Overview
EN ISO 10472-4:2008 - Safety requirements for industrial laundry machinery - Part 4: Air dryers (ISO 10472-4:1997) is the CEN-adopted European version of the ISO technical specification addressing safety of industrial air-drying equipment. It focuses on tumble dryers (net usable cage volume > 160 L), tunnel finishers (including conveyors and cabinet dryers), and related hazards. The standard complements the common requirements in ISO 10472-1 and general machinery safety guidance in ISO/TR 12100‑1/2.
Key topics and requirements
The standard systematically identifies hazards and specifies safety measures and verification steps for air dryers. Main technical topics include:
- Hazard identification specific to air dryers: mechanical, electrical, thermal, noise, materials/substances, fire/explosion and control-system failures.
- Mechanical hazards: risks from rotating cages (entanglement), power-operated doors (crushing/shearing), tunnel finisher conveyors and loading/unloading movements.
- Electrical safety: alignment with machinery electrical equipment principles (see EN/IEC 60204‑1).
- Thermal risks: protection against hot surfaces, steam spray and heated loading/unloading zones.
- Materials and substances: fire and explosion risk reduction and handling of chemicals used in laundering processes.
- Safety measures and verification: design solutions, guarding, interlocks, pressure-sensitive devices and testing/verification procedures to confirm compliance.
- User information: requirements for instruction handbooks, warning signs and operational guidance.
- Regulatory linkage: informative annexes (ZA and ZB) map the standard to Essential Requirements of EU Machinery Directives (98/37/EC and 2006/42/EC), giving a presumption of conformity when implemented.
Practical applications and users
This standard is intended for stakeholders involved in the design, manufacture, installation, operation and compliance of industrial laundry air-drying equipment:
- Machine designers and OEMs developing tumble dryers, tunnel finishers and cabinet dryers
- Safety engineers and risk assessors carrying out machine risk assessments
- Compliance officers and technical managers ensuring conformity with the Machinery Directive
- Procurement teams specifying safety features for industrial laundry equipment
- Service, maintenance and validation personnel implementing verification and testing routines
- Notified bodies and testing laboratories assessing conformity to relevant machinery safety requirements
Related standards
EN ISO 10472‑4 is used together with:
- ISO 10472‑1 (Common requirements)
- ISO/TR 12100‑1 / 12100‑2 (Machinery safety principles)
- EN/IEC 60204‑1 (Electrical equipment of machines)
- ISO 6182‑1, EN 953, EN 1050 and other referenced safety standards listed in the normative references
By following EN ISO 10472‑4:2008, organizations can reduce mechanical, thermal and electrical risks associated with industrial air dryers and support regulatory compliance and safer machine design.