The Machine That Failed the CE Inspection: Documentation, Not Hardware
A machine built for the EU market. It went through CE inspection. It failed. The hardware was fine (guards, e-stops, safety relays all correct). The documentation was missing: technical file, risk assessment, EC declaration of conformity, instructions. This is about CE documentation requirements, not about the machine being unsafe.
The CE requirements
| Document | What it contains |
|---|---|
| Technical file | Drawings, BOM, calculations, circuit diagrams |
| Risk assessment | Hazard identification, risk reduction, residual risks |
| EC declaration of conformity | Manufacturer’s declaration that the machine meets the directives |
| Operating instructions | Safe operation, maintenance, emergency procedures (in the local language) |
| Safety components list | Guard ratings, light curtain specs, safety relay category |
| Test reports | Noise levels, vibration, electrical safety (EN 60204-1) |
What we did
1. Wrote the risk assessment. We identified every hazard (pinch points, moving parts, electrical, noise). For each, we defined the risk reduction (guard, interlock, training). We listed the residual risks (things the operator must know about). The risk assessment is a live document — it’s part of the technical file.
2. Compiled the technical file. We collected the drawings (3D models, 2D prints), the BOM (with safety component specs), the electrical schematic, and the mechanical calculations (frame stress, guard rigidity). The file is indexed and accessible. The inspector reviewed it in 2 hours.
3. Wrote the operating instructions. The manual covers: installation, safe operation, maintenance, emergency stop, lockout/tagout, troubleshooting. It’s in the local language (the EU country’s language). It includes the residual risks from the risk assessment.
4. Issued the EC declaration. The manufacturer signs the declaration. It lists the applicable directives (Machinery Directive 2006/42/EC, EMC Directive, Low Voltage Directive). It references the harmonized standards used (EN ISO 13849 for safety, EN 60204-1 for electrical). The machine bears the CE mark.
The hardware was fine
The machine had all the right safety hardware: guards, e-stops, Category 3 safety relays, light curtains. It failed on paperwork. The CE mark isn’t just a sticker — it’s a declaration backed by documentation. Without the file, the machine can’t be sold in the EU. We spent 2 weeks writing the documentation. The inspection passed on the second attempt.
The CE rule: CE isn’t just hardware. It’s documentation: risk assessment, technical file, declaration, instructions. Start the paperwork at design time, not after the machine is built. The machine that failed CE had safe hardware but no file. The inspector doesn’t care that the machine is safe — they care that you can prove it.
