensured not only by the machine as a whole, but also by all the elements that contribute to its operation.

However, there are some specific exclusions. Certain categories of products, such as vehicles, ships, aircraft, weapons, or certain leisure equipment, are regulated by other European regulations and therefore do not fall within the scope of the Machinery Directive.
A proper understanding of this scope is essential to avoid misinterpretation and legal liability.

Essential health and safety requirements (EHSS)

The core of the directive is represented by the Essential Health and Safety Requirements (EHSR) contained in Annex I of the legislation. These are technical principles that define the minimum conditions for a machine to be designed and constructed safely.

To demonstrate compliance with these requirements, the manufacturer must carry out a risk assessment, a process through which the hazards associated with the machine are identified and the measures necessary to eliminate or reduce them are defined.

This analysis guides the entire design phase. The manufacturer must identify the limits of use of the machine, analyze the potential risks, and integrate appropriate technical solutions into the design. In this way, safety is not added at the end of the process but becomes an integral part of the design.

Among the most important aspects covered by the RESS are those relating to the mechanical strength of materials. The machine components and their connecting parts must be designed to withstand the stresses expected during operation. The design must also take into account phenomena that may compromise safety over time, such as material fatigue, aging, corrosion, or abrasion.

For this reason, the directive requires that the instructions for use indicate the components subject to wear and the criteria for their replacement. Similarly, when the stability of the machine is not guaranteed by its shape or method of installation, adequate fastening systems must be provided to ensure stability during operation.

The principle behind these requirements is simple but fundamental: safety must be designed in from the outset.

The role of fasteners in machine compliance

When discussing industrial machine safety, we often tend to think of protective devices or electronic control systems. In reality, even much simpler elements, such as screws, bolts, nuts, and washers, play a fundamental role in the overall safety of a machine.

The directive requires that the connecting parts of the machine be designed to withstand the stresses expected during operation.

Fasteners are precisely those elements that ensure the structural integrity of machines and the stability of their parts.

The choice of strength class, material, and surface treatment must therefore be made carefully, taking into account the operating conditions and the environment of use. Elements such as screws, nuts, washers, or threaded bars must comply with international technical regulations, including ISO, DIN, and UNI standards, which define dimensional and mechanical characteristics.

In some sectors, such as metal construction, there are also specifically regulated fastening systems, such as EN 14399 or EN 15048 structural fasteners, designed to ensure high mechanical performance.

In industrial practice, an incorrect choice of fastening components can compromise the reliability of the entire system. For this reason, the quality of materials and the correct design of connecting elements are central aspects in machine safety.

CE marking and declaration of conformity

The CE marking is the formal act by which the manufacturer declares that the machine complies with all the requirements of the Machinery Directive.

Before affixing the CE marking, the manufacturer must complete a specific process that includes risk assessment, design in accordance with safety requirements, and the preparation of technical documentation. This document contains all the information demonstrating the machine's conformity, such as drawings, design calculations, a description of the materials used, and specifications of the components installed.

Once this documentation has been completed, the EC declaration of conformity is drawn up, whereby the manufacturer assumes responsibility for the safety of the machine.

For certain categories of machinery considered to be high risk, listed in Annex IV of the directive, the conformity assessment procedure may also require the intervention of a notified body.

The transition to EU Regulation 2023/1230

The Machinery Directive 2006/42/EC will be replaced by Regulation (EU) 2023/1230, which will become fully applicable from January 20, 2027.

The difference between a directive and a regulation is significant. A directive must be transposed by individual Member States, while a regulation is directly applicable throughout the European Union, ensuring greater regulatory uniformity.

The new regulation introduces important updates to adapt the legislation to technological developments. Among the most relevant topics are the cybersecurity of machines, the integration of software with safety functions, and the regulation of systems based on artificial intelligence. The possibility of using digital instructions instead of paper documentation is also introduced.

Despite these innovations, the fundamental principles of the directive remain unchanged. Safety continues to be based on risk assessment, the quality of materials, and the reliability of the machine's structural components.

FAQ – frequently asked questions

What does the Machinery Directive stipulate?

The Machinery Directive 2006/42/EC establishes the essential health and safety requirements that machinery and safety components must comply with in order to be placed on the European market. It requires manufacturers to carry out a risk assessment, draw up a technical file, and affix the CE marking.

What does the Machinery Directive 2006/42/EC stipulate?

The directive requires that all machinery be designed and constructed in accordance with the requirements of Annex I, with particular attention to the mechanical strength of materials, the stability of the structure, and the safety of control systems. Connecting elements, such as fasteners, must also comply with these requirements.

When will the new Machinery Directive come into force?
Directive 2006/42/EC will be replaced by EU Regulation 2023/1230, which will become fully applicable on January 20, 2027.

Which machines are excluded from the Machinery Directive?
Certain specific categories are excluded, such as playground equipment, weapons and ammunition, vehicles, ships, aircraft, electrical installations, and certain household appliances intended for the end consumer.

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