Overview
ISO 11161:2007 - Safety of machinery: Integrated manufacturing systems - Basic requirements defines safety principles for Integrated Manufacturing Systems (IMS) that combine two or more interconnected machines (e.g., component manufacturing or assembly lines). The standard focuses on the safety-relevant interconnection of machines, giving requirements and recommendations for safe design, safeguarding, risk assessment and information for use. It is a Type‑B1 machinery safety standard and complements machine‑specific standards rather than replacing them.
Key topics and technical requirements
- Scope and terminology: Defines IMS, task zones, hazard zones, integrator roles, and limits of the system.
- Risk assessment strategy: Systematic guidance for specifying IMS limits, determining tasks, identifying hazardous situations, estimating and evaluating risks (see Clauses 4–6).
- Risk reduction and validation: Requirements for selecting protective measures, validating safeguards and control measures, and documenting validation (Clauses 6 and 10).
- Task zones and safeguarding: Design and functional analysis of task zones where manual interventions occur; safeguarding measures to protect operators during inspection, maintenance, set‑up (Clause 7).
- Span of control and control logic: Rules for the span of control across multiple machines, start/restart procedures, emergency stop design, and control system requirements (Clause 8).
- Special safeguards: Guidance on muting and blanking of sensors, protective measures when safeguards are suspended, and escape/rescue provisions (Clause 8).
- Information for use: Marking, instructions and information exchange between integrator, user and suppliers (Clause 9; Annex B).
- Practical examples: Informative annexes covering IMS examples, information flow, span of control cases and temporary observation procedures (Annexes A–D).
Applications and practical value
ISO 11161 is intended for:
- System integrators designing IMS and coordinating multiple machine suppliers.
- OEMs and machine builders who supply modules for integrated lines.
- Safety engineers, plant managers and compliance officers implementing risk assessments, safeguarding strategies and safety validation for production lines.
Practical uses include safe layout of assembly lines, integration of material‑handling systems, defining task‑zone protections during routine interventions, and establishing safe start/stop and emergency procedures.
Related standards
ISO 11161:2007 references and complements:
Using ISO 11161 helps ensure safer, compliant integrated manufacturing systems through structured risk analysis, validated protective measures and clear integrator/user responsibilities.
